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bed_surface.cfg
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# Copyright (C) 2022 Justin Schuh <code@justinschuh.com>
#
# This file may be distributed under the terms of the GNU GPLv3 license.
#
# Credit to original inspiration:
# https://klipper.discourse.group/t/saving-and-adjusting-per-build-surface-z-offsets/696
[gcode_macro _apply_bed_surface_offset]
gcode:
{% set surfaces = printer.save_variables.variables.bed_surfaces %}
{% if surfaces.active %}
SET_SURFACE_ACTIVE SURFACE={surfaces.active}
{% endif %}
[gcode_macro _init_surfaces]
gcode:
{% set km = printer["gcode_macro _km_globals"] %}
{% if "bed_surfaces" in printer.save_variables.variables %}
{% set old_surfaces = printer.save_variables.variables.bed_surfaces %}
{% else %}
{% set old_surfaces = { 'active' : '', 'available' : {} } %}
{% endif %}
{% set settings = printer.configfile.settings %}
{% set new_probe_z = (settings.probe | default(settings.bltouch) |
default(settings.smart_effector) | default({})
).z_offset|default(0.0)|float %}
{% set new_endstop_z = (settings.stepper_z | default({})).position_endstop |
default(0.0)|float %}
{% if 'endstop_z' not in old_surfaces %}
{% set dummy = old_surfaces.__setitem__('endstop_z', new_endstop_z) %}
{% endif %}
{% if 'probe_z' not in old_surfaces %}
{% set dummy = old_surfaces.__setitem__('probe_z', new_probe_z) %}
{% endif %}
{% set surfaces = { 'active' : '', 'available' : {},
'endstop_z' : old_surfaces.endstop_z,
'probe_z' : old_surfaces.probe_z } %}
{% for s in km.bed_surfaces %}
{% set s = s.split()|join(' ')|lower %}
{% if s|length > km.bed_surface_max_name_length or
s|list|select("in", " \r\n\"\'")|list %}
{action_raise_error('Invalid surface name "%s". Name must be %d or fewer '
'characters and must not include space or quotation characters'
| format(s, km.bed_surface_max_name_length))}
{% endif %}
{% if s in old_surfaces.available %}
{% set dummy = surfaces.available.__setitem__(s,
old_surfaces.available[s]) %}
{% else %}
{% set dummy = surfaces.available.__setitem__(s, {'offset' : 0.0}) %}
{% endif %}
{% endfor %}
{% if old_surfaces.active in surfaces.available %}
{% set dummy = surfaces.__setitem__('active', old_surfaces.active) %}
{% elif km.bed_surfaces %}
{% set dummy = surfaces.__setitem__('active', km.bed_surfaces[0]|lower) %}
{% endif %}
SAVE_VARIABLE VARIABLE=bed_surfaces VALUE="{surfaces}"
_APPLY_BED_SURFACE_OFFSET
{% if new_probe_z != surfaces.probe_z or
new_endstop_z != surfaces.endstop_z %}
{ action_respond_info(
'Z probe offset or endstop position changed. Run ADJUST_SURFACE_OFFSETS '
'to adjust the offset for all saved surfaces by the change differential, '
'or run ADJUST_SURFACE_OFFSETS IGNORE=1 to hide this message without '
'making changes.') }
{% endif %}
[gcode_macro adjust_surface_offsets]
description: Adjusts surface offsets to account for changes in the Z endstop
position or probe Z offset.
Usage: ADJUST_SURFACE_OFFSETS [IGNORE]
gcode:
{% set surfaces = printer.save_variables.variables.bed_surfaces %}
{% set settings = printer.configfile.settings %}
{% set new_probe_z = (settings.probe | default(settings.bltouch) |
default(settings.smart_effector) | default({})
).z_offset|default(0.0)|float %}
{% set new_endstop_z = (settings.stepper_z | default({})).position_endstop |
default(0.0)|float %}
{% set diff = (surfaces.probe_z - new_probe_z +
surfaces.endstop_z - new_endstop_z)|round(6) %}
{% if not params.IGNORE|default(0)|int %}
{% for s in surfaces.available %}
{% set offset = (surfaces.available[s].offset - diff)|round(6) %}
{% set dummy = surfaces.available.__setitem__(s, {'offset' : offset}) %}
{% endfor %}
{ action_respond_info("All bed surfaces now adjusted by %1.4f"|
format(diff))}
{% elif diff != 0 %}
{ action_respond_info("Status cleared without adjustment") }
{% endif %}
{% set dummy = surfaces.__setitem__('endstop_z', new_endstop_z| round(6)) %}
{% set dummy = surfaces.__setitem__('probe_z', new_probe_z|round(6)) %}
SAVE_VARIABLE VARIABLE=bed_surfaces VALUE="{surfaces}"
[gcode_macro set_surface_offset]
description: Sets the offset for a surface and moves the toolhead (if homed).
Usage: SET_SURFACE_OFFSET [OFFSET=<offset>] [SURFACE=<surface>]
gcode:
{% set surfaces = printer.save_variables.variables.bed_surfaces %}
{% set SURFACE = params.SURFACE|default(surfaces.active)|lower %}
{% if SURFACE not in surfaces.available %}
{ action_raise_error("Bed surface %s does not exist." | format(SURFACE)) }
{% endif %}
{% set active = surfaces.available[SURFACE] %}
# If no offset is provided just print out the current offset.
{% set OFFSET = params.OFFSET|default(active.offset)|float %}
{% if OFFSET != active.offset %}
{% set dummy = surfaces.available[SURFACE].__setitem__("offset", OFFSET) %}
SAVE_VARIABLE VARIABLE=bed_surfaces VALUE="{surfaces}"
{% if SURFACE == surfaces.active %}
_km_set_gcode_offset_base Z="{OFFSET}" MOVE={
1 if printer.toolhead.homed_axes == 'xyz' else 0}
{% endif %}
{% endif %}
{ action_respond_info("Bed surface: %s Offset: %.3f"
| format(SURFACE, OFFSET)) }
# Dummy argument block for Mainsail
{% set dummy = None if True else "
{% set dummy = params.SURFACE|default(active surface) %}
{% set dummy = params.OFFSET|default(none)|float %}
" %} # End argument block for Mainsail
[gcode_macro set_surface_active]
description: Sets the active bed surface and moves the toolhead (if homed). If
no SURFACE argument is present the available surfaces are listed and the
active one is preceded by a "*".
Usage: SET_SURFACE_ACTIVE [SURFACE=<surface>]
gcode:
{% set surfaces = printer.save_variables.variables.bed_surfaces %}
{% if "SURFACE" in params %}
{% set SURFACE = params.SURFACE|lower %}
{% if SURFACE not in surfaces.available %}
{ action_raise_error("Bed surface %s does not exist." | format(SURFACE)) }
{% endif %}
{% if SURFACE != surfaces.active %}
{% set dummy = surfaces.__setitem__("active", SURFACE) %}
SAVE_VARIABLE VARIABLE=bed_surfaces VALUE="{surfaces}"
{% endif %}
{% if surfaces.available[SURFACE].offset !=
printer.gcode_move.homing_origin.z %}
_km_set_gcode_offset_base Z="{surfaces.available[SURFACE].offset
}" MOVE={1 if printer.toolhead.homed_axes == 'xyz' else 0}
{% endif %}
{action_respond_info("Active bed surface: %s; offset: %.3f"
| format(SURFACE, surfaces.available[SURFACE].offset))}
{% else %}
{% set output = [] %}
{% for s in surfaces.available|list|sort %}
{% set dummy = output.append("%s %s - offset: %.3f"
| format("*" if s == surfaces.active else " ",
s, surfaces.available[s].offset)) %}
{% endfor %}
{action_respond_info(output|join('\n'))}
{% endif %}
# Dummy argument block for Mainsail
{% set dummy = None if True else "
{% set dummy = params.SURFACE|default(none) %}
" %} # End argument block for Mainsail
[gcode_macro set_gcode_offset]
description: Wraps SET_GCODE_OFFSET to update the current bed sheet offset.
Usage: SET_GCODE_OFFSET [X=<pos>|X_ADJUST=<adjust>]
[Y=<pos>|Y_ADJUST=<adjust>]
[Z=<pos>|Z_ADJUST=<adjust>]
[MOVE=1 [MOVE_SPEED=<speed>]]
rename_existing: _KM_SET_GCODE_OFFSET_BASE
gcode:
{% set surfaces = printer.save_variables.variables.bed_surfaces %}
{% if surfaces.active and
not printer["gcode_macro _km_save_state"].is_ephemeral %}
{% set Z = params.Z|default(0.0)|float|round(6) %}
{% set Z_ADJUST = params.Z_ADJUST|default(0.0)|float %}
{% if 'Z' in params and
Z != surfaces.available[surfaces.active].offset %}
{% set dummy = surfaces.available[surfaces.active].__setitem__("offset",
Z) %}
SAVE_VARIABLE VARIABLE=bed_surfaces VALUE="{surfaces}"
{% elif Z_ADJUST != 0.0 %}
{% set dummy = surfaces.available[surfaces.active].__setitem__(
"offset", (Z_ADJUST + printer.gcode_move.homing_origin.z)|round(6)) %}
SAVE_VARIABLE VARIABLE=bed_surfaces VALUE="{surfaces}"
{% endif %}
{% endif %}
_km_set_gcode_offset_base{% for k in params%}{' '~k~'="'~params[k]~'"'
}{% endfor %}