I'm told that the welding suppliers in Colorado (Denver - North) sell "industrial" grade helium, which is also balloon grade, at 99.5% He. Is this pure enough for use with aluminum?? -- I installed a Y on my Square Wave & am "sneaking a little in" like Roy & Jody do -- fl...

Hi OlMac - I'm not sure how much you want to spend, but once you get started with a machine, it's nice to have some extra $ around to use on gas lenses, cups, etc. Following a recommendation from a friend that makes a living with a TIG machine, I recently purchased the Lincoln Square Wave TIG 200 fo...

Hello Clavius, I didn't notice anyone mention settings in the responses I read. I also have a SW200 and am practicing OCJs on aluminum, using only a piece of steel square tubing & some clamps to line up the aluminum sides. So I don't have backing all the way into the inside corner, but there is ...

Thanks, guys. Appreciate the feedback.

One of the most important things to consider when welding cast iron is weld prep. How you prepare the surface to be welded will have a great impact on weldability. Rule #1: Never touch cast iron with an abrasive . Most people break this rule, using a grinder to cut a nice groove in a cracked piece o...

Has anyone added a Coolmate torch cooler to a Lincoln Square Wave 200 ?? I like the feel of the #9 torch, but it's rated 125 amps. I want to weld heavier aluminum and add helium to push the limit of my Square Wave 200 up some, and was thinking of getting a #20 torch (liquid cooled) and adding a Mill...

Thank you, Coldman & Oscar. I figured it was something like that - possible, but not recommended/worth it.
This forum is awesome.

Is it possible to speed tack like Jody does in his welding rod rack video (http://www.weldingtipsandtricks.com/tig-welding-rod-rack.html) using a scratch TIG setup & a torch switch? I'm doubtful, but I'd really like to know if it is possible, because it would give me a good use for my Thunderbol...

Has anyone tried this cup? Why does it exist? I accidentally got one to use with a standard gas lens for my 3-series (17) torch, thinking it would be a bit smaller than the 3AG12. It looks like it's made for a stubby, but the threads don't match. What's it for?