Quote Originally Posted by JAZZCNC View Post
1.5mm/2 for steppers and for signals to drives, limits etc then 0.75 or0.5mm/2 will be enough. You could also use shielded Cat5 cable which as 8 wires in twisted pairs which is good to use in the control box to cut down on wire runs.
Use CY cable. Never use CAT5 cable for anything that moves regularly unless it's flexible patch cable. Normal CAT5 cable will work harden and fracture.