Here are my other two welders, both Lincoln’s. Like I said my reason for buying the Titanium welder from harbor freight was so I could hook it up to an aluminum spool gun. My Lincoln was a pain in the butt to convert the liner on to run aluminum and aluminum being so soft didn’t run very good. I lucked out on my Tig welder as I bought it from a shop that builds trailers and they wanted to go bigger. When I took night classes for Tig welding I trained on the exact same machine