Hi fellows!
I was printing in a graber in PETG in 240º / 90º, but I had not installed an external mosfet.
Because of this, my ramps burned one of their pins, user to receive the 12V from the PS to the hot bed.
Then, I decided to change my ramps shield, and remade all the wiring.
After this, the motors stopped to move.
I have already checked the reference tension (Vref) at the drivers, and they are all ok.
Does anyone have any hint?
Thanks.