Filament spool holder (ball bearings required)

I bought too much ball bearings from Amazon, so I designed this spool holder.
You need two 8x22x7 ball bearings (inner, outer diameter, and depth)
It was designed using onshape, and you can fork this design from here :
https://cad.onshape.com/documents/080e755e1a0450361a610765/w/578fc3d7d26d635d314cd955/e/8dbc93a00aa163483e5c8e8e

### bar.stl
- auto-generated supports (using craftware)
- raft
- 0.100 mm Z-axis resolution

### spool_holder_foot.stl
- no supports
- 0.200 mm Z-axis reso