Laser Sintering also known as Selective Laser Sintering (SLS) builds complex parts directly from 3D CAD data via a heat laser that fuses or sinters powdered thermoplastics. Similar to other 3D printing technologies, it enables part consolidation and complex geometries, however, SLS is unique in that it eliminates the need for support structures. Parts built with SLS are printed in a bed of self-supporting powder; the excess powder is easily shaken out during post-processing.