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>]
gcode:
  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 km = printer["gcode_macro _km_globals"] %}

  _INIT_LAYER_GCODE LAYERS="{params.LAYERS|default(0)|int}"
  {% if CHAMBER > 0.0 %}
    M141 S{CHAMBER}
  {% endif %}
  # Start bed heating
  M140 S{BED}
  {% if km.start_level_bed_at_temp %}
    # If we're going to run a bed level we heat the extruder only part way to
    # avoid oozing all over the bed while probing.
    M104 S{(km.start_extruder_preheat_scale * EXTRUDER)|round(0,'ceil')|int}
  {% else %}
    M104 S{EXTRUDER}
  {% endif %}
  # home all axes
  G28
  G90
  PARK
  {% if BED > 0.0 %}
    # Overshoot the target a bit.
    M190 S{(BED + km.start_bed_heat_overshoot,
            printer.configfile.settings.heater_bed.max_temp)|min}
    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 km.start_level_bed_at_temp %}
    M104 S{EXTRUDER} # set the final extruder target temperature
    G28 Z # Re-home only the Z axis now that the bed has stabilized.
    BED_MESH_CALIBRATE MESH_MIN={params.MESH_MIN|default("0,0")
                     } MESH_MAX={params.MESH_MAX|default("0,0")}
    PARK
  {% endif %}
  {% if CHAMBER > 0.0 %}
    M191 S{CHAMBER}
  {% endif %}
  # Wait for extruder to reach temperature
  M109 S{EXTRUDER}
  # apply Z offset for bed surface (just in case it was reset).
  _APPLY_BED_SURFACE_OFFSET

[gcode_macro print_end]
description: Inserted by slicer at end of print.
  Usage: PRINT_END
gcode:
  M400
  G92 E0
  G1 E-5.0 F3600

  {% set km = printer["gcode_macro _km_globals"] %}
  {% set toolhead = printer.toolhead %}
  {% set max_x = toolhead.axis_maximum.x %}
  {% set max_y = toolhead.axis_maximum.y %}
  {% set max_z = toolhead.axis_maximum.z %}
  {% set x_safe = (max_x - toolhead.position.x, 5.0)|min %}
  {% set y_safe = (max_y - toolhead.position.y, 5.0)|min %}
  {% set z_safe = (max_z - toolhead.position.z, 2.0)|min %}

  # Wipe if we're not cancelling a paused print.
  {% if not printer.pause_resume.is_paused %}
    G91
    G0 Z{z_safe} F{km.travel_speed_z * 2} ; move nozzle up
    G0 X{x_safe} Y{y_safe} F{km.travel_speed_xy} ; remove stringing
  {% 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 Y={max_y}
  CLEAR_PAUSE