Anet A8 Servo Z-Endstop

thingiverse

The Z probe sits snugly between the radiator and the extruder fan. The microswitch, ground, and +5V supply all connect directly from the Z_MIN connector. Meanwhile, the control signal of the servo is taken from SERVO0_PIN 27 and can be found on the LCD pin 3 connector. My firmware settings (Marlin 1.1.x) are as follows: #define Z_MIN_ENDSTOP_INVERTING false #define Z_ENDSTOP_SERVO_NR 1 #define Z_SERVO_ANGLES {5,127} #define X_PROBE_OFFSET_FROM_EXTRUDER 30 #define Y_PROBE_OFFSET_FROM_EXTRUDER 27 #define Z_PROBE_OFFSET_FROM_EXTRUDER -0 #define Z_PROBE_SPEED_SLOW (Z_PROBE_SPEED_FAST * 3) #define MULTIPLE_PROBING 1 #define AUTO_BED_LEVELING_LINEAR #define LEFT_PROBE_BED_POSITION 180 #define RIGHT_PROBE_BED_POSITION 15 #define FRONT_PROBE_BED_POSITION 180 #define BACK_PROBE_BED_POSITION 15 #define Z_SAFE_HOMING #define NUM_SERVOS 0 Z offset is adjusted using M851 (Don't forget to save M500)