I'm having some trouble getting my THC300 working consistently. Many times directly after the arc fires with the m3 command Mach3 will not continue with the program even though I get an Arc OK inside Mach3 and on the THC300 controller. I'm sure it's probably something in my profile. I am testing with a very simple straight line cut.
N0030 G20 (Units: Inches)
N0040 G53 G90 G40
N150 M3
N200 G1 Y48 F100
N300 M5
N310 M30
M3 is just DoSpinCW() and I have my metal on a slight slant to test. Sometimes it works well and other times Mach3 will not move on to line no N200 but I can see the z axis changing from the THC. I am using no dwell.
Thanks for any help.