What is 3D Printing?
Copyright 2013 by Wohlers Associates, Inc.

3D printing is the fabrication of objects through the deposition of a material using a print head, nozzle, or another printer technology. The term is often used synonymously with additive manufacturing. 3D printers are manufactured and sold by companies such as Stratasys and 3D Systems.

  
Alaris30 3D printer, courtesy of Stratasys Ltd.