[jimwick]

I assume you are talking about the Denso window motors.

We are working our way through this problem right now. We are using two window motors to wind up our shooter. Originally they were on the SAME SHAFT and they failed. DO NOT PUT THEM ON THE SAME SHAFT. What happens is that they don't run at the same speeds, one motor tries to do all the work and locks up, then second tries to do all the work at it locks up. Then neither will go forward or backward.

So what we are doing is putting them on separate shafts. We are counting revolutions and plan to put them on separate controllers and have them stop when they get to the proper place. Then even if they don't run evenly they will at least get evened up at the end of each cycle.

We have been running these manually and have succeeded in making them perform the intended function under manual control. The counting revolutions and control functions still need to be implemented. But at least they are now physically working without problems.