A 3D printer is a device for making a three-dimensional object from a 3D model or other electronic data source through additive processes in which successive layers of material (including plastics, metals, food, cement, wood, and other materials) are laid down under computer control.
3D 打印机是一种以 3D 模型或其他数据源为基础构建出三维物体的设备，其制作过程是在电脑的控制下通过层层叠加，将材料（塑料、金属、食品、水泥、木材或其他）一层一层加上去。