Huh? What is this?
This is a modified MMU2 pulley body which has holes cut in it for a cleaning brush as used in the Skelestruder design. Why have your springs and bolts go flying when you open it if you can have the gears clean themselves?
- Jul 24 2019: Fixed 3mm shaft to be a better fit, widened brush holes to fit brush hubs.
- Jul 25 2019: No change, just re-uploaded because TV decided not to generate previews.
Insert brush in slots, put shaft through, enjoy. Maybe use some M3 screws or 3mm filament to keep the shaft in place if it's loose.
Use the same settings as the original printed part from Prusa.