[Al Skierkiewicz]

Dave,
This is not a sure fix with all the vibration and bumping of the FET cases. The coating would eventually break out. It is far simpler to protect with a shop coat or turn the robot on it's side and let gravity take over. If your mechanical guys knew the cost of replacement, there would be more care taken around an expensive component. Remember too, it is not always just one wayward shaving. Many of the Victor failures I have examined were full of aluminum "dust" and shavings. Enough to wipe your finger across the board and come back visibly silver. Drilling is not the only operation, deburring creates as much or more and using compressed air makes matters worse. Use a vacuum when possible. Compressed air drives the metal into open frame motors, bearings, gears and electronics. Any of which will cause some form of failure.