Quote Originally Posted by jaguarking11 View Post
5v Rail is nearly useless on reprap based printers. Some run as high as 24v, 5v rail is unused in most DIY ramps based printers.
Why?

I use only 5 volt on my CNC machine because PS3 supplies are so cheap and small. I don;t see why you couldn't run repraps on 5 volt, my steppers are all at least nema 24, and I thought repraps used nema 17 generally but like I say, I've never really looked at them.