### Homing

[gcode_macro SET_CENTER_KINEMATIC_POSITION]
description: FOR DEBUGGING PURPOSES ONLY. Sets the internal printer kinematic state to the center of all axes regardless of actual physical position.
gcode:
	RESPOND MSG="WARNING: ONLY USE SET_CENTER_KINEMATIC_POSITION FOR DEBUGGING PURPOSES. YOU'RE OVERRIDING THE INTERNAL POSITIONING STATE OF THE PRINTER. PROCEED WITH CAUTION AND DO A PROPER G28 WHEN DONE."
	SET_GCODE_VARIABLE MACRO=MAYBE_HOME VARIABLE=is_kinematic_position_overriden VALUE=True
	SET_KINEMATIC_POSITION X={printer.toolhead.axis_maximum.x / 2} Y={printer.toolhead.axis_maximum.y / 2} Z={printer.toolhead.axis_maximum.z / 2}

[gcode_macro MAYBE_HOME]
description: Only home unhomed axis
variable_is_kinematic_position_overriden: False
gcode:
  {% if printer["gcode_macro MAYBE_HOME"].is_kinematic_position_overriden|lower == 'true' %}
    RESPOND MSG="SET_CENTER_KINEMATIC_POSITION has been abused. Homing all axes. Please refrain from using SET_CENTER_KINEMATIC_POSITION outside of debugging purposes."
    G28
    SET_GCODE_VARIABLE MACRO=MAYBE_HOME VARIABLE=is_kinematic_position_overriden VALUE=False
  {% else %}
    {% set axes = '' %}
    {% set isHomed = true %}
    {% set axesToHome = '' %}
    {% if params.X is defined %}
      {% set axes = axes ~ 'X ' %}
      {% if 'x' not in printer.toolhead.homed_axes %}
        {% set isHomed = false %}
        {% set axesToHome = axesToHome ~ 'X ' %}
      {% endif %}
    {% endif %}
    {% if params.Y is defined %}
      {% set axes = axes ~ 'Y ' %}
      {% if 'y' not in printer.toolhead.homed_axes %}
        {% set isHomed = false %}
        {% set axesToHome = axesToHome ~ 'Y ' %}
      {% endif %}
    {% endif %}
    {% if params.Z is defined %}
      {% set axes = axes ~ 'Z ' %}
      {% if 'z' not in printer.toolhead.homed_axes %}
        {% set isHomed = false %}
        {% set axesToHome = axesToHome ~ 'Z ' %}
      {% endif %}
    {% endif %}
    {% if params.X is not defined and params.Y is not defined and params.Z is not defined %}
      {% set axes = '' %}
      {% if 'x' not in printer.toolhead.homed_axes %}
        {% set isHomed = false %}
        {% set axesToHome = axesToHome ~ 'X ' %}
      {% endif %}
      {% if 'y' not in printer.toolhead.homed_axes %}
        {% set isHomed = false %}
        {% set axesToHome = axesToHome ~ 'Y ' %}
      {% endif %}
      {% if 'z' not in printer.toolhead.homed_axes %}
        {% set isHomed = false %}
        {% set axesToHome = axesToHome ~ 'Z ' %}
      {% endif %}
    {% endif %}
    {% if isHomed is false %}
      M117 Homing {axesToHome}
      RESPOND MSG="Homing {axesToHome}"
      G28 {axesToHome}
    {% else %}
      RESPOND MSG="All requested axes already homed, skipping.."
    {% endif %}
  {% endif %}