SLS technology (Selective Laser Sintering) is the method enabling the creation of models from polyamide 12 based materials. SLS technology has been developed and improved for almost 30 years, making it the most frequently applied 3 D printing method for short-series production, as an alternative for injection moulding. This technology records a steady market growth where there is a need for the manufacturing of objects with advanced geometry in low and medium manufacturing series.