Thread: Wierd grinding noise from the Banebot transmissions
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Unread 22-02-2007, 10:01
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Re: Wierd grinding noise from the Banebot transmissions
Others have had problems with the 56mm transmission with the two motor adapter, and the problem was that they inadvertently removed a large, thin, black steel plate from inside the transmission while installing the adapter. This resulted in the gears rubbing against the aluminum body of the adapter, instead of that hard steel plate, and the soft alumimum and soft brass gears were getting ground up.

I don't know if this is your problem...but it could be....

Also there seem to be issues with adjusting the end play in the transmissions, I don't know the specifics of the two motor adapters, but with the single motors you need to check carefully to make sure the gear and motor shaft are not extending too far into the gearbox, and also that there is not too much free play (which allows the output planet carrier to be too loose on the output shaft).