[EricH]

Originally Posted by RMS11

Yes, I was talking about B. I was thinking that we would have preset controls to go to 0, 90, 180, and 270 degrees. We would turn at these speeds for the preset commands. We would do some testing and would have it programmed to turn at slower speeds when we turn the modules manually. Would this work?
I will try to calculate the torque needed, if i can find the coefficient of friction for the wheels we are going to use.
As for the pots, we have discussed sensors but have not planned mounts yet. I was thinking for mounting purposes that we should attach it to the shaft of the globe motor. I am kinda woried though about the wheels shifting into slightly different angles. Should this be a concern. As for other sensors, for the test system we are going to throw on as many sensors as we see a possible use for, for programming practice and to see what works well and doesnt.

I would say that it would work, or a function that "steps" the modules x degrees left when a given command is sent and x degrees right on a different command could also help. Definitely slow it if you're rotating them manually.

For a pot or encoder, you would want it as close to the rotating part as you can get it reasonably for best accuracy. One per wheel would be good, though you could probably get away with one for the system.