A 3D printer is a digital manufacturing device that creates three dimensional objects by depositing or curing material layer by layer based on a digital design. Depending on the technology, 3D printers can process materials such as PLA, ABS, PETG, resin, nylon, and other specialized materials. They are widely used for prototyping, product development, education, engineering, automotive, healthcare, and small batch production. With precise printing capabilities and flexible material options, 3D printers help users create customized parts and functional models efficiently.