Replacement potentiometer knobs for the FrSky Taranis QX7. A bit larger than the stock ones, measuring 13mm at the bottom. Despite of the larger diameter, there is still plenty of clearance between the forefinger and the knob if you are pinching. In my opinion they give much better grip than the small and slippery stock ones.
Replacement is very straight forward, they are just press fitted to the potentiometer shafts. It took a quite a bit force to remove the stock ones, but it should be doable. These fit nice and tight on the shafts with given print settings but due to many variables I can't guarantee the same fit for you. If they print too tight or loose, just scale them in slicer by 1% at a time. They should be a pretty tight fit, however.
I used a sharpie to color the center triangle and then sanded it with 800 grit wet sanding paper to give a smooth finish.
My print settings:
0.12mm layer height
15mm/s perimeter speed
10mm/s bridging speed
Play with the line width to get a nice looking infill/perimeters. Took ~20 minutes to print one knob, but the quality was super fine.