Ok guys my boss bought a miller econotig welder 220v ,I weld on mig but this thing I can make it weld right, I seen the cd like ten times ,set up the machine the way it said and is not melting the aluminum even in the highest amp set up , we got the 75/25 argon (that what I was told it uses) I am trying to make my oil catch can and it doesn't work when it start to melt it a little is like is burning the aluminum . the only feature I can weld with it is the stick with aluminum rods but I don't like it to much the way it looks . I don't know if we are using the right tungstent and I can even make the damn ball on the tip on the tugnstent? maybe wrong setting I don't know ,any help will be really appreciatted , Thanks....omar