Purge Bucket - Fixes & Features Additions In Macros (#218)
* Update nozzle_scrub.cfg Fix error in script defining random selection of bucket halves for purging. Small speed unit correction. (thanks Deutherius#3295 on VD discord for pointing these out) * Fix incorrect syntax * Fix incorrect range definition Range was incorrectly defined, leading to bucket_pos not actually being randomly selected. * Add several features - Scrubbing location and direction now follow the randomized location of left and right bucket. - Added filament retract after a purge. - Added a dwell/wait parameter after a purge for particularly oozy filaments.
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@ -1,26 +1,30 @@
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#######################################################################################################################################
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# Sample macro config to be used in conjunction with the Decontaminator Purge Bucket & Nozzle Scrubber mod. Created by Hernsl
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# (hernsl#8860 on Voron Design discord) and edited by Edwardyeeks (edwardyeeks#6042 on Voron Design Discord).
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# (hernsl#8860 on Discord) and edited by Edwardyeeks (edwardyeeks#6042 on Discord). Several ideas that made it as features by
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# Deutherius (deutherius#3295 on Discord).
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# The goal of this macro is to provide a nozzle scrubbing and purging routine that is easily copied/referenced into your printer.cfg.
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# Users can simply change parameters and enable/disable options in the first half. Descriptions are laid out in sequence to be read
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# first; PLEASE READ CAREFULLY.
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# Users can simply change parameters and enable/disable options in the first half. Descriptions are plentiful, making this macro
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# look huge but informative and are laid out in sequence to be read first describing the line below; PLEASE READ CAREFULLY.
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# This sample config assumes the following: The user has implemented the default decontaminator purge bucket & nozzle scrubber mod
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# for the VORON 1/2.
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# for the VORON 1/2. It can be tweaked to customised purge bucket geometries and brushes.
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# Features in this macro: option of putting the bucket at the rear or front of the bed. Purge routine that can be enabled/disabled.
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# By default, bucket is located at rear left of bed and purge routine is enabled.
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# By default, bucket is located at rear left of bed and purge routine is enabled. The purge and scrubbing routine is randomized
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# in either left or right bucket to ensure as even as possible distribution of filament gunk.
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# Default parameters are set for safe speeds and movements. Where necessary, tweak the parameters for the nozzle scrub procedure
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# to fit your printer.
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# To avoid adding length of lines to your main printer.cfg config file, one can upload a config file separately into klipper and
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# include it into the main printer config. Upload nozzle_scrub.cfg to the same directory as printer.cfg. Usually, it is in /home/pi/.
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# Users of Fluidd, Mainsail and other klipper front ends would find it under /home/pi/klipper_config/.
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# Once uploaded, add the following to your printer.cfg in the Macros section: [include /home/pi/nozzle_scrub.cfg]
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# Those running mainsail will need to use the following location instead: [include /home/pi/klipper_config/nozzle_scrub.cfg]
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# Those running Fluidd, Mainsail and other front ends will need to use the following location instead:
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# [include /home/pi/klipper_config/nozzle_scrub.cfg]
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#######################################################################################################################################
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@ -36,17 +40,22 @@ variable_location_bucket_rear: True
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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. Update as necessary. If you decided to not enable purge, you can ignore this section.
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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: 10 ; Amount of filament, in mm, to purge.
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variable_purge_spd: 150 ; Speed, in mm/s, of the purge.
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variable_purge_spd: 150 ; Speed, in mm/min, of the purge.
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variable_purge_temp_min: 240 ; Minimum nozzle temperature to permit a purge. Otherwise, purge will not occur.
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variable_purge_ret: 2 ; Retract length, in mm, after purging to prevent slight oozing. Adjust as necessary.
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variable_ooze_dwell: 2 ; 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: 10
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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.
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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: 5 ; 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: start left, go right, go left) wipes.
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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: 3000 ; Travel (not cleaning) speed along x and y-axis in mm/min.
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variable_prep_spd_z: 1500 ; Travel (not cleaning) speed along z axis in mm/min.
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variable_wipe_spd_xy: 5000 ; Nozzle wipe speed in mm/min.
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@ -123,12 +132,13 @@ variable_bucket_start: 0
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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.
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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 contain at random a number representing the left or right bucket.
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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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@ -147,8 +157,8 @@ gcode:
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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.
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SET_GCODE_VARIABLE MACRO=clean_nozzle VARIABLE=bucket_pos VALUE={(range(0, 1) | random)}
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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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@ -161,20 +171,23 @@ gcode:
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{% endif %}
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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_gap) + (bucket_pos * (bucket_right_width / 2))}
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G1 X{bucket_start + (bucket_left_width / (2 - bucket_pos)) + (bucket_pos * bucket_gap) + (bucket_pos * (bucket_right_width / 2))}
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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.
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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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G1 E-{purge_ret} F{purge_spd * 5}
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G4 P{ooze_dwell * 1000}
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G92 E0 ; reset extruder
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{% endif %}
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{% endif %}
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## Position for wipe.
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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} F{prep_spd_xy}
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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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@ -186,10 +199,10 @@ gcode:
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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.
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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} F{wipe_spd_xy}
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G1 X{brush_start} F{wipe_spd_xy}
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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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