He's also a garage mechanic who bought cars cheap in high school, fixing them up and selling them for profit. Recently his divergent interests came together to land him in the world of 3D printing. Wolf, 38, wanted a machine that could spit out plastic parts for a 1/10th scale model of a sports car he designed. He bought a printer just before Christmas 2011, then fought with it until New Years before scrapping the machine for parts. He was interested in a printer that could more or less print itself – churning out some of its own parts – but the one that arrived in the mail wasn't up to par.