[BobNovas]

I've been trying to learn how to butt weld 1/8" sheet steel with a MIG torch. 1/8" is close to 10 gauge, which is what thickness I think body sheet is, but being a little thicker should be easier. Besides, it's what I got.

So my question is, how the heck do you make a good butt weld with this stuff? I'm getting a big bump on top of the joint, and only partial penetration (no more than 2/3 the way thru). Any ideas as to how far apart the metal should be, whether the edges should be beveled (and what angle) and what to set the wire feeder and voltage to (miller 175A MIG machine).