This is a filament spool holder for a M8 threaded rod.
You also need the following components:
To assembly everything you'll need to press-fit nuts and bearings carefully into printed parts.
Note that M8 nut have to be directed towards a bearing when screwing a knob, otherwise the knob will block the bearing from rotating.
The same knob can also be used to mount a threaded rod with a spool onto some kind of stand or even to the 3D-printer enclosure itself.
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filament-spool-holder-Body.stl | 147.7KB | |
filament-spool-holder.FCStd | 12.6KB | |
M8-nut-knob-Body.stl | 175.2KB | |
M8-nut-knob.FCStd | 99.6KB |