Vintage radio and volume knob. Comes in three flavors, 24, 30, and (updated) 27 mm diameter (all for 6 mm potentiometer shafts).
Print in PLA with 0.1-0.15 mm layer height (the smaller, the better and rather slow) to get a smooth surface at the top or/and sand and paint (I print using black PLA and paint them using a semitransparent reddish brown color so they look like Bakelite) with 100% infill. No need for supports.
radio_knob_24mm.stl | 141.2KB | |
radio_knob_27mm_flatted.stl | 90.6KB | |
radio_knob_30mm.stl | 763.1KB |