In fact, 3D printing technology is a rapid prototyping technology by means of light curing and paper stacking. The application of this technology in daily life is the 3D printer. The 3D printer is equipped with bondable materials such as powder metal or plastic. The three-dimensional program is designed by computer software, and then the blueprints on the computer are turned into real objects by using multi-layer printing method one layer after another.
The printing process of each layer of 3D printing technology is divided into two steps. First, a layer of special glue which is not easy to diffuse is sprayed in the area to be formed, and then a layer of uniform powder is sprayed. When the powder meets the glue, it will quickly solidify and bond, while the area without glue remains loose. This method combines layered processing with superposition forming, and achieves the same effect as other 3D model manufacturing technologies such as laser forming. After printing 3D real objects, the model can be made by simply sweeping away loose powder.