Strange noises from the BaneBots gearbox/CIM combination.

[PhilBot]

We just test assembled our CIM/Banebots transmissions.

One unit purrs like a kitten. The other unit growls like a lion.

We disassembled the noisy assembly several times, and swapped CIMs but it still seems to have something not quite right. At one point the motor actually stalled.

We tested the CIM independantly and it seems fine.

At one point, when the CIM was off the gearbox, there was a distinct "crunchiness" when hand turning the gearbox output drive shaft.

This unit was brand new, and we'd never even mounted it to a chassis.

What do we do?

Do we try to dissasemble the entire planetary drive and try to clean it, or see if FIRST can get us a replacement, or do we need to go directly through BaneBots? It kinda puts a crimp in our progress.

Anyone else have a noisy drive?

Phil.