176 lines
9.4 KiB
INI
176 lines
9.4 KiB
INI
[gcode_macro clean_nozzle]
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# If you are putting your purge bucket at the rear left of the bed as per default installation, enable True on your location_bucket_rear
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# variable. If you want to put your purge bucket elsewhere (perhaps the front), then set it to False. See diagrams and description
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# further below on how to set your XY position.
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variable_location_bucket_rear: False
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# If you want the purging routine in your bucket enabled, set to True (and vice versa).
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variable_enable_purge: True
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# These parameters define your filament purging. The retract variable is used to retract right after purging to prevent unnecessary
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# oozing. Some filament are particularly oozy and may continue to ooze out of the nozzle for a second or two after retracting. The
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# ooze dwell variable makes allowance for this. Update as necessary. If you decided to not enable purge, you can ignore this section.
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variable_purge_len: 25 ; Amount of filament, in mm, to purge.
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variable_purge_spd: 300 ; Speed, in mm/min, of the purge.
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variable_purge_temp_min: 220 ; Minimum nozzle temperature to permit a purge. Otherwise, purge will not occur.
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variable_purge_ret: 0 ; Retract length, in mm, after purging to prevent slight oozing. Adjust as necessary.
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variable_ooze_dwell: 1 ; Dwell/wait time, in seconds, after purging and retracting.
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# Adjust this so that your nozzle scrubs within the brush. Currently defaulted to be a lot higher for safety. Be careful not to go too low!
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variable_brush_top: 8
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# These parameters define your scrubbing, travel speeds, safe z clearance and how many times you want to wipe. Update as necessary. Wipe
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# direction is randomized based off whether the left or right bucket is randomly selected in the purge & scrubbing routine.
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variable_clearance_z: 10 ; When traveling, but not cleaning, the clearance along the z-axis between nozzle and brush.
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variable_wipe_qty: 3 ; Number of complete (A complete wipe: left, right, left OR right, left, right) wipes.
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variable_prep_spd_xy: 48000 ; Travel (not cleaning) speed along x and y-axis in mm/s.
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variable_prep_spd_z: 1500 ; Travel (not cleaning) speed along z axis in mm/s.
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variable_wipe_spd_xy: 5100 ; Nozzle wipe speed in mm/s.
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# These parameters define the size of the brush. Update as necessary. A visual reference is provided below. Note that orientation of
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# parameters remain the same whether bucket is at rear or front.
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#
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# ← brush_width →
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# _________________ ↑
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# | | ↑ If you chose location_bucket_rear = True, Y position is acquired
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# brush_start (x) | | brush_depth from your stepper_y position_max. Adjust your brush physically in
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# |_________________| ↓ Y so that the nozzle scrubs within the brush.
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# (y) ↓
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# brush_front
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# __________________________________________________________
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# PRINTER FRONT
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#
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#
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## For V1.8, you may need to measure where your brush is on the x axis and input manually into any of the variable_brush_start uncommented.
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variable_brush_start: 72
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# This value is defaulted from brush location in CAD (rear left). Change if your brush width is different.
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variable_brush_width: 30
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## These are only used if location_bucket_rear is False. You specify a custom location in y axis for your brush - see diagram above. ##
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variable_brush_front: 301
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variable_brush_depth: 4
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# These parameters define the size of your purge bucket. Update as necessary. If you decided to not enable purge, you can ignore
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# this section. A visual reference is provided below. Note that orientation of parameters remain the same whether bucket is at rear
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# or front.
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#
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# bucket_gap
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# ← ---- →
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# __________________________________________
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# | | | |
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# | | | |
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# bucket_start (x) | |______| |
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# | | | |
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# | | | |
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# |_________________|. . . |_________________|
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# ← ------------- → ← ------------- →
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# bucket_left_width bucket_right_width
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# _______________________________________________________________________________________
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# PRINTER FRONT
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#
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## For V2.4 250mm build, uncomment below
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variable_bucket_left_width: 42
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# These values are defaulted from bucket geometry in CAD (rear left location). Change only if you're using a custom bucket.
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variable_bucket_right_width: 40
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variable_bucket_gap: 22
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# For V1.8, you may need to measure where your bucket start is and input into bucket_start. Otherwise, a value of 0 is for a default
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# installation of purge bucket at rear left.
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variable_bucket_start: 38
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###############################################################################################################################################
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###############################################################################################################################################
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### From here on, unless you know what you're doing, it's recommended not to change anything. Feel free to peruse the code and reach out to me
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### (edwardyeeks#6042) on Discord if you spot any problems!
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###############################################################################################################################################
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###############################################################################################################################################
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# Placeholder. The variable will later be set to contain, at random, a number representing the left or right bucket.
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variable_bucket_pos: 1
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gcode:
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# First, check if the axes are homed.
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{% if "xyz" in printer.toolhead.homed_axes %}
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## Save the gcode state in this macro instance.
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SAVE_GCODE_STATE NAME=clean_nozzle
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## Set to absolute positioning.
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G90
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## Grab max position of Y-axis from config to use in setting a fixed y position for location_bucket_rear = True.
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{% set Ry = printer.configfile.config["stepper_y"]["position_max"]|float %}
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## Check if user enabled purge option or not.
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{% if enable_purge %}
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### Randomly select left or right bin for purge. 0 = left, 1 = right
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SET_GCODE_VARIABLE MACRO=clean_nozzle VARIABLE=bucket_pos VALUE={(range(2) | random)}
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### Raise Z for travel.
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G1 Z{brush_top + clearance_z} F{prep_spd_z}
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### Position for purge. Randomly selects middle of left or right bucket. It references from the middle of the left bucket.
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G1 X{bucket_start + (bucket_left_width / (2 - bucket_pos)) + (bucket_pos * bucket_gap) + (bucket_pos * (bucket_right_width / 2))} F{prep_spd_xy}
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### Check if user chose to use rear location.
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{% if location_bucket_rear %}
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G1 Y{Ry} F{prep_spd_xy}
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{% else %}
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G1 Y{brush_front + (brush_depth / 2)} F{prep_spd_xy}
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{% endif %}
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### Perform purge if the temp is up to min temp. If not, it will skip and continue executing rest of macro. Small retract after
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### purging to minimize any persistent oozing at 5x purge_spd. G4 dwell is in milliseconds, hence * 1000 in formula.
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{% if printer.extruder.temperature >= purge_temp_min %}
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M83 ; relative mode
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G1 E{purge_len} F{purge_spd}
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G92 E0 ; reset extruder before retract
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G1 E-{purge_ret} F{purge_spd * 5}
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G4 P{ooze_dwell * 1000}
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{% endif %}
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{% endif %}
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## Position for wipe. Either left or right of brush based off bucket_pos to avoid unnecessary travel.
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G1 Z{brush_top + clearance_z} F{prep_spd_z}
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G1 X{brush_start + (brush_width * bucket_pos)} F{prep_spd_xy}
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## Check if user chose to use rear location.
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{% if location_bucket_rear %}
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G1 Y{Ry}
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{% else %}
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G1 Y{brush_front + (brush_depth / 2)}
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{% endif %}
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## Move nozzle down into brush.
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G1 Z{brush_top} F{prep_spd_z}
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## Perform wipe. Wipe direction based off bucket_pos for cool random scrubby routine.
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{% for wipes in range(1, (wipe_qty + 1)) %}
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G1 X{brush_start + (brush_width * (1 - bucket_pos))} F{wipe_spd_xy}
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G1 X{brush_start + (brush_width * bucket_pos)} F{wipe_spd_xy}
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{% endfor %}
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## Clear from area.
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M117 Cleaned!
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G1 Z{brush_top + clearance_z} F{prep_spd_z}
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## Restore the gcode state to how it was before the macro.
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RESTORE_GCODE_STATE NAME=clean_nozzle MOVE=1 MOVE_SPEED=500
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{% else %}
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## raise error will stop any macros that clean_nozzle is referenced in from proceeding for safety.
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{ action_raise_error("Please home your axes!") }
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M117 Please home first!
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{% endif %}
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