I have a PM35-048-hpi2 stepper motor conected to a 3d printer more specific to x axsiz od the test program for arduino end ramps 1.4 the motor rans when i apload Marlin Firmware the motor dasen do enifing the http://www.datasheetarchive.com/dlma...DSA-442772.pdf for the motor end is unipolar. i calculate Axis steps per unit end is 25.60.i wrote to marlin end nafing.