I have a big problem with my Vertex K8400, I think it is not working after calibrate two DRV8825 stepper driver board, I burnt one of them, I bougth and replaced all of them, but z axis is never working. We test everything, in the screem all look normal but the z motor don´t work.
I am looking for buy another mainboard but first I need to know this is the problem, the new mainborad is very expensive 120€. ¿There are any way to make sure the problem is the mainboard?
I bought this stepper drivers:
I need help,