I already have a finished object-type 3D model and only need some light surgery to its functional components. The overall silhouette and proportions are final; what I’m missing are a few practical add-ons that make the piece work in the real world. Here’s what you’ll do: • Open the supplied source file (OBJ, FBX or STEP—your choice). • Add or remove specific functional elements I will outline in a marked-up reference PDF. • Keep topology clean, non-destructive, and watertight so I can move straight into printing or simulation. Once done, send back the updated model in the same format plus an STL for quick review. If you use Blender, Fusion 360, or SolidWorks that’s a bonus, but any package that exports clean geometry is fine. I just need an accurate, production-ready file—not a full redesign—so this should be a fast turnaround for anyone comfortable with precision edits.