Selective Laser Sintering (SLS) is a 3D printing technology that uses a laser to fuse powdered materials, typically plastics or metals, into solid objects. The process begins with a thin layer of powder spread across a build platform. A laser then selectively melts the powder in specific areas, creating a solid layer. This process is repeated layer by layer until the final object is complete. SLS is known for its ability to create complex geometries and functional parts without the need for support structures. It is widely used in industries such as aerospace, automotive, and medical for prototyping and producing end-use parts.