The work describes the application of hot gas powder sintering using robotic positioning system with special equipment, designed for this new way of manufacturing technology. Material used for this type of sintering is recycled dust portion of PET plastics, which proposes potential possibility of costs reduction for this kind of production technology, which is focused on the use unusable materials. This opens new potential trends in robotics application, even in a new technology, suitable for rapid prototyping in mechanical engineering. It is sintering of the plastics powder using hot gas, usually nitrogen or any inert gas, to propose the best material structure without any deformation.