Blocked Nema17 Stepper motor (1 reply)

Hello everyone,

today i was running one of my first ever prints.
It went perfect, until my x-axis blocked en the whole print was failed.
I have a Nema 17 stepper motor, i feed it 0.4V.
I can't even turn the motor by hand when it's off.
Does anybody has a clue?

Thanks
Vancoillie