If this is your first visit, be sure to
check out the FAQ by clicking the
link above. You may have to register
before you can post: click the register link above to proceed. To start viewing messages,
select the forum that you want to visit from the selection below.
You need a hf box or you can build a rectifier. It will then be a scratch start setup. Ideally you can setup a on/off type switch so you can keep your shielding gas around the end of the weld and stil stop the arc without leaving a crater. A little Google on homemade rectifier should get you a good start
The old school way of welding aluminum if that's what you mean... was DC welding on elec positive. The tungsten burns back quickly but actually welds pretty good. And I guess the ac DC version of that machine is just a added rectifier? So maybe that would work but if it were me I would sell the ac unit and buy something like a old econo tig. That way ya got it all