There obviously needs to be a safety stop in the software to cover this situation where there is no ‘metal’ to be worked upon..............
The metal in this case is aluminum, to magnetics is out
Adding sensors would be like adding a sensor to a hammer so you don’t smash your fingers. It would be expensive, add zero value and provide an additional source of failure
Using Lock out/ Tag out as a BASIC means of operation would have prevented this. A Robot that grabs fresh cast aluminum weighing 100-1500 lbs doesn’t know or care if that piece is flesh, plastic or metal. It will do what it’s coded to do. This seems like a basic safety issue
“There obviously needs to be a safety stop in the software to cover this situation where there is no ‘metal’ to be worked upon..............”
The Three Laws of Robotics