Selective Laser Solidification/Sintering of polymers is an Industrial plastic 3dprinting process of turning digital designs into three-dimensional objects. It is a convenient and affordable way to make prototypes as well as finished products. Like all methods of 3D printing, an object printed with an SLS machine starts as a computer-aided design (CAD) file. CAD files are converted to STL(Standard Tessellation Language) format, then sliced depending on layer thickness suggested for each polymer material. Objects printed with SLS are made with powder materials, most commonly plastics, such as nylon etc., which are spread in a thin layer in the build platform as according to the sliced CAD model, which are then printed one-by-one to build the final part.