Thanks for the further input guys...the stepper driver did not blow at 12volts , 1.2 amps,,,,
it happened as i was using 24 volts and going up through the amp settings....
and yes irving 2008, that is what i am using....and i thought buying big stepper motors was better than buying Nema23/24s and then finding out they did not have the power
Thanks for your advice ...stevep