3D Printing is a process of making three dimensional objects from a digital file by laying down successive layers of material. It can be used to create complex shapes with less waste and at a lower cost than traditional manufacturing methods. Learn 3D Printing, earn certificates with paid and free online courses from University of Illinois, Stanford, Institut Mines-Télécom, IIT Guwahati and other top universities around the world. Read reviews to decide if a class is right for you.