[vanamaxagon]

We had trouble assembling our 3 stage Vex ball shifters yesterday.
The washer spacers under the hex standoffs didn't support them properly on the narrow shoulder above the 7/16 hex recess.
When tightened, the standoffs were not square the the face of the gearbox, and were not tall enough to allow the front plate to mount properly.

The kids machined some 7/16 OD x .220" long spacers with a 1/4 hole to seat in the bottom of the 7/16 hex recess and reassembled the gearbox and we are functional now.

Watch out for this.