Very cool site you have here! I am gald I found it!! I have a little 120 volt Century welder. It is kind of old, but it was free.:mrgreen: I usually do not have problems with it, but for some reason I cannot get my settings correct. I am welding some 18 gauge steel and my welds are turning bumpy. It appears I am getting partial penetration and sometimes blow through. No matter what I do, however, I cannot seem to get a weld that is a puddle. They all have little bumps on them. Can anyone tell me what is causing this? Thanks!