I'm sure I'm not the first one to think of this, but I can't find such a thread. Would it be possible to weld (say, with .030 wire) a very small, thin steel part with the wire feed roller disengaged and maybe an inch stick-out by just touching the wire to the small joint and then pulling the trigger? Would it leave a very small tack weld? I don't have a Mig machine yet and was just wondering if this would work on tiny joints.