If there are mechanical tools such as machine tools, it is best to choose materials with good rigidity, good heat dissipation, moisture resistance and convenient processing. At present, the main chassis is basically made of iron, steel, composite plastic, aluminum and other materials.
Others, if there are no conditions and ideas, some hard plastics, paper shells, wood and so on. Can also be combined into a chassis. The size of the chassis and the location of each hardware can be designed according to the size of the hardware.
The chassis is not very expensive now, so it is recommended to buy finished products. Personalized chassis has higher requirements.