Mixing raw materials is not ideal for mass-production methods because it can be costly. In addition, the physical and chemical properties are difficult to combine in the traditional methods. However, 3D printing continues to progress in this area. In fact, from using plastics, 3D printing is now compatible with a variety of material including metals, glass, ceramics, gold, silver, paper, biomaterials and even food. With various materials at hand, you can achieve anything you have in mind with 3D printing.