[dez250]

Not only will you have the risk of frying the controller, but also the spikes and victors you have the chance of zapping and destroying. If it is going to take a few hours to remove the RC and other electronic, then you might have one other option. Can you remove what you need to weld and weld that off of the robot and place it back on when you are done. I would not suggest MIG welding a robot that has its electronics still attached.