I finally managed to get my plasma table operational for the first time this evening and sucessufully made some great initial test parts out of 1/4” mild steel plate. I’m using a Hypertherm 45XP with a machine torch and programmed the tool paths with SheetCam. Hypertherm has a feed rate sheet that was useful for the first try and I dialed it in from there.
At any rate, you can tell where my cut starts on each part (see pic) but otherwise the cuts look great. I have the pierce delay set at 0.6 sec (as recommended by HT) and designed by parts to start with an arc lead in that is 0.1” long before it actually gets to cutting the part. I also have a .05” over cut at the end of the cut (which could very possibly be causing the bad edge).
I have a bit of work to still do in order to get this thing dialed and plan to mess with it more tomorrow. Can anyone recommend some things I can try regarding my setup to eliminate the rough start/finish to my cuts?
Thanks for any feedback!