Over the last few decades, 3D printing—also known as additive manufacturing or rapid prototyping—has evolved from a niche technology used by large industrial manufacturers to what many proponents now describe as a legitimate and disruptive force that will be “bigger than the Internet.” In this class we will explore the nearly infinite world of 3D printing. Prior to the start of immersion, each teaching assistant will learn how to build a 3D printer from the ground up. During immersion, teaching assistants will be responsible for leading a team of 2-3 other students in the building process. Once the printers are built, we will concentrate on using modeling software and maintaining our printers. Each student will have the opportunity to design an object for their own use—it might be practical or whimsical or even unimaginable at this point.