yes, we love smoothieware! it's existence is one of the main reasons we're able to offer this tech at such an unheard-of low price. we've forked it (available here: https://github.com/Opentrons/SmoothiewareOT) to work with our OT-2 motor controller, which has more stepper drivers than the smoothieboard and is designed to fit on the head of the robot to minimize cabling. full board design (as well as all of our electronics designs) are going up on github in the next few weeks!