Created as a replacement for a knob on an old valve radio (the restoration of which unfortunately hasn't got beyond this point), this solid knob is designed to fit potentiometers with 6.3mm "D" type (flattened side) shafts. This is probably the most common size of potentiometer shaft.
The knob it was based on is the yellow one in the last image. The side grips ended up more pronounced than in the original, though this does allow for better grip.
Radio_Knob.des | 629.0KB | |
Radio_Knob_print_position.stl | 436.5KB |