3D printing allows users to create three-dimensional objects by layering materials based on digital designs. This technology, known as additive manufacturing, can produce prototypes, custom parts, and even intricate designs that would be difficult or impossible to fabricate using traditional manufacturing methods. By utilizing various materials such as plastics, metals, and ceramics, 3D printing offers flexibility, customization, and efficiency. It has applications across industries, including healthcare, automotive, and education, enabling rapid prototyping and innovative product designs.