Ender3 Filament Roller with locking backplate
thingiverse
Ender3 Filament Roller with locking backplate I've added a plate on the back end to prevent filament spools from falling off if you are moving or tilting the printer You would need to turn the screw nob to release the holder to put in a new roll of filament and then screw it back on. Filament_holder_80mm_spools w Endplate
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