CRITICAL ANALYSIS OF COLLABORATIVE ROBOT USED FOR RAPID PROTOTYPING. The objective of this thesis is to propose a feasible open source solution of creating a 3D printer and install it on a cobot for rapid prototyping. The proposed system offers greater flexibility and can operate within complex and changeable environments compared to traditional 3D printers. The system uses the design models imported from RoboDK, a robot simulation and programming software that replicates the real operational environment and converts the virtual simulation into reality.