I have been running my table nonstop, cutting several hours a day, four days a week without a hiccup.
LOVE MY CROSSFIRE.
I ordered and installed a new pt60p machine torch with the original torch mount that came with the table, and cut 700-800 pierces and an hour of torch time with no trouble. LS machine torch mount finally arrived yesterday so i installed that, and let sheetcam install its upgrade, and now my thc is suddenly going nuts. I broke my own rule and changed a few things in the same week. smdh.
watching the torch, i can see it touch off the metal, raise up, fire, and move down when it starts to travel.
in the middle of the cut, torch sometimes goes down and drags on the metal hard enough to move a 33x48 peice of 1/8 plate, sometimes raises up to where the torch looses arc.
sometimes when trying to restart a cut it fires, then tells me it has no voltage even though i see it fire… I move it to a different part of the line, sometimes it works, sometimes more no voltage errors.
I tryed doing the THC control tests in fire control, and sometimes I get a pass, and sometimes i get a fail.
I have checked:
changed tips 3 times trying both .9 and 1.0 tips
ground clamp is on the work, with clamp contacts cleaned. and cable looks undamaged.
cleaned IHS contacts on z axis
cutter mounted on wall above the table, has not been moved.
wires to THC look good, and appear to have good connection,
checked tool settings in sheetcam,
pierce hieght .125,
cut height .06,
86 ipm,
plung rate 50.9ipm,
kerf .045
pierce delay .08
same settings i have been using for months, except a lower speed for thicker steel.
I am trying to cut 1/8 plate with a program i have used many times on 14 gauge, but changed sheetcam tool settings for the thicker cut.
using primeweld cut60, .9 tips, 40 amps, 60psi.
at a loss for where to start. machine torch was working, so i don’t think the problem is there, and i don’t know how to go back to the previous version of sheetcam, without doing a restore point on the computer, and losing a bunch of art work i recently finished working on.
any ideas?