Be careful, this is a modification that requires you to change your 3D printer motherboard.

Attention: You must print this part with 100% infill.

The settings below will help you to configure Marlin:

#define X_MIN_ENDSTOP_INVERTING true#define Y_MIN_ENDSTOP_INVERTING true#define Z_MIN_ENDSTOP_INVERTING true#define Z_MIN_PROBE_ENDSTOP_INVERTING false#define Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN#define USE_XMIN_PLUG#define USE_YMIN_PLUG#define USE_ZMIN_PLUG#define BLTOUCH#define X_PROBE_OFFSET_FROM_EXTRUDER -35#define Y_PROBE_OFFSET_FROM_EXTRUDER -5.5#define Z_PROBE_OFFSET_FROM_EXTRUDER 0#define MULTIPLE_PROBING 2#define X_BED_SIZE 300 // Size for Alfawise U20#define Y_BED_SIZE 300 // Size for Alfawise U20#define Z_MAX_POS 400 // Size for Alfawise U20#define AUTO_BED_LEVELING_BILINEAR#define GRID_MAX_POINTS_X 5#define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X#define Z_SAFE_HOMING#define EEPROM_SETTINGS#define NUM_SERVOS 1#define SERVO_DELAY { 300 }