hi i am a mechanical eng. student at turkey. i wanna build up a cnc. i am trying to make electronic controls first of all. i try to made your card but i couldnt use it?can you help me?
i made this interface card http://pminmo.com/4axis/4axisinterface.htm
and i made this control board for my unipolar motor http://www.pminmo.com/discrete/osunilayout.pdf from(http://pminmo.com/4axis/4axisinterface.htm)
i test my control board like documentation says it works? 2 leds are giving lights?
i connect interface card and this control card with cables as well (like in picture)http://pminmo.com/discrete/t_dasystem.jpg
i give voltage from my pc cpu s 12v cables. it works on control unit i said this before. but when i try to hook up interface card and control card together into power cable is getting too hot that i cant able to touch it. and when i hook the step motor to control card and give ground that is shown at documentation it gives a smoke and then i take it off fastly.
so with my poor english i try to tell my problem.
can you help me please.
this is my term project. it is so urgent please help me. i am not well known about electronics.
sorry for my poor english thanks.