Selective Laser Sintering (SLS) is a 3D printing technique for rapid prototyping
. In selective laser sintering, which is based on the sintering of printing powder, the printing powder is applied layer by layer in thin layers and fused together in a sintering process. In selective laser sintering, the melting temperature is generated by a powerful carbon dioxide laser. Polyamide, ceramic or metal powder is used as the printing powder. The layer thickness is between 1 µm 0.2 mm, the layers are sintered or melted down. The resolution
is very high and is between 1 µm and 200 µm.