Ender 3 Filament Guide for 688 bearing
thingiverse
Remix of D3D Designs Ender 3 filament guide, modified to use a 688 ball bearing since thats what I had. Just print all D3D Designs files (included), but instead of printing 2 of the pulley half's, print his and mine (the snap together and fills ind the space from 608 to 688).
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