Crosley Radio Knob

This is a knob that I made in fusion 360 to replace one missing from my father's Crosley CR-9 Select-o-matic (an AM/FM/Cassette player styled to look like those mid twentieth century tabletop jukeboxes that you'll see at Johnny Rockets and similar places).

The photo shows one of the originals that I used for measurements, and the resulting print. I've made a small change since the photo, to fillet the edges of the knob and the ridges a little. The original is chromed plastic, so matching wi