Currently my X axis worked when I got it now it does not make a noise or move in manual mode on Repetier Host. I have checked the wiring, and tried a different computer. Any tips or help? Thank you. Edit: It turns out that the Pololu board is not working, I tried the E1 Pololu board and it worked and controlled my X axis perfectly! Where could I get a replacement? Image of what is not working (not actual image from me): Thank you!