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start_end.cfg
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# Copyright (C) 2022 Justin Schuh <[email protected]>
#
# 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.
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) %}
{% 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
start_z_tilt_adjust_at_temp %}
{% set bed_at_target = (BED - printer.heater_bed.temperature)|abs < 0.3 %}
{% 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 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
# 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 actions_at_temp %}
{% if km.start_extruder_set_target_before_level %}
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 not km.start_extruder_set_target_before_level %}
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_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
gcode:
{% 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 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 %}
# Wipe if we're not cancelling a paused print.
{% if not printer.pause_resume.is_paused %}
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
{% 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
PARK Y="{km.start_end_park_y}"
M84 ; disable steppers
CLEAR_PAUSE