klipper-macros/macros/print/pause_resume.cfg

# PAUSE, RESUME, CANCEL_PRINT, M600 (based on the KlipperScreen recommended macros)
#
# Chain on this printer (AFC renames PAUSE/RESUME at startup):
#   PAUSE  -> AFC_PAUSE (saves position, z-hop) -> this PAUSE -> PAUSE_BASE
#   RESUME -> AFC_RESUME -> this RESUME -> HEAT_SOAK_RESUME -> _RESUME_PRINT
#             -> RESUME_BASE, then AFC restores the saved position
# RESUME is defined only here: heating/heat_soak.cfg used to define its own,
# which replaced this one completely (no unretract, no fan restore).

# https://klipperscreen.readthedocs.io/en/latest/macros/#recommended
[gcode_macro PAUSE]
description: Pause the actual running print
rename_existing: PAUSE_BASE
variable_saved_fan_speed: 0.0
variable_parked: False         # set by PAUSE, used by _RESUME_PRINT
gcode:
  {% if not printer.pause_resume.is_paused %}
    SET_GCODE_VARIABLE MACRO=PAUSE VARIABLE=saved_fan_speed VALUE={printer.fan.speed}
    # Pause first, so the saved state is the print position, then retract and park
    PAUSE_BASE
    _TOOLHEAD_PARK_PAUSE_CANCEL
    SET_GCODE_VARIABLE MACRO=PAUSE VARIABLE=parked VALUE=True
    # Set fan to S28 (28/255 ≈ 0.1098)
    M106 S28
  {% else %}
    PAUSE_BASE
  {% endif %}

[gcode_macro RESUME]
description: Resume the print (while HEAT_SOAK runs: skip the soak phase)
rename_existing: RESUME_BASE
gcode:
  HEAT_SOAK_RESUME ON_RESUME=_RESUME_PRINT {rawparams}

[gcode_macro _RESUME_PRINT]
description: Resume after PAUSE: unretract, restore the part fan, continue the print
gcode:
  {% set pause = printer["gcode_macro PAUSE"] %}
  {% set extrude = printer['gcode_macro _TOOLHEAD_PARK_PAUSE_CANCEL'].extrude %}
  #### get VELOCITY parameter if specified ####
  {% if 'VELOCITY' in params|upper %}
    {% set get_params = ('VELOCITY=' + params.VELOCITY)  %}
  {%else %}
    {% set get_params = "" %}
  {% endif %}
  ##### end of definitions #####
  # Only undo what PAUSE did; HEAT_SOAK pauses with PAUSE_BASE (no retract, no park)
  {% if pause.parked %}
    {% if printer.extruder.can_extrude|lower == 'true' %}
      M83
      G1 E{extrude} F2100
      {% if printer.gcode_move.absolute_extrude |lower == 'true' %} M82 {% endif %}
    {% else %}
      {action_respond_info("Extruder not hot enough")}
    {% endif %}

    # Restore saved fan speed
    {% set old_fan = pause.saved_fan_speed %}
    {% if old_fan > 0 %}
      M106 S{[(old_fan * 255)|int, 255]|min}
    {% else %}
      M107
    {% endif %}
    SET_GCODE_VARIABLE MACRO=PAUSE VARIABLE=parked VALUE=False
  {% endif %}

  RESUME_BASE {get_params}
  _status_printing

[gcode_macro _TOOLHEAD_PARK_PAUSE_CANCEL]
description: Helper: park toolhead used in PAUSE and CANCEL_PRINT
variable_extrude: 2.0
gcode:
  ##### set park positon for x and y #####
  # default is your max posion from your printer.cfg

  # {% set x_park = printer.toolhead.axis_maximum.x|float - 5.0 %}
  {% set x_park = 20.0 %}
  {% set y_park = printer.toolhead.axis_maximum.y|float - 5.0 %}
  {% set z_park_delta = 2.0 %}
  ##### calculate save lift position #####
  {% set max_z = printer.toolhead.axis_maximum.z|float %}
  {% set act_z = printer.toolhead.position.z|float %}
  {% if act_z < (max_z - z_park_delta) %}
    {% set z_safe = z_park_delta %}
  {% else %}
    {% set z_safe = max_z - act_z %}
  {% endif %}
  ##### end of definitions #####
  {% if printer.extruder.can_extrude|lower == 'true' %}
    M83
    G1 E-{extrude} F2100
    {% if printer.gcode_move.absolute_extrude |lower == 'true' %} M82 {% endif %}
  {% else %}
    {action_respond_info("Extruder not hot enough")}
  {% endif %}
  {% if "xyz" in printer.toolhead.homed_axes %}
    G91
    G1 Z{z_safe} F900
    G90
    G1 X{x_park} Y{y_park} F6000
    {% if printer.gcode_move.absolute_coordinates|lower == 'false' %} G91 {% endif %}
  {% else %}
    {action_respond_info("Printer not homed")}
  {% endif %}

[gcode_macro CANCEL_PRINT]
description: Cancel the actual running print
rename_existing: CANCEL_PRINT_BASE_KLIPPERSCREEN
variable_park: True
gcode:
  {% set pause = printer["gcode_macro PAUSE"] %}
  {% set park_retract = printer['gcode_macro _TOOLHEAD_PARK_PAUSE_CANCEL'].extrude %}
  ## Move head and retract only if not already in the pause state and park set to true

  {% if printer.pause_resume.is_paused|lower == 'false' and park|lower == 'true'%}
    _TOOLHEAD_PARK_PAUSE_CANCEL
  {% endif %}

  STOP_HEAT_SOAK
  CANCEL_PRINT_BASE_KLIPPERSCREEN
  # Same end-of-print retract as PRINT_END (skipped if the nozzle is already cold);
  # EXTRA: the park retract of PAUSE or of the park above, so PRINT_START undoes it too
  {% if printer.pause_resume.is_paused %}
    _NOZZLE_RETRACT EXTRA={park_retract if pause.parked else 0}
  {% elif park and printer.extruder.can_extrude %}
    _NOZZLE_RETRACT EXTRA={park_retract}
  {% else %}
    _NOZZLE_RETRACT
  {% endif %}
  # Same cleanup as PRINT_END: heaters incl. chamber heater, fan, flow, bdwidth
  _PRINT_CLEANUP
  SET_GCODE_VARIABLE MACRO=PAUSE VARIABLE=parked VALUE=False
  _status_ready

[gcode_macro M600]
#
# M600
# https://github.com/simplisticton/common-macros/tree/main
#
# Mimic Marlin's Pause for filament change command
description: Pause for filament change
gcode:
    PAUSE
    M117 Paused
    M118 Print paused for filament change... type "Resume" to continue