Actually, I bet this would be possible if the bots had a tiny magnetically actuated suction piston. You’d have to figure out how to create electromagnetic force

Actually, I bet this would be possible if the bots had a tiny magnetically actuated suction piston. You’d have to figure out how to create electromagnetic force in the z-direction independently from the x-y force though. Not sure if that’s possible. Heavy components could be held by multiple bots.