The rise of consumer-level 3D printing brings many opportunities and some challenges. 3D printing can produce functional parts, but limitations of the technology mean that designers must account for these constraints early in the design process. In this class we will spend some time understanding exactly how these printers work, with a particular emphasis on how a 3D design is translated into actual toolpaths. Based on this, we will be able to understand how to manage particular issues that affect printability and strength of parts, such as overhangs, wall thickness, filament orientation, and so on. Designers will be able to successfully create parts that are both functional and good-looking. The class will include an overview of relevant software tools from Autodesk, Inc., and other companies. In addition to these topics, the 2014 session will address developments in consumer 3D printing, including new printing technologies, soluble support materials, and articulated joints.