This document discusses 3D printing and its applications. It covers personal fabrication and customization as well as industrial innovations. Both opportunities and challenges are presented, including the ability to customize products, lack of raw materials, and costly machines. A range of customer segments and industries that could benefit are also outlined, such as students, prosthetics, and large industries through benefits like fast build times and efficient material usage. The future of 3D printing is presented as promising with this just being the beginning.