Gantry mounted nozzle scrubber with auto poop-eject

The nozzle scubber is also used to eject filament that is pooped onto a poop-shelf.

The scubber has a moving head riding on 6 small bearings that pushes any poop off the poop-deck during the scrubbing motion.

I recommend covering the poop-deck with a thin layer of silocone (photo of suitable tape attached).

Here's a video showing it in action: 

See here for an example macro that uses the scrubber: https://github.com/robandwend/BoxTurtleLid/tree/main/Extras/NozzleScubberWithPoopEject