✨ Z_SERVO_DEACTIVATE_AFTER_STOW (MarlinFirmware#24215)

Author: filippor

Marlin/Configuration.h

@@ -1387,10 +1387,13 @@
 /**
  * Z Servo Probe, such as an endstop switch on a rotating arm.
  */
-//#define Z_PROBE_SERVO_NR 0          // Defaults to SERVO 0 connector.
-//#define Z_SERVO_ANGLES { 70, 0 }    // Z Servo Deploy and Stow angles
-//#define Z_SERVO_MEASURE_ANGLE 45    // Use if the servo must move to a "free" position for measuring after deploy.
-//#define Z_SERVO_INTERMEDIATE_STOW   // Stow the probe between points.
+//#define Z_PROBE_SERVO_NR 0
+#ifdef Z_PROBE_SERVO_NR
+  //#define Z_SERVO_ANGLES { 70, 0 }      // Z Servo Deploy and Stow angles
+  //#define Z_SERVO_MEASURE_ANGLE 45      // Use if the servo must move to a "free" position for measuring after deploy
+  //#define Z_SERVO_INTERMEDIATE_STOW     // Stow the probe between points
+  //#define Z_SERVO_DEACTIVATE_AFTER_STOW // Deactivate the servo when probe is stowed
+#endif
 
 /**
  * The BLTouch probe uses a Hall effect sensor and emulates a servo.

Marlin/src/module/probe.cpp

@@ -403,13 +403,16 @@ FORCE_INLINE void probe_specific_action(const bool deploy) {
 
   #elif HAS_Z_SERVO_PROBE
 
+    // i.e., deploy ? DEPLOY_Z_SERVO() : STOW_Z_SERVO();
     servo[Z_PROBE_SERVO_NR].move(servo_angles[Z_PROBE_SERVO_NR][deploy ? 0 : 1]);
 
     #ifdef Z_SERVO_MEASURE_ANGLE
       // After deploy move back to the measure angle...
-      if (deploy) MOVE_SERVO(Z_PROBE_SERVO_NR, Z_SERVO_MEASURE_ANGLE);
+      if (deploy) servo[Z_PROBE_SERVO_NR].move(Z_SERVO_MEASURE_ANGLE);
     #endif
 
+    if (TERN0(Z_SERVO_DEACTIVATE_AFTER_STOW, !deploy)) servo[Z_PROBE_SERVO_NR].detach();
+
   #elif ANY(TOUCH_MI_PROBE, Z_PROBE_ALLEN_KEY, MAG_MOUNTED_PROBE)
 
     deploy ? run_deploy_moves() : run_stow_moves();
@@ -950,6 +953,8 @@ float Probe::probe_at_point(const_float_t rx, const_float_t ry, const ProbePtRai
      * homing has been done - no homing with z-probe without init!
      */
     STOW_Z_SERVO();
+
+    TERN_(Z_SERVO_DEACTIVATE_AFTER_STOW, servo[Z_PROBE_SERVO_NR].detach());
   }
 
 #endif // HAS_Z_SERVO_PROBE

buildroot/tests/mega2560

@@ -63,13 +63,13 @@ opt_set MOTHERBOARD BOARD_AZTEEG_X3_PRO NUM_SERVOS 1 \
         NUM_RUNOUT_SENSORS 5 FIL_RUNOUT2_PIN 44 FIL_RUNOUT3_PIN 45 FIL_RUNOUT4_PIN 46 FIL_RUNOUT5_PIN 47 \
         FIL_RUNOUT3_STATE HIGH FILAMENT_RUNOUT_SCRIPT '"M600 T%c"'
 opt_enable VIKI2 BOOT_MARLIN_LOGO_ANIMATED SDSUPPORT AUTO_REPORT_SD_STATUS \
-           Z_PROBE_SERVO_NR Z_SERVO_ANGLES DEACTIVATE_SERVOS_AFTER_MOVE \
+           Z_PROBE_SERVO_NR Z_SERVO_ANGLES Z_SERVO_MEASURE_ANGLE DEACTIVATE_SERVOS_AFTER_MOVE Z_SERVO_DEACTIVATE_AFTER_STOW \
            AUTO_BED_LEVELING_3POINT DEBUG_LEVELING_FEATURE PROBE_PT_1 PROBE_PT_2 PROBE_PT_3 \
            EEPROM_SETTINGS EEPROM_CHITCHAT M114_DETAIL AUTO_REPORT_POSITION \
            NO_VOLUMETRICS EXTENDED_CAPABILITIES_REPORT AUTO_REPORT_TEMPERATURES AUTOTEMP G38_PROBE_TARGET JOYSTICK \
            DIRECT_STEPPING DETECT_BROKEN_ENDSTOP \
            FILAMENT_RUNOUT_SENSOR NOZZLE_PARK_FEATURE ADVANCED_PAUSE_FEATURE Z_SAFE_HOMING FIL_RUNOUT3_PULLUP
-exec_test $1 $2 "Multiple runout sensors (x5) | Distinct runout states" "$3"
+exec_test $1 $2 "Z Servo Probe | Multiple runout sensors (x5)" "$3"
 
 
 #