Our mounting screws interfered with the gears as well.
The CAD file states that there must be two washers between the motor and the gear. For some reason our SpinBox did not come with the washers, so we had to salvage some from the spares/older CIMS we had laying around.
Notifying AM is a good idea. It would help them avoid this issue for other orders.
__________________
My posts and opinions do not necessarily reflect those of my affiliated team.
['16-'xx]: Mentor FRC 2170 | ['11-'13]: Co-Founder/Mentor FRC 3929 | ['06-'10]: Student FRC 11 - MORT | ['08-'12]: Founder - EWCP (OG)