I need a parametric 3D model of a computer fan rotor designed in Autodesk Fusion 360, fully controlled through the Change Parameters system so that every geometric aspect updates automatically when a parameter is modified. The fan must have a 10 mm hub diameter and a 105 mm total rotor diameter, resulting in a 47.5 mm blade length from the hub outer radius to the rotor tip. The model must allow automatic adjustment of all blade geometry, including the number of blades, blade length, root and tip chord values, twist angle distribution from root to tip, pitch/angle of attack, sweep and skew if needed, blade thickness at root and tip, fillets between hub and blades, leading-edge radius, trailing-edge thickness, and any other parameters necessary to create valid aerodynamic geometry for CFD simulation. Changing parameters such as blade count or pitch must regenerate the entire model without errors. The design must be watertight, solid, and suitable for CFD meshing, with smooth transitions and no geometry issues after regeneration. The file must be modeled with a proper reference axis for rotation, and organized so that modifying a parameter automatically updates the blade array and blade shape. Deliverables must include the native Fusion 360 parametric file with all Change Parameters clearly labeled, a STEP file, and an STL file prepared for CFD export. A brief note explaining which parameters control each feature is required, along with three tested parameter configurations (for example, different blade counts or pitch angles) proving that the model rebuilds correctly. The final result must be a professional-quality, algorithm-driven Fusion 360 parametric model suitable for computational fluid dynamics studies, allowing me to change blade count, twist angles, pitch, hub size, diameters, and blade thickness only by editing parameters, without manual remodeling.