Improve Renkforce configs (#16417)

config/examples/Renkforce/RF100/Configuration.h

 #define KILL_PIN 64
 
 // Name displayed in the LCD "Ready" message and Info menu
-//#define CUSTOM_MACHINE_NAME "RF100"
+#define CUSTOM_MACHINE_NAME "RF100"
 
 // Printer's unique ID, used by some programs to differentiate between machines.
 // Choose your own or use a service like http://www.uuidgenerator.net/version4
  * Override with M92
  *                                      X, Y, Z, E0 [, E1[, E2...]]
  */
-#define DEFAULT_AXIS_STEPS_PER_UNIT   { 78.82, 78.82, 800, 115 }
+#define DEFAULT_AXIS_STEPS_PER_UNIT   { 78.82, 78.82, 800, 116 }
 
 /**
  * Default Max Feed Rate (mm/s)
 
 //#define UNKNOWN_Z_NO_RAISE // Don't raise Z (lower the bed) if Z is "unknown." For beds that fall when Z is powered off.
 
-//#define Z_HOMING_HEIGHT 4  // (mm) Minimal Z height before homing (G28) for Z clearance above the bed, clamps, ...
+#define Z_HOMING_HEIGHT 4  // (mm) Minimal Z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
 // Direction of endstops when homing; 1=MAX, -1=MIN

config/examples/Renkforce/RF100XL/Configuration.h

 #define KILL_PIN 64
 
 // Name displayed in the LCD "Ready" message and Info menu
-//#define CUSTOM_MACHINE_NAME "RF100"
+#define CUSTOM_MACHINE_NAME "RF100 XL"
 
 // Printer's unique ID, used by some programs to differentiate between machines.
 // Choose your own or use a service like http://www.uuidgenerator.net/version4
  * Override with M92
  *                                      X, Y, Z, E0 [, E1[, E2...]]
  */
-#define DEFAULT_AXIS_STEPS_PER_UNIT   { 78.82, 78.82, 800, 115 }
+#define DEFAULT_AXIS_STEPS_PER_UNIT   { 78.82, 78.82, 800, 116 }
 
 /**
  * Default Max Feed Rate (mm/s)
 
 //#define UNKNOWN_Z_NO_RAISE // Don't raise Z (lower the bed) if Z is "unknown." For beds that fall when Z is powered off.
 
-//#define Z_HOMING_HEIGHT 4  // (mm) Minimal Z height before homing (G28) for Z clearance above the bed, clamps, ...
+#define Z_HOMING_HEIGHT 4  // (mm) Minimal Z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
 // Direction of endstops when homing; 1=MAX, -1=MIN

config/examples/Renkforce/RF100v2/Configuration.h

 #define KILL_PIN 64
 
 // Name displayed in the LCD "Ready" message and Info menu
-//#define CUSTOM_MACHINE_NAME "RF100"
+#define CUSTOM_MACHINE_NAME "RF100"
 
 // Printer's unique ID, used by some programs to differentiate between machines.
 // Choose your own or use a service like http://www.uuidgenerator.net/version4
  * Override with M92
  *                                      X, Y, Z, E0 [, E1[, E2...]]
  */
-#define DEFAULT_AXIS_STEPS_PER_UNIT   { 78.82, 78.82, 800, 115 }
+#define DEFAULT_AXIS_STEPS_PER_UNIT   { 78.82, 78.82, 800, 116 }
 
 /**
  * Default Max Feed Rate (mm/s)
 
 //#define UNKNOWN_Z_NO_RAISE // Don't raise Z (lower the bed) if Z is "unknown." For beds that fall when Z is powered off.
 
-//#define Z_HOMING_HEIGHT 4  // (mm) Minimal Z height before homing (G28) for Z clearance above the bed, clamps, ...
+#define Z_HOMING_HEIGHT 4  // (mm) Minimal Z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
 // Direction of endstops when homing; 1=MAX, -1=MIN