Originally designed for 3D printing, this blade hub has exceeded expectations through the exceptional precision of CNC machining services offered by PCBWay. Fabricated in aluminum, the results showcase remarkable accuracy, including intricate details such as the embedding of small nuts into expertly machined cavities. While threading directly into the aluminum was possible, the design retained features suited for plastic, and PCBWay executed the adaptations flawlessly. The blade hub is perfectly centered, symmetrical, and adheres to the highest manufacturing standards. This component not only enhances the functionality and performance of the miniature wind turbine but also demonstrates unparalleled craftsmanship. A key piece for both DIY renewable energy projects and advanced engineering applications!