SLS (Selective Laser Sintering) or simply LS (Laser Sintering) is a 3D printing technology that involves sintering of powdered plastic material using a laser beam. The use of polyamides (nylons) as the build material produces remarkable mechanical properties that match the building requirements of many sectors (aerospace, automotive, machine industry). SLS 3D printing is so efficient that it can produce end-use objects, also in short-run batches.