[KleinKid]

Seems super smooth. Thanks for posting all of this it's given my rookie team a lot of help. Our arm design is about twice as long as yours and we wanted to use the window motors very similar to yours. Could you foresee any problems with using two of the window motors on separate sprocket systems nearly identical to yours to power a longer and probably much heavier arm?

Maybe using only one window motor set on a higher gear ratio would do the trick but i'm not certain.