The material commonly used for the casing of plastic 3D printers is engineering plastic, such as ABS (Acrylonitrile Butadiene Styrene) or PC (Polycarbonate). These materials possess good heat resistance, chemical resistance, and mechanical properties, making them suitable for manufacturing casings and other components that require strength and durability.

These casings are used to protect the internal mechanical and electronic components of 3D printers while providing aesthetic appeal and structural stability. Their design considerations often include good heat dissipation, ease of maintenance and assembly, as well as protection against dust and other environmental factors.