I'm new to the CNC world and in the last stages of building my machine. I have Mach3 installed and have motor movement on all 4 while testing using the arrow keys on my keyboard. However I have 2 motors on my "Y" axis but only one spins when running the Road Runner G-Code in the Mach3 demo. How can I get both motors synced up to run together?

Set one as A and then make sure its set as a linear axis in General Config then you can select to slave it with Y axis, its from Config menu. Restart Mach and it should now move when the Y moves.
Hood

Worked as described....much appreciated!