FRC 48: Transmission Issue

[A_Reed]

This past Friday was our 24(+) hour Build-a-thon before our pre-ship event on Saturday. During our overnight build session we finally mounted and ran chain to our modified AM Shifters only to find out that they don't shift on the fly. It will shift from high to low with little chatter but when we pull out from low to high it tugs, stops, moves slowly to the point where the dog grinds horribly on the teeth on the low gear and then slams into high gear.

over the length of almost a whole day another build student and I racked our brains trying to find a solution...we have yet to come up with one. this is where you the CD community come in We would like you help.

We have already done or checked these things:

It is designed to AM shifters spacing on everything...Gears ,spacer width and servo position.

Cleared Dog of lubricant.

Changed Servo.

Switched around what motor was powering it to see if speed/torque were a problem.

Changed out shifting cluster.