This is driving me insane, I'm having problems with my CNC router I have two stepper motors driving the X axis and after cutting five or six things one of the stepper motors miss a step or two and of course it breaks the end mill then it will work again for another five and six parts, then it does the same. Now I have rewired the router with CY cable including all the wires in the control box. I have all the shield wiring in the control box connected to an earth at both ends and I have the limit switch's shield earthed at the control box only and I have the stepper motors shield connected at both control box and stepper motor I have also tried for the stepper motors just connecting the shield at the control box only, and its always the same.the two stepper motors on the X axis go out of sink one will run the other will stop for a few steps.
At times when it is goes wrong as the whole machine stops for less than a second like someone froze the g code.
I need help again.