A decade ago, 3D printing was not as affordable or diverse for home users as today. Printers were colossal, expensive machines reserved for factories and deep-pocketed corporations but unknown outside the small circles of professionals who made and used them. But now, for as low as $200, you can get a competent and compact machine that will quickly render your ideas into a high-quality physical life. As a result, these unique devices have become affordable, practical tools for designers, engineers, hobbyists, schools, and curious customers.