#define Z_PROBE_SWITCHING_DISTANCE 1         <<<<<<<set this to 3, gives probe a bit more chance to untrigger

#define Z_PROBE_Z_OFFSET 0

#define MULTI_ZENDSTOP_HOMING 0

#define ENDSTOP_PULLUP_X_MIN true

#define EXTRUDER_0_AUTO_FAN_PIN -1

  #define  MASK(PIN)    (1 << PIN)

I would check the rambo documentation for it. In our regular config file it reads//#define MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)

I uploaded the Repetier firmware to a hictop prusa i3 and the z-axis settings in the old firmware from marlin was #define DEFAULT_AXIS_STEPS_PER_UNIT   {80,80,398,94.4962144}

I uploaded the Repetier firmware to a hictop prusa i3 and the z-axis settings in the old firmware from marlin was #define DEFAULT_AXIS_STEPS_PER_UNIT   {80,80,398,94.4962144}

I uploaded the Repetier firmware to a hictop prusa i3 and the z-axis settings in the old firmware from marlin was #define DEFAULT_AXIS_STEPS_PER_UNIT   {80,80,398,94.4962144}

#define DRIVE_SYSTEM 3

#define CASE_LIGHTS_PIN  ORIG_FAN2_PIN

Low memory is normal with nonlinear movements as it needs much more ram. Make sure to have 900-1000 bytes free and it should work. If not reduce#define DELTASEGMENTS_PER_PRINTLINE 24

#define Y_MAX_LENGTH 217 - ENDSTOP_Y_BACK_ON_HOME

Add in manual additions the line#define FAST_COREXYZ

Add in manual additions the line#define FAST_COREXYZ

#define CONFIGURATION_H

If you are doing z max homing you can adjust z length in eeprom to get lower. For z min homing make sure#define ENDSTOP_Z_BACK_ON_HOME 0

Simply put#define MM_PER_ARC_SEGMENT 0.05

if you mean opposite  after power on   just change from #define CASE_LIGHT_DEFAULT_ON 0   to #define CASE_LIGHT_DEFAULT_ON 1   in configuration.h