Hi,
you need to email them and ask specifically whether their Mach4 plugin supports THC. The last I heard is that it did not.
If you have a look on the Vital Systems website you will see that not only does their board and plugin support THC they also have
a custom THC screen that allow you to enter all the parameters.
To my knowledge Mach4 does not have such a screen. There has been some talk about NFS doing so. Various controller
manufacturers are 'waiting' for NFS to include some features like a THC screen before they work on their boards to support THC.
That's a cop out, Vital Systems have a working board and plugin AND made their own custom screen.
I have seen at various times comments from Warp9 TD (ESS), PoKeys (57CNC) and CNCDrive (UC300) all complain that because
Mach4 doesn't have such a screen 'they can't possibly support THC'. That's rubbish....its just an excuse so they don't have to do the work
and make the investment to support THC.
You need to talk to PoKeys direct and get confirmation about their support or otherwise of THC for Mach4......don't be confused by THC
support in Mach3.....you need to know about Mach4's status.
Craig