I've been asked to do 3D CAD models & drawings for a guitar bridge, and I've run into a feature that I've not seen before. There is an 8-32 thumbscrew with a tip that snaps into the screw and rotates freely. I can see how the tip itself was made, but I'm trying to figure out how the hole for it was made. Obviously, there is a necked-down section within the hole to retain the shaft, but how was that feature made? Is there any kind of standard for a feature like this? Does it have a name?
Thanks for any insight!
Ryan