Gearbox not turning properly

[themccannman]

The easiest way to trouble shoot the location of the problem is to assemble the gearbox stage-by-stage and run it by hand before attaching each stage. You should be able to deduce where the problem is at some point when the gearbox stops turning smoothly. If all of the gears run fine but it doesn't with the face plate on then there is a problem with how the face plate is being mounted.

[Walter Deitzler]

So after talking to Akash Rastogi and reading RC's replys, we were able to figure out that there were three problems.
1) The mounting holes for the CIMs were too close together. This caused them to come out at a slight angle. One plate-change later, that was good to go.

2) We over tightened the rest of the gearbox casing, causing a bit more friction to be put on the gears, causing it to turn slightly slower than the other one.

3) Yes, the nubs were the wrong way, that is all fixed.

Thanks for all of the help!

[Redo91]

Originally Posted by LedLover96

1) The mounting holes for the CIMs were too close together. This caused them to come out at a slight angle. One plate-change later, that was good to go.

In what way were they too close together? How did you determine this to be an issue?

[Walter Deitzler]

Originally Posted by Redo91

In what way were they too close together? How did you determine this to be an issue?

When we mounted the CIMs, they came out at an angle, with the ends facing each other. This was because the gear in the center was forcing the the gears on the CIMs outward. Akash Rastogi, from team 11, said that they had this problem a couple of years ago, and fixed it by changing the plate. We did just that, and the problem was fixed.

[Akash Rastogi]

Originally Posted by LedLover96

When we mounted the CIMs, they came out at an angle, with the ends facing each other. This was because the gear in the center was forcing the the gears on the CIMs outward. Akash Rastogi, from team 11, said that they had this problem a couple of years ago, and fixed it by changing the plate. We did just that, and the problem was fixed.

It was an issues in 2012 with 3929. We are pretty sure that was the problem + other small factors. Swap of the plate fixed the issue, so that was our conclusion, but never bothered inspecting the issue further or actually measuring the dimensions on the plate that gave us problems.