This is an Airstream window knob made to fit with a 10-32 screw and a 10-32 nyloc. I made this for an Airstream we are currently renovating and made it to better fit shades we are fitting it out with.

I printed this out of ABS silver to be able to smooth it with acetone afterward. I also sanded the imperfections down of the print first to make it smooth before the acetone vapor bath.

Ended up with a very nice marble finish showing off the layer lines while keeping a smooth finish.