Abstract
الوصف In this research study, a Reverse Engineering technique was selected to design and manufacture a mechanical water pumping Windmill Rotor based on a commercial Windmill Rotor of 4.88 m (16ft) in diameter and a tower height of 12m. The Reverse Engineering technique was accomplished in three consecutive steps: digitizing the component, processing the measured data, and creating the CAD model. By using the Deviation Analysis in the CATIA V5, all the Rotor's 3D models were affirmed by comparing them with the original scanned data. Based on these affirmed models, a final 3D assembly model was created to verify the feasibility of all Rotor components' assembly and the final approval of the design. The 3D models were the basis for manufacturing the Windmill Rotor prototype installed at a pilot site in a suburb of Tajoura. The CATIA V5 was used as an integrated system between Reverse Engineering