Originally Posted by rustamd  However, you would be much better of with having two on your X axis(if this is the one you have two motors on) so it will square itself when it homes. |
I don't know if that statement makes sense to me because of the rigidity of the Y axis along the X rails. The Y axis is fixed & square along the X so the motors would have little or no effect on how square it is unless one motor pushes further than the other in which case one motor will give out before it twists the Y off square. I could be wrong but these are 495oz motors and I don't know how that translates into pounds of pressure.
(Let's call the two X axis motors 1 and 2)
When having both X axis motors, one master(1) and one slave(2), I would assume that the master would control the slave (in Mach3) so one could not work independently of the other - which would prevent any twisting or racking.
On the X, What if motor(1) fails or the wiring fails, will the other motor(2) fight until it fails or burns-up? Or will Mach know that motor(1) is not working and shut motor(2) down or stop the system? It's an extreme scenario but it could happen.
Hope I didn't stray off topic too much.