[Kevin Sevcik]

Adam and Rohith,

I'm inclined to strongly disagree. The Thor 883 SC is specifically designed to handle ludicrously high currents and current surges. 150A to be specific, and surges of 300A for less than a second. If that's not beefy, I don't know what is. If his motor draws only 120A continuous at stall, then the Thor should just laugh it off. The only reason it's supposedly designed to handle spinning weapons is because it's only capable of one direction, no reverse.

Bruno,

There's obviously a little translation difficulty here, but I'll try to help.

First, are you sure you've wired the motor correctly? Wiring is completely different from a normal Victor. The User's Guide shows that you wire + and - on the battery to + and - on the battery side of the Thor. Then + and - on the Motor side of the Thor BOTH go to ONE side of the motor. The other side of the motor should be connected to + on the battery.

Second, are you sending the motor a full forward signal of 254 from your program? Anything less would tend to weaken the motor.

Third.... I'm out of ideas for the moment, but if you can better describe what you're doing, it might help.