Chipwood Spool stand knob holder

This holder is to be screwed to a chipwood spool holder stand.

The stand itself is made of 16mm chipwood: side parts are 150mm * 130mm, bottom part is 95mm * 130mm

This part itself is made by me but for the entire holder I used the below:

- axis and nuts from https://www.printables.com/model/452869-universal-spool-holder-with-608zz-bearings-for-big
- knobs from https://www.printables.com/model/188931-spool-holder-with-6082z-lack-enclosure-mod