A 3D printer is an innovative tool used to fabricate three-dimensional objects by depositing material layer by layer based on a computer-generated design. Commonly used materials include plastics, metals, and resins. 3D printing has applications in industries such as aerospace, healthcare, and manufacturing, enabling the creation of prototypes, customized parts, and complex structures. This technology offers advantages like rapid prototyping, enhanced design flexibility, and reduced material waste compared to traditional manufacturing methods.