This question will more than likely only reveal more that I don't know what I'm getting into. I'm getting the 276oz motors off automation direct, and a powersuplly that will do 40v at 8 amps. Way more power than my driver board (xylotex) will be able to handle. But I want to get the setup so that I can make my own driver board, like the one on Pmino's site. What is it that limits the boards like the HobbyCNC and Xylotex boards to just safely running 24v for the motors? I notice that the boards you build yourself can handle more than the standard 3 amps also. I'm probably asking too much with this questions. But can you simply modify Pmino's board to run safer at higher voltages? What's the limiting factor? Thanks in advance!