I want to upgrade from Melzi Ardentissimo to Smoothieboard. However, on my Prusa i3 printer, I have two motors powering the Z axis, and these motors are powered from a single output on the Melzi. Can Smoothieboard handle two motors like that? Or do I need to get more expensive 5X version?
PS: I bought this printer as a kit on Aliexpress two years ago, so therefore I have no access to firmware configuration.