[EricH]

Originally Posted by Tristan Lall

Clamping is a pretty good option, though unfortunately, I don't think these motors had an alignment boss around the shaft.

As I recall, the front face was somewhat teardrop-shaped, giving two flat sides that could be used to keep it from rotating. I know 330 clamped theirs by bending allthread into a U shape of the proper diameter and setting them on a light-duty platform, then using the custom Ubolts through it, back in 2006, and as far as I know, it's still there. (Admittedly, this was a shooter motor--but we never did have any issues with the shooter not working once we got it working.)