i just finished my cnc-plasma and made my first cut 2 days ago. i borrowed a a budget plasma-machine and hooked it up. i managed to get a descent surface finish on 2mm mild steel that was coated with something grey. i got quite alot of dross on the backside but my problem is that the cut is angeld alot, atleast 20-30 degrees. i tried diffrent amps on the plasma-machine, diffrent feedrates and torch-height. i also changed the nozzle. if you look at the picture, the edge closest to the camera is angled more but has almost no dross on the backside. the edge away from the camera got rougher surface, more dross but the angle is better.
i also cut some 5mm stainless, probably 2333 but this was to much for the machine. you can still see the angle here more clearly.
same thing with the thicker piece. the side with the dross got rougher surface but less angle.
anyone got an idea why this is happening?