This shouldn't be that difficult.
Dan
Quite right Dan, it should not be that difficult.
I am running Mach3 version 3.042.020 and using the latest DLL that Art has provided. (I don't think my xml would be helpful as pin assignments are different and I work in metric units - not only that, I don't want everybody to know it is licensed to Papa *********X
)
One thing comes to mind...... The pluugin reduces my laser power density as the axis slows (decelerates) at the end of a line and ramps it up again as the axis accelerates during the start of the next line. If it didn't do this it would cut deeper at the start and finish of each line.
It is just possible that the feedrate you have set is not enough to see any output on the trigger pin so try increasing your feedrate to 300 or something and see what happens then. Just a thought.
Tweakie.