It's the dream of many to build their own home, but financial, temporal and technical limitations mean that few of us ever do. At least, that's the situation right now. An inventor from Minnesota is currently trying to build an enormous 3D printer that'd do for housebuilding what the technology has already done for small colored plastic widgets. Andrey Rudenko is currently working on hardware that'll help him build his next home, but that could also be sold to contractors for "the cost of a car." Admittedly, we don't know what sort of whip is in Rudenko's driveway, but presumably that's a small price to pay for the control on offer.