Well I guess it is my turn to learn.

Just got my 200dx on Tuesday. Got it wired up and all put together this morning. Then I got called away for a couple hours. The quick tip I learned was turn all the knobs to the left and turn the power up. Grabbed a piece of 1/8" and decided to give it a try. I have only seen someone in person once using a TIG. Never even held a torch before.
Attachment 7414

Doesn't seem bad for a first time. I am very happy with the machine so far. Welding Aluminum seems to be pretty close to soldering. Lot of things to do and new habits to learn. One problem I found right away. I am used to pulling the torch away... I have to learn to let up on the pedal first. I have been using a MIG for a lot time. Seems strange when done how much heat there is... Maybe still in the back of my mind thinking of soldering.

I guess I got carried away and tried a lap joint... Thin diamond plate with a bit of a gap in spots... No burn through but having a rough time heating the bottom sheet without burning the top one back. Ah... Learning...

Attachment 7415

Not bad ... it'll come together ... yea, you can't pull the torch away quickly keep it directly over where you stop w/ post flow. I did it the hard way, for the first two weeks I did everything T2 ... went through $35 worth of gas and $18 worth of filler ... then hooked up the pedal for the first time; what a difference.