First aluminum run in 14 years... some advice please...
Neighbor gave me some aluminum, it's whatever alloy you get from Home Depot most likely, 1x1/4 bar stock. Hit it with a roloc till it was clean and shiny, started with a 3/32 with a point (been a long day, didn't think about it) sharpened to 2.5x diameter. 3/8" projection on a 6 cup, 3/32 4043 filler.
Set it to AC, abt 9lpm Ar, 150 amps, but I was playing the pedal so I don't know exactly how much. Set the balance and frequency both straight up on my 200DX.
Width was a factor of arc length, had a bit of issue early on, broke my hand last weekend so it took a bit to get to where I could control the torch.
Ran a few more
Played around a bit with balance and frequency
The whole time, it was spitting and popping, not a nice smooth sound. Had a few times where it was just did not seem to want to put out an arc cleanly and a few times it felt like the machine cut out. I had the bar on the steel table, clamp had the curve on the bar, double flats on the table, so I doubt it was a ground issue.
Here's one spot, not sure what the hell happened, tried adjusting the balance from about 10 o'clock to about 2 o'clock, no bueno...
Thought I had it ready to add and then... turd
And just below that one, I went back to both dials straight up, put on my TIG Finger and ran a nice pretty one.
So, what about the popping and stuttering, any thoughts on the half-second drop-outs, felt like it just shut off momentarily, like a brownout or broken ground, but the ground was to the piece itself and the table the metal was sitting on...
Trip Bauer
Former USN HT
Everlast 200DX New Model
Hobart Handler 125 MIG
Van Norman #12
Atlas 12" engine lathe
'98 RoadKing - 84 Ironhead - 59 Ironhead