Print-in-Place Wall Spool Holder with Roller - Filament Spool Wall Mount, No Bearings - STL + 3MF

Hang a filament spool on the wall next to your printer and let it turn on a real roller - printed in one piece, roller included. No bearings, no rod, just two wall screws. **How it works** - A 28 mm roller turns on 45 degree cone pins between the wall plate and the end cap, 0.40 mm clearance (checked on the final mesh) - Six shallow grip grooves on the roller keep the spool turning instead of sliding - Twin side rails with 45 degree gussets carry the end cap; they sit inside the spool hole besi…

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