Filament Holder Roller for Ender 3
thingiverse
A very simple filament spool holder to fit on the stock Ender 3 roller/pipe. Slide on to stop the roll of filament swinging and catching as it unwinds. Print 2 (one for each side) Internal hole is 32mm diameter, roller sleeve/bearing is 53mm diameter. Outer flange is ~80mm diameter. V2: Additional version with slightly larger internal hole (33mm up from 32mm) for extra tolerance/printing inaccuracies. If you can get away with the tighter V1 version, it's probably preferable.
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