start_end.cfg

# Copyright (C) 2022 Justin Schuh <code@justinschuh.com>
#
# This file may be distributed under the terms of the GNU GPLv3 license.

[gcode_macro print_start]
description: Inserted by slicer at start of print.
  Usage: PRINT_START BED=<temp> EXTRUDER=<temp> [CHAMBER=<temp>]
                     [MESH_MIN=<x,y>] [MESH_MAX=<x,y>] [LAYERS=<num>]
                     [NOZZLE_SIZE=<mm>]
gcode:
  CHECK_KM_CONFIG # Need this in case startup errors were missed.

  M107 # Turn off part cooling fan in case it was on.
  SET_GCODE_VARIABLE MACRO=print_end VARIABLE=was_cancelled VALUE="{False}"
  CLEAR_PAUSE
  {% set BED = params.BED|default(params.BED_TEMP)|float %}
  {% set EXTRUDER = params.EXTRUDER|default(params.EXTRUDER_TEMP)|float %}
  {% set CHAMBER = params.CHAMBER|default(0)|float
                   if "chamber" in printer.heaters.available_heaters else 0.0 %}
  {% set settings = printer["gcode_macro print_start_set"].settings %}
  {% set MESH_MIN = params.MESH_MIN|default(settings.MESH_MIN)|default(None) %}
  {% set MESH_MAX = params.MESH_MAX|default(settings.MESH_MAX)|default(None) %}
  # Clear the print settings after they are no longer needed.
  SET_GCODE_VARIABLE MACRO=print_start_set VARIABLE=settings VALUE="{{}}"
  {% set LAYERS = params.LAYERS|default(settings.LAYERS)|default(0)|int %}
  {% set NOZZLE_SIZE = params.NOZZLE_SIZE|default(settings.NOZZLE_SIZE)|
         default(printer.configfile.settings.extruder.nozzle_diameter)|float %}
  {% set km = printer["gcode_macro _km_globals"] %}
  {% set actions_at_temp = km.start_level_bed_at_temp or
                           km.start_quad_gantry_level_at_temp or
                           km.start_z_tilt_adjust_at_temp %}
  # The bed started at no more than 0.2C below and 1.0C above the target temp.
  {% set bed_at_target = (BED + 0.4 - printer.heater_bed.temperature) |
                           abs <= 0.6 %}
  {% set bed_overshoot = (BED + (km.start_bed_heat_overshoot if
             (BED and not bed_at_target) else 0.0),
           printer.configfile.settings.heater_bed.max_temp ) | min %}

  INIT_LAYER_GCODE LAYERS="{LAYERS}"
  {% if CHAMBER > 0.0 %}
    M141 S{CHAMBER}
  {% endif %}
  # Start bed heating
  M140 S{bed_overshoot}
  {% if actions_at_temp %}
    # If we're going to run a bed level we either have a probing temp specified
    # or we heat the extruder part way to avoid oozing while probing.
    M104 S{km.start_extruder_probing_temp if km.start_extruder_probing_temp > 0
      else (km.start_extruder_preheat_scale * EXTRUDER)|round(0,'ceil')|int}
  {% else %}
    M104 S{EXTRUDER}
  {% endif %}
  # home all axes
  G28
  G90
  # Skip this if the bed was already at target when START_PRINT was called.
  {% if BED > 0.0 and not bed_at_target %}
    PARK
    # Overshoot the target a bit.
    M190 S{bed_overshoot}
    G4 P{km.start_bed_heat_delay / 2}
    M190 R{BED} # Settle down after the overshoot.
    G4 P{km.start_bed_heat_delay / 2}
  {% endif %}

  {% if CHAMBER > 0.0 %}
    _KM_PARK_IF_NEEDED HEATER="chamber" RANGE=ABOVE
    M191 S{CHAMBER}
  {% endif %}

  {% if BED > 0.0 and bed_at_target%}
    M190 R{BED} # Extra bed stabilization if we skipped it earlier.
  {% endif %}

  {% if actions_at_temp %}
    {% if km.start_extruder_probing_temp > 0 %}
      _KM_PARK_IF_NEEDED HEATER={printer.toolhead.extruder} RANGE=2
      M109 R{km.start_extruder_probing_temp}
    {% else %}
      M104 S{EXTRUDER} # set the final extruder target temperature
    {% endif %}
    {% if km.start_home_z_at_temp and not bed_at_target %}
      G28 Z # Re-home only the Z axis now that the bed has stabilized.
    {% endif %}
    {% if km.start_z_tilt_adjust_at_temp %}
      Z_TILT_ADJUST
    {% endif %}
    {% if km.start_quad_gantry_level_at_temp %}
      QUAD_GANTRY_LEVEL
    {% endif %}
    {% if km.start_level_bed_at_temp %}
      BED_MESH_CALIBRATE_FAST{% if MESH_MIN %} MESH_MIN={MESH_MIN}{% endif
                           %}{% if MESH_MAX %} MESH_MAX={MESH_MAX}{% endif %}
    {% endif %}
    {% if km.start_extruder_probing_temp > 0 %}
      M104 S{EXTRUDER} # set the final extruder target temperature
    {% endif %}
    G4
  {% endif %}
  # Wait for extruder to reach temperature
  _KM_PARK_IF_NEEDED HEATER={printer.toolhead.extruder} RANGE=ABOVE
  M109 S{EXTRUDER}
  # apply Z offset for bed surface (just in case it was reset).
  _APPLY_BED_SURFACE_OFFSET
  {% if km.start_gcode_before_print %}{ km.start_gcode_before_print }{% endif %}
  {% if km.start_purge_length > 0.0 %}
    DRAW_PURGE_LINE WIDTH="{NOZZLE_SIZE * 1.25}" HEIGHT="{NOZZLE_SIZE * 0.625
                    }"{% if MESH_MIN %} PRINT_MIN={MESH_MIN}{% endif
                    %}{% if MESH_MAX %} PRINT_MAX={MESH_MAX}{% endif %}
  {% endif %}

[gcode_macro _km_park_if_needed]
description: Parks the extruder if the current temperature of the supplied
  heater is not within the specified target range.
  Usage: _KM_PARK_IF_NEEDED HEATER=<heater> RANGE=[<percentage>|ABOVE|BELOW]
gcode:
  # This needs to get called as its own macro to get the current temp evaluated.
  {% set HEATER = params.HEATER %}
  {% set RANGE = (params.RANGE|default(1))|string|upper %}

  {% if printer[HEATER].target %}
    {% if RANGE == "ABOVE" %}
      {% if printer[HEATER].temperature < printer[HEATER].target %}
        PARK
      {% endif %}
    {% elif RANGE == "BELOW" %}
      {% if printer[HEATER].temperature > printer[HEATER].target %}
        PARK
      {% endif %}
    {% elif (printer[HEATER].temperature - printer[HEATER].target)|abs >
             (printer[HEATER].target * RANGE|float * 0.01)|abs %}
      PARK
    {% endif %}
  {% endif %}

[gcode_macro print_start_set]
description: Inserted by slicer to set values used by PRINT_START.
  Usage: PRINT_START_SET <VARIABLE>=<value>
variable_settings: {}
gcode:
  {%for k in params %}
    {% set dummy = settings.__setitem__(k|upper, params[k]) %}
  {% endfor %}

[gcode_macro print_end]
description: Inserted by slicer at end of print.
  Usage: PRINT_END
variable_was_cancelled: False
gcode:
  _KM_CHECK_IS_PRINTING
  SET_GCODE_VARIABLE MACRO=print_end VARIABLE=was_cancelled VALUE="{False}"
  SET_GCODE_VARIABLE MACRO=print_start_set VARIABLE=settings VALUE="{{}}"
  {% set km = printer["gcode_macro _km_globals"] %}
  {% set toolhead = printer.toolhead %}
  {% set max_x = km.print_max[0] %}
  {% set max_y = km.print_max[1] %}
  {% set max_z = toolhead.axis_maximum.z %}
  {% set is_homed = printer.toolhead.homed_axes | lower == "xyz" %}

  {% if printer.extruder.can_extrude %}
    # Wipe if we're not cancelling a paused print.
    {% if not printer.pause_resume.is_paused and is_homed and
          not was_cancelled %}
      {% set x_safe = (max_x - toolhead.position.x, 2.0)|min %}
      {% set y_safe = (max_y - toolhead.position.y, 2.0)|min %}
      {% set z_safe = (max_z - toolhead.position.z, 2.0)|min %}
      G91
      G0 Z{z_safe} E-1.0 F{km.travel_speed_z * 2} ; move nozzle up
      G0 X{x_safe} Y{y_safe} E-1.0 F{km.travel_speed_xy} ; remove stringing
    {% endif %}

    # Small retract to prevent ooze
    G92 E0
    G1 E-5.0 F3600
    M400
  {% endif %}

  {% if km.start_clear_adjustments_at_end != 0 %}
    RESET_HEATER_SCALING
    RESET_FAN_SCALING
    M220 S100
    M221 S100
  {% endif %}
  _RESET_LAYER_GCODE
  _RESET_VELOCITY_LIMITS
  TURN_OFF_HEATERS
  M107; turn off fan
  # Park the toolhead and present the bed
  {% if is_homed %} PARK Y="{km.start_end_park_y}" {% endif %}
  M84 ; disable steppers
  CLEAR_PAUSE

[gcode_macro _km_check_is_printing]
variable_debug_state: False # Disables print state check for debugging.
description: Throws an error if print is not currently in progress.
gcode:
  {% if not debug_state and
        printer.idle_timeout.state | string != "Printing" and
        not printer.pause_resume.is_paused %}
    { action_raise_error("No active print.") }
  {% endif %}