Tell us about yourself!
This is cool, never thought of having an external control knob like this. Any particular reason you decided to use a clear acrylic cover for the bottom? I don't have access to a laser cutter, so I would probably just 3D print the cover as well.
Rocker Arms Clothes Hanger
Recovering You Car's Headliner and Pillars
I have done this as well. It works well in my thermos that I store coffee in where dark film will build up on the interior walls.