Creality (Ender 3) Filament holder
thingiverse
This holder is designed to use 2 ball bearings 6202-2RS (35x15x11). To put this together You also need two countersunk screws M4x15. It uses original Creality nut. I used roller - extended to catch 10mm dia end in a bench drill and smooth the surface with sandpaper. Then I cut off this fragment before assembly. I also designed wholes in roller to put two additional countersank screws M4x15 to make bearing section of roller stronger (as I tend to drop things from time to time).
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