Hello all, I wanted to get some advice from the experienced readers on here. I have a project I am dreaming up in my head for the m715, and figured its about time I learn to weld. So, what is the best type of welder to learn on that will be heavy duty enough to weld a roll cage, motor mounts, cross members, etc. There are some cheap ones on craigslist in my area but I want to get one that will penetrate the heavy duty metal I will be using. Thanks