Only been able to weld aluminum since Monday and I haven't gotten much practice in. I got pretty decent at running straight beads on 1/8" plate so I figured I would give this a try.
I didn't back off the pedal enough at the end on the left side. My pedal is a little touchy as there's a dead-spot in the potentiometer which I plan to replace. I don't think this is too bad for my first attempt at this sort of joint.
Used these settings.
1/8" Aluminum Sheet. 90* Fillet.
Machine: Airco Heliwelder IV
Amps: 135A on the panel. Used pedal to regulate.
Pre-Flow: 1s (Not adjustable)
Balance: My machine doesn't have a balance knob, so whatever it's hardwired for. Can't find any info on this.
Electrode: 3/32" 2% Lanthanated with a truncated taper.