Y-Axis Not Working
I just upgraded to the MK2 and tried to auto home and the x-axis worked but when it got to the y-axis part the y-axis would not move. So I tried to move the y-axis through settings and it was not moving smoothly. It was very bumpy and would only go a couple centimeters. I have double checked the wiring and that isn't the problem I don't think. 
Here are the links to the videos of trying to auto home and move the y-axis.
 https://drive.google.com/open?id=0B2pPc2svBawwSDdMOEFhd25jTkU 
 https://drive.google.com/open?id=0B2pPc2svBawwSVp3WjhaNV9DRTA 
Re: Y-Axis Not Working
Hi,
Is the bed moving freely by hand (power off) ? 
If not try to remove the belt and find if the resistance is from the motor or the bed assembly. 
You can also try to move Y axis like in your second video but without the belt. 
if the motor is not working even without the belt, its an electronic problem, else it's more likely mechanical.
Re: Y-Axis Not Working
Thanks! I will try that.
Re: Y-Axis Not Working
Turns out I just had a faulty y-axis motor.