Thanks for the reply's guys. After I posted those pictures, I found out the barb side of my regulator, where the threaded part is... its cracked. Looks like a casting defect. As you were saying about the lost argon, it was venting at the tank. It was slow enough that I couldnt hear it until I stuck my hand around the nut. I dunked that end in water and it was a steady stream of bubbles. I had it set at 5lpm throuhout my welding. Im going to contact support tomorrow and see if I can get a new regulator or parts out to me.
To answer your questions about what im welding on. I have a clean steel table that I put together as my 1st project. The last picture has some sticky label stuff on the back, so im guessing thats it from what you guys are saying. The other pics are a subb-umper that was pulled off a truck. Its unpainted and un-coated on both sides.
I originally started with the foot pedal, then moved to 2T. It seemed it was the only way I could get a good bead going. Those welds below were with the pedal attached, for experiments. Once I get the regulator sorted out, ill try what you guys suggested and post back with results
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