Robot not driving and programmer is unavailable

[Dr. Poptart]

Originally Posted by Whippet

I would use a PWM splitter from the KOP to connect he motors from each side to the same output on the DSC...

Thanks, I was thinking of doing this from the start but I just got around to it. That solved our movement problem, but now we've got another two problems on our hands. The first one we can fix - when we move forward, one side moves forward while the other moves backwards. This behavior persists through all movements as expected. We can solve that.

But we're also getting some issues with just driving. The left set of wheels will only move at very low speeds and behavior is unpredictable; sometimes it behaves as explained, and sometimes it just won't move at all. The right side can handle a bit more speed, but when I push our control joystick all the way forward the wheels stop and there is a stripping sort of sound in the gearbox. An outside mentor has suggested that perhaps one or more of the gearbox motors' keys may have slipped off. We're looking into the issue now. Does anyone else have any other ideas?