How long should it take to heat tubing to accept the filler rod? I can adjust my ampe from very fast to slow. I am running it at about 85 ampe and seemed like a reasonable amount of time to heat.(5-10 seconds) I burned through a few places. I think I had the heat concentrated in the wrong spot. Do you guys adjust the amps once you get welding, or is it left alone?
Thanks for the help! markadams