Thanks for the compliments DaveO. I've put quite a bit of work into this home-built setup. It just amazes me how well it works every single time I use it. I honestly didn't expect to have enough amperage control to be able to weld razor blades together, especially with a scratch-start. Everything I've ever read about "weldernators" was that they were very crude devices, that they were only good enough to make emergency welds to get your 4x4 home when you've broken something out on the trail. When I built mine I set out to change this way of thinking and I think I've finally gotten there with this setup. Hell if I had some High-Amp IGBTs I could build a switching stage on the output and get square-wave A/C out of the thing, but that's a little much I think. At least it is giving me a way to learn/practice TIGing while I'm raising funds for a PowerTig 250EX and a PowerPlasma 60. After I get those two machines I'm thinking about trying to get some welding/cutting work on the side so I can make the machines pay for themselves. Anyways, enough of my ramblings. Let's see everybody else showing off their TIGing skills, I'm sure they're much better than mine since I only have about 1-1/2 hours under my belt with a TIG.
I didn't see the picture you're talking about. Are you saying he butt welded the centers of the cans together? That would take some serious skill and serious amp control right there.