Quote Originally Posted by DrSpaceman View Post
I use 150-160 amps, 125Hz, 30% AC balance (as set on machine), 50-60pps., 30%pulse amps ratio and 60% pulse time on. This is on a 250EX. Same settings work at 180-200pps. and at least up to 205 amps. I also had a hard time with pulse until i found these pulse settings on weldingtricks etc. There is a lot going on and a lot of coordination in TIG welding. When you add pulse there is just more info to process and my brain couldn't handle it. Anyway i hope this helps.
that's all well and good but this guy can't weld aluminum. it is best to start at the most basic level. get some clean al, use default settings, put the amps to max, plug in the foot pedal, and light up your tungsten until you get a feel for that point where the material transitions from solid to liquid. i did not look to see what winky's machine is capable of so i should not have thrown out the 3/16 's thk suggestion offhand.


if you like jody's videos here is one, the one you should start with.

http://www.youtube.com/watch?v=rR8Rlpf0ELQ