The technology used for 3D printing primarily involves additive manufacturing techniques, where material is deposited layer by layer to create three-dimensional objects. Common technologies include Fused Deposition Modeling (FDM) and Stereolithography (SLA), which utilize different materials like thermoplastics or resin. These technologies allow for rapid prototyping, customization, and production of complex designs that traditional manufacturing methods might find challenging. 3D printing is widely used in various industries, including healthcare, automotive, and aerospace.