There are in fact a number of different subtypes of additive manufacturing including 3D printing, but also rapid prototyping and direct digital manufacturing (DDM). Recent advances in this technology have seen its use become far more widespread and it offers exciting possibilities for future development. Traditional manufacturing methods involve a material being carved or shaped into the desired product by parts of it being removed in a variety of ways. Additive manufacturing is the pole opposite; structures are made by the addition of thousands of minuscule layers which combine to create the product. The process involves the use of a computer and special CAD software which can relay messages to the printer so it “prints” in the desired shape.