Ender 3 Filament Roller
thingiverse
Upgrade your Ender 3 Spool holder so the motor doesn't have to work as hard. I just used some bearings I found lying around. You may need to secure the bearing by putting it face down on a hard surface and lightly hammering on the plastic to properly wedge the bearing in. Fusion 360 file is included so you can modify it how you choose.
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