So after months of messing around with my setup, I give in, I must ask for some assistance.
Setup: Homemade table (R&P on all 3 axes)
Hypertherm Powermax380 with brand new set of fine cut consumables
250 millisecond pierce delay
95 volts on the THC
Cutting at 110 IPM
Material is hot rolled flat sheet 0.03
Cutting at 27amps (max for the machine)
I am just not sure what to adjust when I see "X" happen for example... i have read on the net about adjusting speed, amperage, and cut height based on dross, but I can't seem to find anything that doesn't make awful looking cuts.
Any suggestions? Is it my air quality? Pressure? Speed? Height? One thing *all* my cuts have in common is an exaggerated undercut (ie, if you look at the plate from the edge, the cut path is nearly 45 degrees instead of 90 degrees) The torch is cutting an inverted "V", removing much more metal from the bottom of the cut than the top of the cut.
Thanks for any suggestions, I finally have the table, cam, and everything else working well, if I could just get the quality up on the cut I could make useful things!!