Beaver 53,
How interesting. I thought you might be mistaken on the polarity issue, so I ran down and looked inside my Beta-Mig 200.
I have been spewing wire with that thing for eons, both MIG and FCAW, and have never touched anything besides the HI/LO transformer taps.
Sure as heck, the little diagram from Hobart shows DCEP for all the MIG wire, and lo and behold, DCEN for the FCAW process!
I have never swapped polarity, and the flux core weld has always come out very nicely. I always use the flux core with shielding gas...maybe that makes a difference in weld quality.
Just for grins, next time I use it with the 'innershield', I will switch polarity and see what happens. Thanks for the interesting heads up..you DO learn something every day.
Stuart
