I've had my plasma table running now for about 4 months with zero problems cutting up to 3/16 thk steel.
I recently had to do a job where I had to cut 3/8 mild steel and have run into a bit of a problem.
When piercing the 3/8 plate, the splash of slag that ends up on top of the plate is higher than my cut height, which results in my torch crashing into it.
I'm using a Hypertherm 45 and CandCNC Bladerunner electronics.
My pierce height is .150 and cut height is .060 as stated in the Hypertherm manual. I've tried increasing my cut height to .080, but the problem persists.
I've also increased my delay time before plunge from .9s to 1.2s, but no luck.
I've also decreased my plunge rate to 15 in/min from the recomended 32 in/min.
What else could I try? I've had the torch not crash on a couple of parts, and the resulting part is perfect.
Thanks for any help.