Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5804926.

I made this to replace a broken knob on a light dimmer. The parts from the hardware store all supported D-shaped posts, but my switch had a star shaped post. I made this switch with a snug knurled round hole that fit perfectly. The pics aren't great, as my printer was not yet tuned well.

Print face down on the bed

Pictured printed in Hatchbox White