I have had a mixed success with my cnc endeavors because it is something I find difficult.
After purchasing several stepper controllers to hook up to my computer's parallel port, I finally found one that worked and, using the free version of MachTurn, finally got my Taig Lathe conversion to work. I was just about to purchase a license for Mach 3 when the computer blew up and it was back to square 1.
In desperation I purchased the Acorn system but finished up putting it back in the box. I still don't know if the Acorn was faulty or if it was just me.
I am deeply suspicious of some of the products from some internet suppliers but purchased a USB Mach 3 controller (the red one with the eagle on it) cheaply and wired that up. Both motors jog normally but the DRO on the Z axis does not function.
The USB controller looks like the real thing but I am left to wonder if I have purchased another dud board.
I have worked my way through the ports and pins installation but have not been able to get the Z DRO to move. The X DRO works normally.
Don't know what to do next so would be grateful for any suggestions.
Woodie