I have this same problem, but my x axis works fine, y axis does nothing, and z axis works some times, I'm going to try the test code and see with happens.by littlebigmachine - RAMPS Electronics
This may be a dumb question, but I have the LCD sd card addon, and have the D1 diode in the power arduino without USB. But can I connect the computer to it still? Safely? Since now the arduino will be getting power from two places...by littlebigmachine - RAMPS Electronics
Repsnapper "power on" button? can u make this enable/disable? my extruder steppers get hot when idle, also would like to add to end of Gcode, so when i'm not around to turn off or disable.by littlebigmachine - RepSnapper