Cutting 3"x3"x3/16" Angle

[geezer]

So the max amps would be best. I thought that the cut width (kerf?) is wider the higher the amps and there is more dross(?) at the bottom of the cut. I will have to get the cutting speed right also.

Here is some good reading that will explain about the two kinds of dross, upper and lower, the affect of cut height etc.: http://www.agelkom.com.tr/thc_vs_sensor.htm