What setting do you have the AC balance on? Metal thickness and amperage? Tungsten size and type? Cup size, argon flow rate? Could you take a pic of you settings? That would answer a lot of potential questions. Can't take a pic right now, as I don't have an indoor shop (I can only set up outside, s...

rake wrote:What tungsten are you using?

Inverter based machines do not like green/pure tungsten.

5/32" blue tip (Lanthanated).

GreinTime wrote:Out of curiosity, are you using high frequency start and still trying to lift arc/scratch start?

Yes, using HF start, no, not trying to scratch start.

Hi. First off, the last time I really did any Aluminum welding was 35-40 years ago with a scratch start setup. I recently purchased an Everlast Power Pro 256, and it works fine in dc TIG, Stick and Plasma cutting modes. However, I can't get it to strike a stable arc in AC mode on Aluminum. I've trie...