Quote Originally Posted by DBFIU View Post
Would just a stepper motor Y cable work if it comes off the ramps? from the 4 pins Y axis output?
That depends on your motors and the currents / voltages of your drivers. It is never a good idea to use steppers like that as they have no feedback so if one motor misses a step they will forever be wrong until you intervene and align them again. The same is true for double drivers though.

The only way to align them is to have one end where you know they will both stall in the same position and drive against it with more pulses than are needed. Once that is done then when reversed they will be aligned correctly.

Not worth the hastle really, get a bigger stepper and a long rod.