SLS printers, or Selective Laser Sintering printers, are a type of 3D printing technology that uses a laser to fuse powdered materials, typically plastics or metals, into solid objects. The process involves spreading a thin layer of powder on a build platform, then using a laser to selectively melt the powder in specific areas according to a digital design. This layer-by-layer approach allows for the creation of complex geometries and intricate designs. One of the key advantages of SLS printing is its ability to produce durable and functional parts without the need for support structures, as the surrounding powder supports the object during printing. This makes SLS printers popular in industries such as aerospace, automotive, and medical, where precision and material strength are essential.