# 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= [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 %}