This tutorial includes a video on 3-D printing is an innovative manufacturing technique developed by Professors Michael Cima and Emanuel Sachs from the Massachusetts Institute of Technology. Once just used to create working prototypes, 3-D printers are now used by people from engineers to home inventors to make objects from their imaginations. "Science of Innovation" is produced in partnership with the National Science Foundation and the United States Patent and Trademark Office. There are lesson plans and other related texts.