Purge

[mneuhaus]

Existing Systems:

Retractable Purge Mechanism, for MultiColor 3D printing, Replaces purge blocks & wipe towers

Dynamic Purge Bucket

EjectionAssistedPurge

Random Videos:

https://www.youtube.com/watch?v=3BD3CE2hF6E

[mneuhaus]

Design Goals:

• compact Pebble like mechanism from BigBrain3D., spaghetti tends to cause problems on disposure because of way to much entropy
• powered by a single servo
• must "reach" under the hotend to work for 2.4 and Trident with TAP
• the pebble must be "guided" safely away from the hotend into a chute
• the chute should guide the pebbles into a container outside the regular build room to be emptiable while printing

General concept idea:

An "arm" with multiple layers that will slide into purge position for the hotend to drop its filament into.

Very rough motion test:

https://user-images.githubusercontent.com/316605/224512121-4b31b431-7742-4697-a7e7-4ee7e8086368.mp4

[bergyb]

What about something like this: purge with micro with changes:

• instead of the purge on the bed, on the 2.4, the purge tower could be on an arm like Klicky probe Dock base
• and then use toolhead to kick the purge tower in a detachable tray under -kick to the left/right or back
• the Dock base could also include Nozzle Scrubber