Quote Originally Posted by motoxy View Post
OO look at me showing off and giving advice
Good advice :)

It's possible to put two motors on one driver if they're mechanically linked, but I wouldn't advise it. Either put one motor on each screw, or one motor and a long timing belts to link the two screws. The former should go a bit faster, since you have twice the input power with two motors, but in practice I doubt it will go that much faster as you have to guarantee neither motor stalls. Clearly if one does then the gantry skews, which depending on the magnitude could damage things. Once the machine is tuned properly either is fine as the motors will never stall.

I used two motors and two drivers since it would require a very long belt and several idlers to link the rotating ball-nuts.