I put together an RC Timer 2 axis gimbal last night. It uses this controller: http://www.rctimer.com/index.php?gOo=goodspic.dwt&goodsid=884
It was a little fussy to tune, but got it working OK. It's smooth, steady and tracks well. But, I noticed that the large motor driver chips on the controller circuit board get hot. After about 10 seconds they're so hot that I can't hold my finger on them. (I'm using a 3 cell battery.. It's supposed to be able to take a 4 cell).
Is this heat normal, or do I need a new controller, or do I need to tweak something?