Implement BABYSTEPPING for COREXY and COREXZ

Marlin/Conditionals.h

   #define Z_MAX_LENGTH (Z_MAX_POS - (Z_MIN_POS))
 
   /**
+   * CoreXY and CoreXZ
+   */
+  #if ENABLED(COREXY)
+    #define CORE_AXIS_2 B_AXIS
+    #define CORE_AXIS_3 Z_AXIS
+  #elif ENABLED(COREXZ)
+    #define CORE_AXIS_2 C_AXIS
+    #define CORE_AXIS_3 Y_AXIS
+  #endif
+
+  /**
    * SCARA
    */
   #if ENABLED(SCARA)

Marlin/Configuration_adv.h

 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
   #define BABYSTEP_XY  //not only z, but also XY in the menu. more clutter, more functions
-                       //not implemented for CoreXY and deltabots!
+                       //not implemented for deltabots!
   #define BABYSTEP_INVERT_Z false  //true for inverse movements in Z
   #define BABYSTEP_MULTIPLICATOR 1 //faster movements
 #endif

Marlin/SanityCheck.h

  * Babystepping
  */
 #if ENABLED(BABYSTEPPING)
-  #if ENABLED(COREXY) && ENABLED(BABYSTEP_XY)
-    #error BABYSTEPPING only implemented for Z axis on CoreXY.
-  #endif
   #if ENABLED(SCARA)
     #error BABYSTEPPING is not implemented for SCARA yet.
   #endif

Marlin/example_configurations/Felix/Configuration_adv.h

 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
   #define BABYSTEP_XY  //not only z, but also XY in the menu. more clutter, more functions
-                       //not implemented for CoreXY and deltabots!
+                       //not implemented for deltabots!
   #define BABYSTEP_INVERT_Z false  //true for inverse movements in Z
   #define BABYSTEP_MULTIPLICATOR 1 //faster movements
 #endif

Marlin/example_configurations/Hephestos/Configuration_adv.h

 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
   #define BABYSTEP_XY  //not only z, but also XY in the menu. more clutter, more functions
-                       //not implemented for CoreXY and deltabots!
+                       //not implemented for deltabots!
   #define BABYSTEP_INVERT_Z false  //true for inverse movements in Z
   #define BABYSTEP_MULTIPLICATOR 1 //faster movements
 #endif

Marlin/example_configurations/Hephestos_2/Configuration_adv.h

 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
   #define BABYSTEP_XY  //not only z, but also XY in the menu. more clutter, more functions
-                       //not implemented for CoreXY and deltabots!
+                       //not implemented for deltabots!
   #define BABYSTEP_INVERT_Z false  //true for inverse movements in Z
   #define BABYSTEP_MULTIPLICATOR 1 //faster movements
 #endif

Marlin/example_configurations/K8200/Configuration_adv.h

 #define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
   #define BABYSTEP_XY  //not only z, but also XY in the menu. more clutter, more functions
-                       //not implemented for CoreXY and deltabots!
+                       //not implemented for deltabots!
   #define BABYSTEP_INVERT_Z false  //true for inverse movements in Z
   #define BABYSTEP_MULTIPLICATOR 1 //faster movements
 #endif

Marlin/example_configurations/RigidBot/Configuration_adv.h

 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
   #define BABYSTEP_XY  //not only z, but also XY in the menu. more clutter, more functions
-                       //not implemented for CoreXY and deltabots!
+                       //not implemented for deltabots!
   #define BABYSTEP_INVERT_Z false  //true for inverse movements in Z
   #define BABYSTEP_MULTIPLICATOR 1 //faster movements
 #endif

Marlin/example_configurations/SCARA/Configuration_adv.h

 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
   #define BABYSTEP_XY  //not only z, but also XY in the menu. more clutter, more functions
-                       //not implemented for CoreXY and deltabots!
+                       //not implemented for deltabots!
   #define BABYSTEP_INVERT_Z false  //true for inverse movements in Z
   #define BABYSTEP_MULTIPLICATOR 1 //faster movements
 #endif

Marlin/example_configurations/TAZ4/Configuration_adv.h

 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
   #define BABYSTEP_XY  //not only z, but also XY in the menu. more clutter, more functions
-                       //not implemented for CoreXY and deltabots!
+                       //not implemented for deltabots!
   #define BABYSTEP_INVERT_Z false  //true for inverse movements in Z
   #define BABYSTEP_MULTIPLICATOR 1 //faster movements
 #endif

Marlin/example_configurations/WITBOX/Configuration_adv.h

 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
   #define BABYSTEP_XY  //not only z, but also XY in the menu. more clutter, more functions
-                       //not implemented for CoreXY and deltabots!
+                       //not implemented for deltabots!
   #define BABYSTEP_INVERT_Z false  //true for inverse movements in Z
   #define BABYSTEP_MULTIPLICATOR 1 //faster movements
 #endif

Marlin/example_configurations/delta/biv2.5/Configuration_adv.h

 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
   #define BABYSTEP_XY  //not only z, but also XY in the menu. more clutter, more functions
-                       //not implemented for CoreXY and deltabots!
+                       //not implemented for deltabots!
   #define BABYSTEP_INVERT_Z false  //true for inverse movements in Z
   #define BABYSTEP_MULTIPLICATOR 1 //faster movements
 #endif

Marlin/example_configurations/delta/generic/Configuration_adv.h

 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
   #define BABYSTEP_XY  //not only z, but also XY in the menu. more clutter, more functions
-                       //not implemented for CoreXY and deltabots!
+                       //not implemented for deltabots!
   #define BABYSTEP_INVERT_Z false  //true for inverse movements in Z
   #define BABYSTEP_MULTIPLICATOR 1 //faster movements
 #endif

Marlin/example_configurations/delta/kossel_mini/Configuration_adv.h

 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
   #define BABYSTEP_XY  //not only z, but also XY in the menu. more clutter, more functions
-                       //not implemented for CoreXY and deltabots!
+                       //not implemented for deltabots!
   #define BABYSTEP_INVERT_Z false  //true for inverse movements in Z
   #define BABYSTEP_MULTIPLICATOR 1 //faster movements
 #endif

Marlin/example_configurations/delta/kossel_pro/Configuration_adv.h

 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
   #define BABYSTEP_XY  //not only z, but also XY in the menu. more clutter, more functions
-                       //not implemented for CoreXY and deltabots!
+                       //not implemented for deltabots!
   #define BABYSTEP_INVERT_Z false  //true for inverse movements in Z
   #define BABYSTEP_MULTIPLICATOR 1 //faster movements
 #endif

Marlin/example_configurations/delta/kossel_xl/Configuration_adv.h

 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
   #define BABYSTEP_XY  //not only z, but also XY in the menu. more clutter, more functions
-                       //not implemented for CoreXY and deltabots!
+                       //not implemented for deltabots!
   #define BABYSTEP_INVERT_Z false  //true for inverse movements in Z
   #define BABYSTEP_MULTIPLICATOR 1 //faster movements
 #endif

Marlin/example_configurations/makibox/Configuration_adv.h

 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
   #define BABYSTEP_XY  //not only z, but also XY in the menu. more clutter, more functions
-                       //not implemented for CoreXY and deltabots!
+                       //not implemented for deltabots!
   #define BABYSTEP_INVERT_Z false  //true for inverse movements in Z
   #define BABYSTEP_MULTIPLICATOR 1 //faster movements
 #endif

Marlin/example_configurations/tvrrug/Round2/Configuration_adv.h

 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
   #define BABYSTEP_XY  //not only z, but also XY in the menu. more clutter, more functions
-                       //not implemented for CoreXY and deltabots!
+                       //not implemented for deltabots!
   #define BABYSTEP_INVERT_Z false  //true for inverse movements in Z
   #define BABYSTEP_MULTIPLICATOR 1 //faster movements
 #endif

Marlin/stepper.cpp

   }
 }
 
-#if ENABLED(COREXY)
-  #define CORE_AXIS_2 B_AXIS
-#elif ENABLED(COREXZ)
-  #define CORE_AXIS_2 C_AXIS
-#endif
-
 void enable_endstops(bool check) { check_endstops = check; }
 
 // Check endstops - Called from ISR!

Marlin/ultralcd.cpp

   lcd_return_to_status();
 }
 
-
 #if ENABLED(BABYSTEPPING)
 
-  static void _lcd_babystep(int axis, const char* msg) {
+  static void _lcd_babystep(const int axis, const char* msg) {
     ENCODER_DIRECTION_NORMAL(); 
     if (encoderPosition != 0) {
-      babystepsTodo[axis] += (BABYSTEP_MULTIPLICATOR) * (int)encoderPosition;
       encoderPosition = 0;
       lcdDrawUpdate = 1;
+      int distance =  (int)encoderPosition * BABYSTEP_MULTIPLICATOR;
+      #if ENABLED(COREXY) || ENABLED(COREXZ)
+        #if ENABLED(BABYSTEP_XY)
+          switch(axis) {
+            case X_AXIS: // X on CoreXY and CoreXZ
+              babystepsTodo[A_AXIS] += distance * 2;
+              babystepsTodo[CORE_AXIS_2] += distance * 2;
+              break;
+            case CORE_AXIS_2: // Y on CoreXY, Z on CoreXZ
+              babystepsTodo[A_AXIS] += distance * 2;
+              babystepsTodo[CORE_AXIS_2] -= distance * 2;
+              break;
+            case CORE_AXIS_3: // Z on CoreXY, Y on CoreXZ
+              babystepsTodo[CORE_AXIS_3] += distance;
+              break;
+          }
+        #elif ENABLED(COREXZ)
+          babystepsTodo[A_AXIS] += distance * 2;
+          babystepsTodo[C_AXIS] -= distance * 2;
+        #else
+          babystepsTodo[Z_AXIS] += distance;
+        #endif
+      #else
+        babystepsTodo[axis] += distance;
+      #endif
     }
     if (lcdDrawUpdate) lcd_implementation_drawedit(msg, (char*)"");
     if (LCD_CLICKED) lcd_goto_previous_menu();
   }
-  static void lcd_babystep_x() { _lcd_babystep(X_AXIS, PSTR(MSG_BABYSTEPPING_X)); }
-  static void lcd_babystep_y() { _lcd_babystep(Y_AXIS, PSTR(MSG_BABYSTEPPING_Y)); }
+
+  #if ENABLED(BABYSTEP_XY)
+    static void lcd_babystep_x() { _lcd_babystep(X_AXIS, PSTR(MSG_BABYSTEPPING_X)); }
+    static void lcd_babystep_y() { _lcd_babystep(Y_AXIS, PSTR(MSG_BABYSTEPPING_Y)); }
+  #endif
   static void lcd_babystep_z() { _lcd_babystep(Z_AXIS, PSTR(MSG_BABYSTEPPING_Z)); }
 
 #endif //BABYSTEPPING