Has anyone ever used one of these conversions. Seems like it work for just hobby use but I'm wondering how thick of material this will actually weld. I'd like to weld some 1/2" aluminum but can't afford a "real" TIG.
http://www.harborfreight.com/cpi/cta...emnumber=45966
http://cgi.ebay.com/ws/eBayISAPI.dll...329573828&rd=1