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klipper-macros/macros/print/nozzle_guard.cfg
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# Nozzle collision guard: bd_pressure watches the nozzle force during moves
# that must not touch anything (needs extras/bdp_guard.py and the bd_pressure
# load-check firmware). See extras/bdp_guard.py.
#
# mode: log only measures and reports each phase (console and klippy.log,
# "bdp_guard:"). Run a few print starts in log mode, set threshold well
# above the peaks the phases show, then switch to mode: stop.
[bdp_guard]
sensor: bd_pa
mode: log
threshold: 30
samples: 3
interval: 0.02
# M400 first: BDP_GUARD_ARM/DISARM act at once, not in the move queue, so
# without it the guard would watch moves that are still queued (contact
# homing, extrusion) or stop watching before the armed moves ran.
[gcode_macro _GUARD_ON]
description: Arm the nozzle guard for PHASE=<name> [MODE=log|stop] after the queued moves (nothing without [bdp_guard])
gcode:
{% if 'bdp_guard' in printer %}
M400
BDP_GUARD_ARM PHASE={params.PHASE|default('armed')} {('MODE=' ~ params.MODE) if 'MODE' in params else ''}
{% endif %}
[gcode_macro _GUARD_OFF]
description: Disarm the nozzle guard after the queued moves (nothing without [bdp_guard])
gcode:
{% if 'bdp_guard' in printer %}
M400
BDP_GUARD_DISARM
{% endif %}