G425 — Auto-calibrate Backlash and Nozzle Offsets (#13050)

Marlin/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/default/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/3DFabXYZ/Migbot/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/AlephObjects/TAZ4/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Anet/A2/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Anet/A2plus/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Anet/A6/Configuration_adv.h

@@ -520,6 +520,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Anet/A8/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/AnyCubic/i3/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/ArmEd/Configuration_adv.h

@@ -525,6 +525,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/BIBO/TouchX/cyclops/Configuration_adv.h

@@ -520,6 +520,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/BIBO/TouchX/default/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/BQ/Hephestos/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/BQ/Hephestos_2/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/BQ/WITBOX/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Cartesio/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Creality/CR-10/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Creality/CR-10S/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Creality/CR-10mini/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Creality/CR-8/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Creality/Ender-2/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Creality/Ender-3/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Creality/Ender-4/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Einstart-S/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Felix/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/FlashForge/CreatorPro/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/FolgerTech/i3-2020/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Formbot/Raptor/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Formbot/T_Rex_2+/Configuration_adv.h

@@ -525,6 +525,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Formbot/T_Rex_3/Configuration_adv.h

@@ -526,6 +526,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Geeetech/MeCreator2/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Geeetech/Prusa i3 Pro C/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Geeetech/Prusa i3 Pro W/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Infitary/i3-M508/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/JGAurora/A5/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/MakerParts/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Malyan/M150/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Malyan/M200/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Micromake/C1/enhanced/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Mks/Robin/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Mks/Sbase/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/RapideLite/RL200/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/RigidBot/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/SCARA/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Sanguinololu/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/TheBorg/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/TinyBoy2/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Tronxy/X3A/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/UltiMachine/Archim1/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/UltiMachine/Archim2/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/VORONDesign/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Velleman/K8200/Configuration_adv.h

@@ -534,6 +534,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Velleman/K8400/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/WASP/PowerWASP/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/Wanhao/Duplicator 6/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/delta/Anycubic/Kossel/Configuration_adv.h

@@ -523,6 +523,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/delta/FLSUN/auto_calibrate/Configuration_adv.h

@@ -523,6 +523,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/delta/FLSUN/kossel/Configuration_adv.h

@@ -523,6 +523,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/delta/FLSUN/kossel_mini/Configuration_adv.h

@@ -523,6 +523,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/delta/Geeetech/Rostock 301/Configuration_adv.h

@@ -523,6 +523,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/delta/MKS/SBASE/Configuration_adv.h

@@ -523,6 +523,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/delta/Tevo Little Monster/Configuration_adv.h

@@ -523,6 +523,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/delta/generic/Configuration_adv.h

@@ -523,6 +523,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/delta/kossel_mini/Configuration_adv.h

@@ -523,6 +523,58 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/delta/kossel_xl/Configuration_adv.h

@@ -523,6 +523,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/gCreate/gMax1.5+/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/makibox/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/tvrrug/Round2/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/config/examples/wt150/Configuration_adv.h

@@ -521,6 +521,59 @@
 #endif
 
 /**
+ * Automatic backlash, position and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/m
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/m
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/m
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0} // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0} // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screwhead or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define pin which is read during calibration
+  #ifndef CALIBRATION_PIN
+    #define CALIBRATION_PIN -1 // Override in pins.h or set to -1 to use your Z endstop
+    #define CALIBRATION_PIN_INVERTING false // set to true to invert the pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
  * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
  * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
  * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the

Marlin/src/core/utility.h

@@ -128,9 +128,10 @@ class restorer {
   T  val_;
 public:
   restorer(T& perm) : ref_(perm), val_(perm) {}
+  restorer(T& perm, T temp_val) : ref_(perm), val_(perm) { perm = temp_val; }
   ~restorer() { restore(); }
   inline void restore() { ref_ = val_; }
 };
 
-#define REMEMBER(X) restorer<typeof(X)> X##_restorer(X)
-#define RESTORE(X) X##_restorer.restore()
+#define REMEMBER(N,X, ...) restorer<typeof(X)> N##_restorer(X, ##__VA_ARGS__)
+#define RESTORE(N) N##_restorer.restore()

Marlin/src/gcode/calibrate/G425.cpp

@@ -0,0 +1,639 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "../../Marlin.h"
+
+#if ENABLED(CALIBRATION_GCODE)
+
+#include "../gcode.h"
+#include "../../lcd/ultralcd.h"
+#include "../../module/motion.h"
+#include "../../module/planner.h"
+#include "../../module/tool_change.h"
+#include "../../module/endstops.h"
+
+/**
+ * G425 backs away from the calibration object by various distances
+ * depending on the confidence level:
+ *
+ *   UNKNOWN   - No real notion on where the calibration object is on the bed
+ *   UNCERTAIN - Measurement may be uncertain due to backlash
+ *   CERTAIN   - Measurement obtained with backlash compensation
+ */
+
+#ifndef CALIBRATION_MEASUREMENT_UNKNOWN
+  #define CALIBRATION_MEASUREMENT_UNKNOWN   5.0 // mm
+#endif
+#ifndef CALIBRATION_MEASUREMENT_UNCERTAIN
+  #define CALIBRATION_MEASUREMENT_UNCERTAIN 1.0 // mm
+#endif
+#ifndef CALIBRATION_MEASUREMENT_CERTAIN
+  #define CALIBRATION_MEASUREMENT_CERTAIN   0.5 // mm
+#endif
+
+#define HAS_X_CENTER (ENABLED(CALIBRATION_MEASURE_LEFT)  && ENABLED(CALIBRATION_MEASURE_RIGHT))
+#define HAS_Y_CENTER (ENABLED(CALIBRATION_MEASURE_FRONT) && ENABLED(CALIBRATION_MEASURE_BACK))
+
+#if ENABLED(BACKLASH_GCODE)
+  extern float backlash_distance_mm[], backlash_correction, backlash_smoothing_mm;
+#endif
+
+enum side_t : uint8_t { TOP, RIGHT, FRONT, LEFT, BACK, NUM_SIDES };
+
+struct measurements_t {
+  static const float dimensions[XYZ];
+  static const float true_center[XYZ]; // This cannot be constexpr since it is accessed by index in probe_side
+  float obj_center[XYZ] = CALIBRATION_OBJECT_CENTER;
+  float obj_side[NUM_SIDES];
+
+  float backlash[NUM_SIDES];
+  float pos_error[XYZ];
+
+  float nozzle_outer_dimension[2] = {CALIBRATION_NOZZLE_OUTER_DIAMETER, CALIBRATION_NOZZLE_OUTER_DIAMETER};
+};
+
+const float measurements_t::true_center[XYZ] = CALIBRATION_OBJECT_CENTER;
+
+const float measurements_t::dimensions[]  = CALIBRATION_OBJECT_DIMENSIONS;
+
+#define TEMPORARY_ENDSTOP_STATE(enable) REMEMBER(tes, soft_endstops_enabled, enable); TemporaryGlobalEndstopsState tges(enable)
+
+#if ENABLED(BACKLASH_GCODE)
+  #define TEMPORARY_BACKLASH_STATE(enable) REMEMBER(tbst, backlash_correction, enable)
+#else
+  #define TEMPORARY_BACKLASH_STATE(enable)
+#endif
+
+#if ENABLED(BACKLASH_GCODE) && defined(BACKLASH_SMOOTHING_MM)
+  #define TEMPORARY_BACKLASH_SMOOTHING(value) REMEMBER(tbsm, backlash_smoothing_mm, value)
+#else
+  #define TEMPORARY_BACKLASH_SMOOTHING(value)
+#endif
+
+/**
+ * Move to a particular location. Up to three individual axes
+ * and their destinations can be specified, in any order.
+ */
+inline void move_to(
+  const AxisEnum a1 = NO_AXIS, const float p1 = 0,
+  const AxisEnum a2 = NO_AXIS, const float p2 = 0,
+  const AxisEnum a3 = NO_AXIS, const float p3 = 0
+) {
+  set_destination_from_current();
+
+  // Note: The order of p1, p2, p3 may not correspond to X, Y, Z
+  if (a1 != NO_AXIS) destination[a1] = p1;
+  if (a2 != NO_AXIS) destination[a2] = p2;
+  if (a3 != NO_AXIS) destination[a3] = p3;
+
+  // Make sure coordinates are within bounds
+  destination[X_AXIS] = MAX(MIN(destination[X_AXIS], X_MAX_POS), X_MIN_POS);
+  destination[Y_AXIS] = MAX(MIN(destination[Y_AXIS], Y_MAX_POS), Y_MIN_POS);
+  destination[Z_AXIS] = MAX(MIN(destination[Z_AXIS], Z_MAX_POS), Z_MIN_POS);
+
+  // Move to position
+  do_blocking_move_to(destination[X_AXIS], destination[Y_AXIS], destination[Z_AXIS], MMM_TO_MMS(CALIBRATION_FEEDRATE_TRAVEL));
+}
+
+/**
+ * Move to the exact center above the calibration object
+ *
+ *   m                  in     - Measurement record
+ *   uncertainty        in     - How far away from the object top to park
+ */
+inline void park_above_object(measurements_t &m, const float uncertainty) {
+  /* Move to safe distance above calibration object */
+  move_to(Z_AXIS, m.obj_center[Z_AXIS] + m.dimensions[Z_AXIS] / 2 + uncertainty);
+
+  /* Move to center of calibration object in XY */
+  move_to(X_AXIS, m.obj_center[X_AXIS], Y_AXIS, m.obj_center[Y_AXIS]);
+}
+
+#if HOTENDS > 1
+
+  inline void set_nozzle(measurements_t &m, const uint8_t extruder) {
+    if (extruder != active_extruder) {
+      park_above_object(m, CALIBRATION_MEASUREMENT_UNKNOWN);
+      tool_change(extruder);
+    }
+  }
+
+  inline void reset_nozzle_offsets() {
+    constexpr float tmp[XYZ][HOTENDS] = { HOTEND_OFFSET_X, HOTEND_OFFSET_Y, HOTEND_OFFSET_Z };
+    LOOP_XYZ(i) HOTEND_LOOP() hotend_offset[i][e] = tmp[i][e];
+  }
+
+  inline void normalize_hotend_offsets() {
+    for (uint8_t e = 1; e < HOTENDS; e++) {
+      hotend_offset[X_AXIS][e] -= hotend_offset[X_AXIS][0];
+      hotend_offset[Y_AXIS][e] -= hotend_offset[Y_AXIS][0];
+      hotend_offset[Z_AXIS][e] -= hotend_offset[Z_AXIS][0];
+    }
+    hotend_offset[X_AXIS][0] = 0;
+    hotend_offset[Y_AXIS][0] = 0;
+    hotend_offset[Z_AXIS][0] = 0;
+  }
+
+#endif // HOTENDS > 1
+
+inline bool read_calibration_pin() {
+  #if HAS_CALIBRATION_PIN
+    return (READ(CALIBRATION_PIN) != CALIBRATION_PIN_INVERTING);
+  #elif ENABLED(Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN)
+    return (READ(Z_MIN_PIN) != Z_MIN_ENDSTOP_INVERTING);
+  #else
+    return (READ(Z_MIN_PROBE_PIN) != Z_MIN_PROBE_ENDSTOP_INVERTING);
+  #endif
+}
+
+/**
+ * Move along axis in the specified dir until the probe value becomes stop_state,
+ * then return the axis value.
+ *
+ *   axis         in - Axis along which the measurement will take place
+ *   dir          in - Direction along that axis (-1 or 1)
+ *   stop_state   in - Move until probe pin becomes this value
+ *   fast         in - Fast vs. precise measurement
+ */
+float measuring_movement(const AxisEnum axis, const int dir, const bool stop_state, const bool fast) {
+  const float step  =            fast ? 0.25                      : CALIBRATION_MEASUREMENT_RESOLUTION;
+  const float mms   = MMM_TO_MMS(fast ? CALIBRATION_FEEDRATE_FAST : CALIBRATION_FEEDRATE_SLOW);
+  const float limit =            fast ? 50                        : 5;
+
+  set_destination_from_current();
+  for (float travel = 0; travel < limit; travel += step) {
+    destination[axis] += dir * step;
+    do_blocking_move_to(destination[X_AXIS], destination[Y_AXIS], destination[Z_AXIS], mms);
+    planner.synchronize();
+    if (read_calibration_pin() == stop_state)
+      break;
+  }
+  return destination[axis];
+}
+
+/**
+ * Move along axis until the probe is triggered. Move toolhead to its starting
+ * point and return the measured value.
+ *
+ *   axis               in     - Axis along which the measurement will take place
+ *   dir                in     - Direction along that axis (-1 or 1)
+ *   stop_state         in     - Move until probe pin becomes this value
+ *   backlash_ptr       in/out - When not NULL, measure and record axis backlash
+ *   uncertainty        in     - If uncertainty is CALIBRATION_MEASUREMENT_UNKNOWN, do a fast probe.
+ */
+inline float measure(const AxisEnum axis, const int dir, const bool stop_state, float * const backlash_ptr, const float uncertainty) {
+  const bool fast = uncertainty == CALIBRATION_MEASUREMENT_UNKNOWN;
+
+  // Save position
+  set_destination_from_current();
+  const float start_pos = destination[axis];
+  const float measured_pos = measuring_movement(axis, dir, stop_state, fast);
+  // Measure backlash
+  if (backlash_ptr && !fast) {
+    const float release_pos = measuring_movement(axis, -dir, !stop_state, fast);
+    *backlash_ptr = ABS(release_pos - measured_pos);
+  }
+  // Return to starting position
+  destination[axis] = start_pos;
+  do_blocking_move_to(destination[X_AXIS], destination[Y_AXIS], destination[Z_AXIS], MMM_TO_MMS(CALIBRATION_FEEDRATE_TRAVEL));
+  return measured_pos;
+}
+
+/**
+ * Probe one side of the calibration object
+ *
+ *   m                  in/out - Measurement record, m.obj_center and m.obj_side will be updated.
+ *   uncertainty        in     - How far away from the calibration object to begin probing
+ *   side               in     - Side of probe where probe will occur
+ *   probe_top_at_edge  in     - When probing sides, probe top of calibration object nearest edge
+ *                               to find out height of edge
+ */
+inline void probe_side(measurements_t &m, const float uncertainty, const side_t side, const bool probe_top_at_edge=false) {
+  AxisEnum axis;
+  float dir;
+
+  park_above_object(m, uncertainty);
+
+  switch(side) {
+    case TOP: {
+      const float measurement = measure(Z_AXIS, -1, true, &m.backlash[TOP], uncertainty);
+      m.obj_center[Z_AXIS] = measurement - m.dimensions[Z_AXIS] / 2;
+      m.obj_side[TOP] = measurement;
+      return;
+    }
+    case RIGHT: axis = X_AXIS; dir = -1; break;
+    case FRONT: axis = Y_AXIS; dir =  1; break;
+    case LEFT:  axis = X_AXIS; dir =  1; break;
+    case BACK:  axis = Y_AXIS; dir = -1; break;
+    default:
+      return;
+  }
+
+  if (probe_top_at_edge) {
+    // Probe top nearest the side we are probing
+    move_to(axis, m.obj_center[axis] + (-dir) * (m.dimensions[axis] / 2 - m.nozzle_outer_dimension[axis]));
+    m.obj_side[TOP] = measure(Z_AXIS, -1, true, &m.backlash[TOP], uncertainty);
+    m.obj_center[Z_AXIS] = m.obj_side[TOP] - m.dimensions[Z_AXIS] / 2;
+  }
+
+  // Move to safe distance to the side of the calibration object
+  move_to(axis, m.obj_center[axis] + (-dir) * (m.dimensions[axis] / 2 + m.nozzle_outer_dimension[axis] / 2 + uncertainty));
+
+  // Plunge below the side of the calibration object and measure
+  move_to(Z_AXIS, m.obj_side[TOP] - CALIBRATION_NOZZLE_TIP_HEIGHT * 0.7);
+  const float measurement = measure(axis, dir, true, &m.backlash[side], uncertainty);
+  m.obj_center[axis] = measurement + dir * (m.dimensions[axis] / 2 + m.nozzle_outer_dimension[axis] / 2);
+  m.obj_side[side] = measurement;
+}
+
+/**
+ * Probe all sides of the calibration calibration object
+ *
+ *   m                  in/out - Measurement record: center, backlash and error values be updated.
+ *   uncertainty        in     - How far away from the calibration object to begin probing
+ */
+inline void probe_sides(measurements_t &m, const float uncertainty) {
+  TEMPORARY_ENDSTOP_STATE(false);
+
+  #ifdef CALIBRATION_MEASURE_AT_TOP_EDGES
+    constexpr bool probe_top_at_edge = true;
+  #else
+    /* Probing at the exact center only works if the center is flat. Probing on a washer
+     * or bolt will require probing the top near the side edges, away from the center.
+     */
+    constexpr bool probe_top_at_edge = false;
+    probe_side(m, uncertainty, TOP);
+  #endif
+
+  #ifdef CALIBRATION_MEASURE_RIGHT
+    probe_side(m, uncertainty, RIGHT, probe_top_at_edge);
+  #endif
+  #ifdef CALIBRATION_MEASURE_FRONT
+    probe_side(m, uncertainty, FRONT, probe_top_at_edge);
+  #endif
+  #ifdef CALIBRATION_MEASURE_LEFT
+    probe_side(m, uncertainty, LEFT,  probe_top_at_edge);
+  #endif
+  #ifdef CALIBRATION_MEASURE_BACK
+    probe_side(m, uncertainty, BACK,  probe_top_at_edge);
+  #endif
+
+  /* Compute the measured center of the calibration object. */
+  #if HAS_X_CENTER
+    m.obj_center[X_AXIS] = (m.obj_side[LEFT] + m.obj_side[RIGHT]) / 2;
+  #endif
+  #if HAS_Y_CENTER
+    m.obj_center[Y_AXIS] = (m.obj_side[FRONT] + m.obj_side[BACK]) / 2;
+  #endif
+
+  /* Compute the outside diameter of the nozzle at the height
+   * at which it makes contact with the calibration object */
+  #if HAS_X_CENTER
+    m.nozzle_outer_dimension[X_AXIS] = m.obj_side[RIGHT] - m.obj_side[LEFT] - m.dimensions[X_AXIS];
+  #endif
+  #if HAS_Y_CENTER
+    m.nozzle_outer_dimension[Y_AXIS] = m.obj_side[BACK]  - m.obj_side[FRONT] - m.dimensions[Y_AXIS];
+  #endif
+
+  park_above_object(m, uncertainty);
+
+  /* The positional error is the difference between the known calibration
+   * object location and the measured calibration object location */
+  m.pos_error[X_AXIS] =
+  #if HAS_X_CENTER
+    m.true_center[X_AXIS] - m.obj_center[X_AXIS];
+  #else
+    0;
+  #endif
+  m.pos_error[Y_AXIS] =
+  #if HAS_Y_CENTER
+    m.true_center[Y_AXIS] - m.obj_center[Y_AXIS];
+  #else
+    0;
+  #endif
+  m.pos_error[Z_AXIS] = m.true_center[Z_AXIS] - m.obj_center[Z_AXIS];
+}
+
+#if ENABLED(CALIBRATION_REPORTING)
+  inline void report_measured_faces(const measurements_t &m) {
+    SERIAL_ECHOLNPGM("Sides:");
+    SERIAL_ECHOLNPAIR("  Top: ", m.obj_side[TOP]);
+    #if ENABLED(CALIBRATION_MEASURE_LEFT)
+      SERIAL_ECHOLNPAIR("  Left: ", m.obj_side[LEFT]);
+    #endif
+    #if ENABLED(CALIBRATION_MEASURE_RIGHT)
+      SERIAL_ECHOLNPAIR("  Right: ", m.obj_side[RIGHT]);
+    #endif
+    #if ENABLED(CALIBRATION_MEASURE_FRONT)
+      SERIAL_ECHOLNPAIR("  Front: ", m.obj_side[FRONT]);
+    #endif
+    #if ENABLED(CALIBRATION_MEASURE_BACK)
+      SERIAL_ECHOLNPAIR("  Back: ", m.obj_side[BACK]);
+    #endif
+    SERIAL_EOL();
+  }
+
+  inline void report_measured_center(const measurements_t &m) {
+    SERIAL_ECHOLNPGM("Center:");
+    #if HAS_X_CENTER
+      SERIAL_ECHOLNPAIR(" X", m.obj_center[X_AXIS]);
+    #endif
+    #if HAS_Y_CENTER
+      SERIAL_ECHOLNPAIR(" Y", m.obj_center[Y_AXIS]);
+    #endif
+    SERIAL_ECHOLNPAIR(" Z", m.obj_center[Z_AXIS]);
+    SERIAL_EOL();
+  }
+
+  inline void report_measured_backlash(const measurements_t &m) {
+    SERIAL_ECHOLNPGM("Backlash:");
+    #if ENABLED(CALIBRATION_MEASURE_LEFT)
+      SERIAL_ECHOLNPAIR("  Left: ", m.backlash[LEFT]);
+    #endif
+    #if ENABLED(CALIBRATION_MEASURE_RIGHT)
+      SERIAL_ECHOLNPAIR("  Right: ", m.backlash[RIGHT]);
+    #endif
+    #if ENABLED(CALIBRATION_MEASURE_FRONT)
+      SERIAL_ECHOLNPAIR("  Front: ", m.backlash[FRONT]);
+    #endif
+    #if ENABLED(CALIBRATION_MEASURE_BACK)
+      SERIAL_ECHOLNPAIR("  Back: ", m.backlash[BACK]);
+    #endif
+    SERIAL_ECHOLNPAIR("  Top: ", m.backlash[TOP]);
+    SERIAL_EOL();
+  }
+
+  inline void report_measured_positional_error(const measurements_t &m) {
+    SERIAL_CHAR('T');
+    SERIAL_ECHO(int(active_extruder));
+    SERIAL_ECHOLNPGM(" Positional Error:");
+    #if HAS_X_CENTER
+      SERIAL_ECHOLNPAIR(" X", m.pos_error[X_AXIS]);
+    #endif
+    #if HAS_Y_CENTER
+      SERIAL_ECHOLNPAIR(" Y", m.pos_error[Y_AXIS]);
+    #endif
+    SERIAL_ECHOLNPAIR(" Z", m.pos_error[Z_AXIS]);
+    SERIAL_EOL();
+  }
+
+  inline void report_measured_nozzle_dimensions(const measurements_t &m) {
+    SERIAL_ECHOLNPGM("Nozzle Tip Outer Dimensions:");
+    #if HAS_X_CENTER
+      SERIAL_ECHOLNPAIR(" X", m.nozzle_outer_dimension[X_AXIS]);
+    #endif
+    #if HAS_Y_CENTER
+      SERIAL_ECHOLNPAIR(" Y", m.nozzle_outer_dimension[Y_AXIS]);
+    #endif
+    SERIAL_EOL();
+  }
+
+  #if HOTENDS > 1
+    //
+    // This function requires normalize_hotend_offsets() to be called
+    //
+    inline void report_hotend_offsets() {
+      for (uint8_t e = 1; e < HOTENDS; e++) {
+        SERIAL_ECHOPAIR("T", int(e));
+        SERIAL_ECHOLNPGM(" Hotend Offset:");
+        SERIAL_ECHOLNPAIR("  X: ", hotend_offset[X_AXIS][e]);
+        SERIAL_ECHOLNPAIR("  Y: ", hotend_offset[Y_AXIS][e]);
+        SERIAL_ECHOLNPAIR("  Z: ", hotend_offset[Z_AXIS][e]);
+        SERIAL_EOL();
+      }
+    }
+  #endif
+#endif // CALIBRATION_REPORTING
+
+/**
+ * Probe around the calibration object to measure backlash
+ *
+ *   m              in/out - Measurement record, updated with new readings
+ *   uncertainty    in     - How far away from the object to begin probing
+ */
+inline void calibrate_backlash(measurements_t &m, const float uncertainty) {
+  // Backlash compensation should be off while measuring backlash
+
+  {
+    // New scope for TEMPORARY_BACKLASH_STATE
+    TEMPORARY_BACKLASH_STATE(false);
+    TEMPORARY_BACKLASH_SMOOTHING(0);
+
+    probe_sides(m, uncertainty);
+
+    #if ENABLED(BACKLASH_GCODE)
+      #if HAS_X_CENTER
+        backlash_distance_mm[X_AXIS] = (m.backlash[LEFT] + m.backlash[RIGHT]) / 2;
+      #elif ENABLED(CALIBRATION_MEASURE_LEFT)
+        backlash_distance_mm[X_AXIS] = m.backlash[LEFT];
+      #elif ENABLED(CALIBRATION_MEASURE_RIGHT)
+        backlash_distance_mm[X_AXIS] = m.backlash[RIGHT];
+      #endif
+
+      #if HAS_Y_CENTER
+        backlash_distance_mm[Y_AXIS] = (m.backlash[FRONT] + m.backlash[BACK]) / 2;
+      #elif ENABLED(CALIBRATION_MEASURE_FRONT)
+        backlash_distance_mm[Y_AXIS] = m.backlash[FRONT];
+      #elif ENABLED(CALIBRATION_MEASURE_BACK)
+        backlash_distance_mm[Y_AXIS] = m.backlash[BACK];
+      #endif
+
+      backlash_distance_mm[Z_AXIS] = m.backlash[TOP];
+    #endif
+  }
+
+  #if ENABLED(BACKLASH_GCODE)
+    // Turn on backlash compensation and move in all
+    // directions to take up any backlash
+
+    {
+      // New scope for TEMPORARY_BACKLASH_STATE
+      TEMPORARY_BACKLASH_STATE(true);
+      TEMPORARY_BACKLASH_SMOOTHING(0);
+      move_to(
+        X_AXIS, current_position[X_AXIS] + 3,
+        Y_AXIS, current_position[Y_AXIS] + 3,
+        Z_AXIS, current_position[Z_AXIS] + 3
+      );
+      move_to(
+        X_AXIS, current_position[X_AXIS] - 3,
+        Y_AXIS, current_position[Y_AXIS] - 3,
+        Z_AXIS, current_position[Z_AXIS] - 3
+      );
+    }
+  #endif
+}
+
+inline void update_measurements(measurements_t &m, const AxisEnum axis) {
+  current_position[axis] += m.pos_error[axis];
+  m.obj_center[axis] = m.true_center[axis];
+  m.pos_error[axis] = 0;
+}
+
+/**
+ * Probe around the calibration object. Adjust the position and toolhead offset
+ * using the deviation from the known position of the calibration object.
+ *
+ *   m              in/out - Measurement record, updated with new readings
+ *   uncertainty    in     - How far away from the object to begin probing
+ *   extruder       in     - What extruder to probe
+ *
+ * Prerequisites:
+ *    - Call calibrate_backlash() beforehand for best accuracy
+ */
+inline void calibrate_toolhead(measurements_t &m, const float uncertainty, const uint8_t extruder) {
+  TEMPORARY_BACKLASH_STATE(true);
+  TEMPORARY_BACKLASH_SMOOTHING(0);
+
+  #if HOTENDS > 1
+    set_nozzle(m, extruder);
+  #endif
+
+  probe_sides(m, uncertainty);
+
+  /* Adjust the hotend offset */
+  #if HOTENDS > 1
+    #if HAS_X_CENTER
+      hotend_offset[X_AXIS][extruder] += m.pos_error[X_AXIS];
+    #endif
+    #if HAS_Y_CENTER
+      hotend_offset[Y_AXIS][extruder] += m.pos_error[Y_AXIS];
+    #endif
+    hotend_offset[Z_AXIS][extruder] += m.pos_error[Z_AXIS];
+
+    normalize_hotend_offsets();
+  #endif
+
+  // Correct for positional error, so the object
+  // is at the known actual spot
+  planner.synchronize();
+  #if HAS_X_CENTER
+    update_measurements(m, X_AXIS);
+  #endif
+  #if HAS_Y_CENTER
+    update_measurements(m, Y_AXIS);
+  #endif
+  update_measurements(m, Z_AXIS);
+
+  sync_plan_position();
+}
+
+/**
+ * Probe around the calibration object for all toolheads, adjusting the coordinate
+ * system for the first nozzle and the nozzle offset for subsequent nozzles.
+ *
+ *   m              in/out - Measurement record, updated with new readings
+ *   uncertainty    in     - How far away from the object to begin probing
+ */
+inline void calibrate_all_toolheads(measurements_t &m, const float uncertainty) {
+  TEMPORARY_BACKLASH_STATE(true);
+  TEMPORARY_BACKLASH_SMOOTHING(0);
+
+  HOTEND_LOOP() calibrate_toolhead(m, uncertainty, e);
+
+  #if HOTENDS > 1
+    normalize_hotend_offsets();
+    set_nozzle(m, 0);
+  #endif
+}
+
+/**
+ * Perform a full auto-calibration routine:
+ *
+ *   1) For each nozzle, touch top and sides of object to determine object position and
+ *      nozzle offsets. Do a fast but rough search over a wider area.
+ *   2) With the first nozzle, touch top and sides of object to determine backlash values
+ *      for all axis (if BACKLASH_GCODE is enabled)
+ *   3) For each nozzle, touch top and sides of object slowly to determine precise
+ *      position of object. Adjust coordinate system and nozzle offsets so probed object
+ *      location corresponds to known object location with a high degree of precision.
+ */
+inline void calibrate_all() {
+  measurements_t m;
+
+  #if HOTENDS > 1
+    reset_nozzle_offsets();
+  #endif
+
+  TEMPORARY_BACKLASH_STATE(true);
+  TEMPORARY_BACKLASH_SMOOTHING(0);
+
+
+  /* Do a fast and rough calibration of the toolheads */
+  calibrate_all_toolheads(m, CALIBRATION_MEASUREMENT_UNKNOWN);
+
+  #if ENABLED(BACKLASH_GCODE)
+    calibrate_backlash(m, CALIBRATION_MEASUREMENT_UNCERTAIN);
+  #endif
+
+  /* Cycle the toolheads so the servos settle into their "natural" positions */
+  #if HOTENDS > 1
+    HOTEND_LOOP() set_nozzle(m, e);
+  #endif
+
+  /* Do a slow and precise calibration of the toolheads */
+  calibrate_all_toolheads(m, CALIBRATION_MEASUREMENT_UNCERTAIN);
+
+  move_to(X_AXIS, 150); // Park nozzle away from calibration object
+}
+
+/**
+ * G425: Perform calibration with calibration object.
+ *
+ *   B           - Perform calibration of backlash only.
+ *   T<extruder> - Perform calibration of toolhead only.
+ *   V           - Probe object and print position, error, backlash and hotend offset.
+ *   U           - Uncertainty, how far to start probe away from the object (mm)
+ *
+ *   no args     - Perform entire calibration sequence (backlash + position on all toolheads)
+ */
+void GcodeSuite::G425() {
+  if (axis_unhomed_error()) return;
+
+  measurements_t m;
+
+  float uncertainty = parser.seenval('U') ? parser.value_float() : CALIBRATION_MEASUREMENT_UNCERTAIN;
+
+  if (parser.seen('B'))
+    calibrate_backlash(m, uncertainty);
+  else if (parser.seen('T'))
+    calibrate_toolhead(m, uncertainty, parser.has_value() ? parser.value_int() : active_extruder);
+  #if ENABLED(CALIBRATION_REPORTING)
+    else if (parser.seen('V')) {
+      probe_sides(m, uncertainty);
+      SERIAL_EOL();
+      report_measured_faces(m);
+      report_measured_center(m);
+      report_measured_backlash(m);
+      report_measured_nozzle_dimensions(m);
+      report_measured_positional_error(m);
+      #if HOTENDS > 1
+        normalize_hotend_offsets();
+        report_hotend_offsets();
+      #endif
+    }
+  #endif
+  else
+    calibrate_all();
+}
+
+#endif // CALIBRATION_GCODE

Marlin/src/gcode/gcode.cpp

@@ -270,6 +270,10 @@ void GcodeSuite::process_parsed_command(
         case 42: G42(); break;                                    // G42: Coordinated move to a mesh point
       #endif
 
+      #if ENABLED(CALIBRATION_GCODE)
+        case 425: G425(); break;                                  // G425: Perform calibration with calibration cube
+      #endif
+
       #if ENABLED(DEBUG_GCODE_PARSER)
         case 800: parser.debug(); break;                          // G800: GCode Parser Test for G
       #endif

Marlin/src/gcode/gcode.h

@@ -436,6 +436,10 @@ private:
 
   static void G92();
 
+  #if ENABLED(CALIBRATION_GCODE)
+    static void G425();
+  #endif
+
   #if HAS_RESUME_CONTINUE
     static void M0_M1();
   #endif

Marlin/src/inc/Conditionals_post.h

@@ -888,6 +888,7 @@
 #define HAS_Z3_MIN (PIN_EXISTS(Z3_MIN))
 #define HAS_Z3_MAX (PIN_EXISTS(Z3_MAX))
 #define HAS_Z_MIN_PROBE_PIN (PIN_EXISTS(Z_MIN_PROBE))
+#define HAS_CALIBRATION_PIN (PIN_EXISTS(CALIBRATION))
 
 // ADC Temp Sensors (Thermistor or Thermocouple with amplifier ADC interface)
 #define HAS_ADC_TEST(P) (PIN_EXISTS(TEMP_##P) && TEMP_SENSOR_##P != 0 && DISABLED(HEATER_##P##_USES_MAX6675))

Marlin/src/module/endstops.cpp

@@ -218,6 +218,16 @@ void Endstops::init() {
     #endif
   #endif
 
+  #if HAS_CALIBRATION_PIN
+    #if ENABLED(CALIBRATION_PIN_PULLUP)
+      SET_INPUT_PULLUP(CALIBRATION_PIN);
+    #elif ENABLED(CALIBRATION_PIN_PULLDOWN)
+      SET_INPUT_PULLDOWN(CALIBRATION_PIN);
+    #else
+      SET_INPUT(CALIBRATION_PIN);
+    #endif
+  #endif
+
   #if ENABLED(Z_MIN_PROBE_ENDSTOP)
     #if ENABLED(ENDSTOPPULLUP_ZMIN_PROBE)
       SET_INPUT_PULLUP(Z_MIN_PROBE_PIN);

Marlin/src/module/endstops.h

@@ -97,6 +97,8 @@ class Endstops {
       );
     }
 
+    static inline bool global_enabled() { return enabled_globally; }
+
     /**
      * Periodic call to poll endstops if required. Called from temperature ISR
      */
@@ -173,3 +175,17 @@ class Endstops {
 };
 
 extern Endstops endstops;
+
+/**
+ * A class to save and change the endstop state,
+ * then restore it when it goes out of scope.
+ */
+class TemporaryGlobalEndstopsState {
+  bool saved;
+
+  public:
+    TemporaryGlobalEndstopsState(const bool enable) : saved(endstops.global_enabled()) {
+      endstops.enable_globally(enable);
+    }
+    ~TemporaryGlobalEndstopsState() { endstops.enable_globally(saved); }
+};

buildroot/share/tests/teensy35_tests

@@ -20,7 +20,7 @@ opt_set TEMP_SENSOR_0 1
 opt_set TEMP_SENSOR_1 5
 opt_set TEMP_SENSOR_BED 1
 opt_enable REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER SDSUPPORT \
-           FILAMENT_WIDTH_SENSOR FILAMENT_LCD_DISPLAY \
+           FILAMENT_WIDTH_SENSOR FILAMENT_LCD_DISPLAY CALIBRATION_GCODE \
            FIX_MOUNTED_PROBE Z_SAFE_HOMING AUTO_BED_LEVELING_BILINEAR Z_MIN_PROBE_REPEATABILITY_TEST DEBUG_LEVELING_FEATURE \
            BABYSTEPPING BABYSTEP_XY BABYSTEP_ZPROBE_OFFSET BABYSTEP_ZPROBE_GFX_OVERLAY \
            PRINTCOUNTER NOZZLE_PARK_FEATURE NOZZLE_CLEAN_FEATURE SLOW_PWM_HEATERS PIDTEMPBED EEPROM_SETTINGS INCH_MODE_SUPPORT TEMPERATURE_UNITS_SUPPORT M100_FREE_MEMORY_WATCHER \