Catch Preventor for Prusa Compact MMU2 Spool Holder
thingiverse
The Prusa Compact MMU2 Spool Holder by jgillick is a must have accessory for anyone with a Prusa MMU2 3D printer, but I suffer from jams and breakages due to the filament getting jammed between the tower frame and large wheel. See video of it almost happening (https://youtu.be/GcTDmt6kvFk). The printer does not stop when the printer jams as all sensors show filament. So your print is ruined, especially if it is a multi material print. This bracket can be fitted to new or existing stands with a nut, bolt, large washer and I have have included versions for metric or imperial bolts Parts needed: - Nut and bolt (M6x12 or 1/4" x 1/2" long) - large washer (18mm OD min) I used 1/4" mudguard washers (https://www.bunnings.co.nz/zenith-1-4-zinc-plated-mudguard-washer-12-pack_p0149827) and bolts ranging from 10-16mm long. All worked, but the 12mm long bolt can be fitted into the bracket, then installed on the stand. Longer bolts have to be fitted once the bracket is in the stand and the 10mm long bolts only barely engage with the nuts.
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