Well I was trying to weld thin metal. I'm not sure the thickness but less than 1/8" and it would just burn right through it. I was just practicing so it wasn't a big deal, but I eventually want to do some repair work to my old Mustang.
I narrowed down the problem to one of two things: the wrong wire size, or too high voltage. I have a Clarke MIG 130 amp welder and I wasn't using Argon. I was using .030 Fluxcore wire. I had the voltage setting on the welder at 1 which is the lowest and I had the wire feed speed very low so that it wouldn't just go right through the metal.
I couldn't figure out how to make a good weld. What should I do?