Ik, I'm new to stepper motors, but not to general electronics (in other words I can handle a multimeter, oscilloscope ok).
I've sourced some stepper motors out of some old dot matrix printer. Their spec is identical to the picture number 5 on this page....
http://www.engadget.com/2006/06/29/h...achine-part-1/ (ie 3V & 3.5 ohms & 1.8 deg)
My first problem was working out the wiring, so I followed the guide here...
ok, so now I know which is coil 1, coil 2, coil 3 & coil 4 for my stepper motors.
But my stepper motor driver board's instruction manual, doesn't talk of indiviual coils, it talks of A+ & A- and B+ & B-
Now, then using this earlier guide/diagram...
In my situation, coil 1 = red wire, coil 2 = blue wire coil 3 = beige wire, coil 4 = yellow wire
How do I wire up to reflect this driver board instruction manual
A+ is coil 1 (red wire) A- is coil 3 (beige wire)
B+ is coil 2 (blue wire) B- is coil 4 (yellow wire)
Is this right?
Ok, now what should happen when I connect the stepper motor to the driver board & power it up? (I'm only connecting the x axis for now)
Should there's be a hum from the motor, silence ...what?
Final question my driver board manual talks of setting the axis current - how do I determine what this should be for the motor I mentioned above?! (I'm assuming that becuase the motor spec says 3V & 3.5 ohms ....then I=V/R, therefore 0.86A?)