Thanks for the input, I thought that was how it was until it didn't work.
First I terminated the two lobes with THC up and THC down. I viewed the brain and had THC up lit, but nothing from the Zaxis.
Then I tried terminating with a jog Z+/- but no movement while running code.
Next I tried an imaginary port/pin output, and mapped it to THC input by using the same port/pins for input. Still nothing.
Kick me to the brain discussion if you think that's where I ought to be.
For some reason code will run if either THC led is lit, or Torch on led but not both at once, which is a bugga because I wanted to use both these as brain inputs.
Also Mach seems to be ignoring the limit/home switches by activating manual override, and output 6 is on most of the time even though it is mapped to nothing.
This is all getting a bit much for my poor little brain( the one in my head) I would love to buy a THC and plug 'n' play but that's not the way I roll. I'll do it the hard way and hopefully learn a bit along the way.
Cheers,
Tim.