You need no tools, no screws, no shafts, no threaded rods.
The roller can be screwed to the surface on which it stands.
The filament rolls easily due to the large rolls.
Only 3 parts to print. You need the ball bearings.
Two different sizes available. Holder for a 1kg spool and for a 2,5kg spool.
1kg holder requires 4 bearings (6000-2RS): OD26mm x ID10mm x W8mm
2,5kg holder requires 4 bearings (608-2RS): OD22mm x ID8mm x W7mm
The author remixed this model.