Using the .035 that cam with the gun and the instruction settings for 1/8 plate.
Works like a plasma cutter except the hole is huge. Tried lowering the settings to reflect what was on the eastwood video.. still massive burn though regardless of how fast I go.
After 2 tips and about 2ft of aluminum I bought some .030 wire and tried that at the lower settings in the video. That worked great and I got good penetration and nice looking welds. Has anyone else had this problem and if I wanted to try 20gauge, what would the setting be??