Most 3D printers on the market produce items that, while cool looking, aren’t exactly made to withstand a lifetime of wear and tear. The Mark One 3D Printer is looking to change that as the world’s first 3D printer designed to print composite materials. Now if you were going to print a replacement part for something you broke, you won’t have to worry about it breaking again in a day. This includes creating carbon fiber, fiberglass, and nylon items. We would just have to restrain ourselves from creating carbon fiber everything in our lives.