Print-in-Place Spool Roller - Filament Spool Holder for 140-230 mm Spools, No Bearings, No Assembly - STL + 3MF

A spool holder that needs nothing but one print: two rollers are printed already captured in the frame on 45 degree cone pins, so there are no bearings, rods, screws or glue. Lay any spool on it - plastic or cardboard, 140 to 230 mm across and up to 84 mm wide - and it turns freely as the printer pulls filament. **Why it works** - Each roller rides on two cone pins that sit in matching sockets in the end walls - they carry the load and keep the roller centred, with 0.40 mm clearance all round -…

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