Hello my first post so please be gentle. I wish to fit a z axis probe to my newly acquired ancient Chinese 3020 mill, I am running mach3 and the controller has the yoocnc t62-3ax board. I have got it working by connecting the probe directly to pin 15 of my parallel port plug on the computer and allocating it in the software, it works ok but I suspect I need to isolate it somehow.
any help gratefully appreciated
John