I was looking for something to print on my 3D printer and realized that a few knobs from various appliances are missing (radio, range hood, space heater).
I took some measurements and used OnShape to design them and Simplify3D to slice. Printed in ABS on my modified Tevo Tarantula 3D printer. Since some of these were going to be used with greasy and dirty fingers (especially the ones for the range hood), I smoothed the ABS in acetone vapor.
Unfortunately I don’t have pics of the actual knobs. May be I will take some soon. The knobs are still being used.