I need a detailed STP model of a dental chair converted into a 3D DWG that is light enough to handle yet still looks convincing in the renders my team will be producing. The STP file is very granular, so please strip out hidden internals and excessive tessellation, aiming for a medium-detail finish: all the key shapes, chamfers, and visible hardware should remain, but the file must open and orbit smoothly in AutoCAD and similar viewers. Colour treatment is essential. I will supply JPEG reference shots and want three distinct colour groups applied exactly as shown: • Metallic parts colour • Plastic parts colour • Upholstery colour Put every upholstery element on its own layer so we can quickly change fabrics later; metal and plastic can share logical layers of your choosing. Keep the model at real-world scale, centred on the origin, and with clean layer naming. Deliverables 1. Optimised 3D DWG (AutoCAD 2018 or newer) with moderate detail. 2. Layer scheme with upholstery isolated. 3. Colours assigned to match the JPEG references. 4. A quick viewport screenshot proving the file loads and renders correctly. If you are comfortable simplifying STEP assemblies, controlling polycount, and working with colour-accurate DWG output, I’m ready to get started right away.