Is it possible that your X and Y axis motors are swapped on the controller?
EDIT:
Here is another forum post with the same thing: Finally finished building my x-carve
Motor wires swapped on X and Y axis.
Is it possible that your X and Y axis motors are swapped on the controller?
EDIT:
Here is another forum post with the same thing: Finally finished building my x-carve
Motor wires swapped on X and Y axis.