3D Printing--From the Simple to the Complex.

The article emphasizes the evolution of stereolithography printing process developed by three-dimensional (3D) printing company 3-D Systems in 1998. Topics discussed include the 3D printing jobs offered by 3D printing service company Shapeways, the use of 3D printing software which can be downloaded from sites such as www.3dprinter.net/directory/free-3d-models, and conglomerate corporation General Electric's use of the 3D process called Additive Manufacturing.