This seems like a very stupid question. I’m using MechDesktop 4 and I’m trying
to put a setscrew in a shaft collar. This is a problem that I’ve lived with for years and finally decided to seek help. I’m not an idiot. I know this software
better than anyone I know. If the collar has a keyway, it’s simple. No keyway,
not simple, or at least I can’t see it.