Parametric Ventilated Brake Disc

Create a parametric ventilated brake disc for my MECN5004A CAD assignment. **CRITICAL: Generate a native Autodesk Inventor `.ipt` file with a complete, editable feature tree. Do not provide only STEP/STL geometry or an imported solid.** Dimensions (mm): - Outer diameter: 140 - Central opening: 80 - Friction ring thickness: 5 - Ventilation gap: 10 - Vane thickness: 3 - Number of vanes: 36 - Lug holes: 5 × Ø9 mm on a 60 mm PCD - Overall height: approximately 35 - Cooling holes at radii 48, 55 and 62 mm, each patterned 12 times - Radial slots from approximately radius 45 to 67 mm, 1.5 mm deep, patterned 6 times - 2 mm fillets and 0.5 mm chamfers where suitable - Engrave `MECN5004A` on a flat face, 5 mm text height and 0.6 mm depth Build the disc using native sketches, Revolve/Extrude, Hole/Cut, Circular Pattern, Fillet, Chamfer and text engraving features. Name features clearly and create user parameters for the main dimensions. **Feature tree requirement:** The Inventor Model Browser must show the individual sketches and modelling operations, including the main disc, hub, vanes and vane pattern, cooling holes and patterns, slots and pattern, lug holes, fillets, chamfers and engraving. Ensure the vanes connect to both disc faces, the model is a valid solid, and the complete part fits within 150 × 150 × 150 mm. Ensure the five lug holes have sufficient surrounding material; widen the hub top face if necessary while retaining the 60 mm PCD and Ø9 mm holes. Deliver the `.ipt` file first. Provide STEP and STL as optional exports. If you cannot generate a native Inventor file with an editable feature tree, state this clearly rather than substituting an imported solid.

Parameters

Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.