Since we have had a question about mig, I figured this is as good a place as others concerning a question my son in law has.... He has discovered the joys of the tig welder in the past 24 hours, but has run into a dilemma. He is welding reinforcements into a cargo trailer that is being converted to a travel trailer, and all was fine until he needed to weld the new inside ceiling braces. What he, and I by extension, need to know, is what is the trick to welding upside down?