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Penetration appears a little lite in areas, but close?
Or........should I take two weeks off then buy a Thermal Arc 185 or Miller 180? Reality is I need a RS600 more than a TIG right now.
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still too much build up on top, tacks spaced too far apart and not enough penetration. the little craters in each of the welds should dissapear when you do your next tack. hell, i dont know if i do it correctly or not, but probably 40% of my previous tack will go molten when i do my next tack. too much build up on top makes it like trying to weld sheetmetal to 1/8" plate.
i would turn the heat up a little and hold the trigger for less time. that, or turn the wire speed down a little so you can hold it for a little longer without getting too much build up.
how long are you holding the trigger for? im a "pull-1-2-off" kind of guy. sometimes its forrest gump counting and other times its an auctioneer, but i find a rythm and go from there.