Filament Spool Roller (no screws or bolts)
thingiverse
Low Profile Filament Roller: Compact Design for Easy Switching. Independent rail system allows for seamless switching between filament spools. No complicated screws or bolts required. Simply slide the grooved sleeves onto the bearings, snap in the hubs, and drop the bearing assemblies into the rail body. Assembled. Utilizes standard 608 skateboard bearings (22mm x 8mm x 7mm). Optimized for use with standard-sized filament spools, with diameters ranging from 16 to 24cm. Smaller spools as small as 8cm in diameter can also be used. Critical tolerances of 0.125mm require thorough cleaning of bearing parts using an X-Acto knife and sandpaper.
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