Is it even worth trying al on this machine. I am talking about a few around the house/boat projects only. There would be no spoolgun involved here. The stock size would be 1/8 sheet. Welds don't need to be of equal or stronger strength, but watertight would be a plus. 5356 alloy would be used as I understand it's the easiest to feed. I would be using straight argon and cleaning the material to death before welding.
Go for it! Keep the gun cable as straight as possible, back off on your drive roll pressure, use an oversize contact tip, 100% Argon shielding. I use my Millermatic 135 all of the time on 1/8" thick Al with good results. Good luck!
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