3D printing, also known as additive manufacturing, is a process for making a solid object from a three-dimensional digital model, typically by laying down many successive thin layers of a material. In recent years, developers have found ways to print composite materials, such as carbon fiber and fiberglass, which improve the durability and structure of 3D-printed products. While the process of 3D printing composite materials is not mainstream yet, many manufacturers have started to use it to print everything from car and aircraft parts to the walls of future buildings.
