Researchers at MIT have developed a technique for 3D printing with cellulose acetate, a cellulose material with a reduced number of hydrogen bonds. Unlike other forms of cellulose, cellulose acetate can be dissolved in acetone and extruded through the nozzle of a 3D printer. Cellulose, the main component of paper, is the most abundant organic polymer in the world. It is renewable and biodegradable, easily sourced, and extremely cheap. In our circles, these factors lead to one inevitable question: why aren’t more people trying to 3D print with it?