Simple customizable 608 bearings Spool Holder

# Spool holder

This is a spool holder using 608 bearings, inspired by many of already exiting ones, and particularly [this one](https://www.thingiverse.com/thing:2165694).

The advantages of this one are:
- no screw
- simple assembly (3 different parts)
- large base for stability

Little margins for printing inaccuracies correction are customizables using online `onshape` app.

## Customization

=> Follow [this link](https://cad.onshape.com/documents/429ec560f9b0775764446c44/