I wanted to know if anyone has had success - perhaps on other CNC machines - connecting two stepper motors to one driver output (such as the two on the y rails). I am interested in the possibility of freeing up a controller driver for a future 4th ‘C’ axis use. Are there any negative impacts of this?
I reached out to BuildBotics, and part of the response is as follows:
“… you may be able to wire the two motors onto a single port thereby freeing up the fourth port for your tangential knife. Oftentimes (but not always) wiring two motors to the same port results in resonance problems between the two motors resulting in motor stalls. Unfortunately, you won’t know whether this is a problem until you try it.”
I appreciate any insights those with experience may have.