I have a 4 axis driver board and my Z axis socket for the A3977 driver is bad. I am not using the A axis and I am needing to know how I can get the A axis to work as the Z axis. I have a Mechtronics 4 axis board. All of the axises are socketed and driven by individual A3977 drivers. There is access at the rear of the board to the other pins not used but I can't access pins for the step and direction for the 4 axises. I primarily use the Cut2D software for my programs and I don't know if you can change "things" in the software which would be the simple way to make the A axis into the Z axis.