I have a spoolmatic 30a hooked to a miller matic 250 that is used for aluminun and am having some problems with it. We use either .035 or .025 wire and have the drive rolls to match, two things are happening, it's either burning off inside the tip, or it acts like it's pulsing while your welding and I don't have a pulser. We have to tighten the tension on it with pliers to get it tight enough to weld but then the wire spirals outta the tip and it leaves grooves in the wire from being so tight. The machine is set at 19 to 21 and the wire speed on the gun is 5 to 8, the machine welds great sometimes and sometimes I wanna throw it out the window. Straight argon is used and I still get a lot of black around the welds even after cleaning with a tiger disc and a ss wire wheel. I also have a Dialarc 250 A/C-D/C machine and want to know if Miller makes a machine that will hook up to it to give it high frequency, pulse, etc. I appreciate ya'lls help,,, Outlaw
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