Team 2980's Open Source FIRST BOT

[Brandon_L]

Were having a big problem...

We are using two window motors into a small sprocket to a bigger 60 tooth sprocket via chain, similar to what you guys are doing:
http://i187.photobucket.com/albums/x...g/DSCN1408.jpg
(no chain is on in this picture..)

The entire setup works, but the motors like to lock up and when they do we have to put full power on them for them to unlock. The result being the arm slamming into our frame or flying into the air. Motors also tend to heat up a bit when this happens, but nothing extreme. We have two bungee cords down the back as a counterweight.

What did you guys do to prevent it from locking? We don't have a clue

EDIT:
I saw someone mentioning that having a jaguar controlling the arm might be doing something. I don't know if this is true, but we are using two jaguars.