I built a cnc router using nema 23 270oz. steppers and the tb6560 board. I can jog both x and z axis at slow speed but the y axis just vibrates. I even replaced the tb6560 with a new one and the problem is still there. All the axis will move at high speed including the y axis, but it will not jog at low speed. I've tried about every setting there is with no luck. I'm not using micro steps.