OP1 Volume Knob

Replacement volume knob for a Teenage Engineering OP-1.

I got mine second-hand with the knob missing so I didn't have an exact reference to work off of, but I copied design cues from the encoder knobs and photos I could find of the original knob.

This will likely work for anything else with a 6mm D-shaft. The knob has a 10.25mm OD and is about 14mm tall.

There is a bit of extra clearance on the shaft to account for variations in horizontal expansion. Depending on your printer and settings, you may need to add a layer of tape on the shaft to get it to fit snugly.