We solved it finally, but have switched to Mach2, as we have noticed a new problem when cutting 2D files, the Z goes lower than the actual surface and it's random, we know the bits not falling out, we know that the Z is not dropping, and the Z DRO is a correct reading, and the file it's self is 100% as we have run it on our other machines...they are not running Mach.
We are suspecting Mach may have an error in the coding ? not sure at this point...real frusterating as it has stopped us from machine the customers items for 3 days now...so we are trying Mach2 to see what transpires, if it all goes well then the culpert may be Mach 3....
Jmaxy