[nevillewilliams]

Why would Foamworks 3 work on my computer and Mach3 only arms the motors when the Estop is activated

[Al_The_Man]

Not sure of your question?
Unless you mean the motors are only enabled when in e-stop, if so you have some logic backwards somewhere?
Al.

[nevillewilliams]

Yep thats seems to be the problem
And look as much as I can I can't find it
It's going to be a simple mistake and I know I will kick my self when I find it

[Al_The_Man]

I don't know how your E-stop is implemented but it should be a hard wired circuit that informs Mach through an input that an e-stop has taken place.
And the stop output From Mach in turn should also enable the hard wired circuit.
Al.