homing.cfg

# Note you may need to add the following to your printer.cfg somewhere (without the comments of course) for the Kinematic position stuff below to work.
#[force_move]
#enable_force_move: True


[gcode_macro _HOME_X]
gcode:
    # Home
    {% set RUN_CURRENT_X = printer.configfile.settings['tmc2209 stepper_x'].run_current|float %}
    {% set RUN_CURRENT_Y = printer.configfile.settings['tmc2209 stepper_y'].run_current|float %}
    {% set HOME_CURRENT = 0.49 %}
    SET_TMC_CURRENT STEPPER=stepper_x CURRENT={HOME_CURRENT}
    SET_TMC_CURRENT STEPPER=stepper_y CURRENT={HOME_CURRENT}
    
    SET_KINEMATIC_POSITION X=15
    G91
    G1 X-15 F1200
    
    G4 P2000
    G28 X
    
    # Move away
    G91
    G1 X-15 F1200
    
    SET_TMC_CURRENT STEPPER=stepper_x CURRENT={RUN_CURRENT_X}
    SET_TMC_CURRENT STEPPER=stepper_y CURRENT={RUN_CURRENT_Y}

[gcode_macro _HOME_Y]
gcode:
    {% set RUN_CURRENT_X = printer.configfile.settings['tmc2209 stepper_x'].run_current|float %}
    {% set RUN_CURRENT_Y = printer.configfile.settings['tmc2209 stepper_y'].run_current|float %}
    {% set HOME_CURRENT = 0.49 %}
    SET_TMC_CURRENT STEPPER=stepper_x CURRENT={HOME_CURRENT}
    SET_TMC_CURRENT STEPPER=stepper_y CURRENT={HOME_CURRENT}
    
    SET_KINEMATIC_POSITION Y=15
    G91
    G1 Y-15 F1200
    G4 P2000
    # Home
    G28 Y
    # Move away
    G91
    G1 Y-15 F1200

    # Wait just a second… (give StallGuard registers time to clear)
    SET_TMC_CURRENT STEPPER=stepper_x CURRENT={RUN_CURRENT_X}
    SET_TMC_CURRENT STEPPER=stepper_y CURRENT={RUN_CURRENT_Y}

[homing_override]
axes: xyz
gcode:
  {% set home_all = 'X' not in params and 'Y' not in params and 'Z' not in params %}

  SET_KINEMATIC_POSITION Z=1
  G1 Z4 F1200

  {% if home_all or 'X' in params %}
    _HOME_X
  {% endif %}
  
  {% if home_all or 'Y' in params %}
    _HOME_Y
  {% endif %}
  
  {% if home_all or 'Z' in params %}

    G90
    G1 X175 Y175 F15000

    G28 Z

    G1 Z10 F1500
  {% endif %}


[gcode_macro _CG28]
description: Homing only if necessary
gcode:
    {% if "xyz" not in printer.toolhead.homed_axes %}
        G28
    {% endif %}