Knob Cupcake

This is a commemorative knob for the birthday of Knob of the week. I dropped this series some months ago and this doesn't mean a second season.
The hole for the schaft have a 6mm dyameter, it may must be scratched to make it fit on the potentiometer. To lock the knob use a 3mm headless screw and then put an o-ring high ~3.5 mm and with an internal dyameter of ~20mm.


Presentation video:
https://youtu.be/d6WXpZTvOeA