I am considering Smoothie for a heavy CNC that will be driven by nema 34. I see that smoothie has driver pins that are 3.3V. Would a 3.3V to 5V converter enable the smoothie to interface an external driver for large motors ? How would the wiring be to a DM860A ?
I heard that there is a board getting done that doesn’t have drivers, will it work on 5V ?
A tutorial or detailed explainations would be great as I’m sure I’m not the only one considering it.
Thanks
I don’t think that you need a level converter (3.3v to 5v)
those kind of drivers have optocuplers on input and more than that I have seen many people connecting directly parallel port to such kind of dirvers.
And parallel port on recent computer output also 3.3v
I’m working on adding tutorials, the one on 3D printers should help you quite a bit ( but it does not include external drivers information just yet ) : http://smoothieware.org/3d-printer-guide
I’m fairly certain you can control those drivers using 3.3V, even though it recommends 5V. I recommend you try it, and if it doesn’t work, you can come back here and I’ll give you detailled instructions as to how to wire adapters.