This kind of blew my mind. I don't know if it's old news here or not.http://www.youtube.com/watch?feature...&v=ygcm0AQXX9k
Reply:It's been posted before.My question is how are you supposed to tell the difference between the puddle and the solid metal touching the puddle. If you cant clearly distinguish the puddle good luck welding.Welding/Fab Pics: www.UtahWeld.com