I have an existing STL of a medallion that features an animal in relief with a raised perimeter ring. I need the back-plate disk that sits in the middle area—between the animal and that perimeter ring—completely removed. The goal is to leave the animal figure floating cleanly inside the ring while everything else in the file stays exactly as it is. The job is strictly a geometry subtraction; no other sculpting or reshaping is required. As long as the result looks visually correct and the mesh remains watertight, I’m happy. Feel free to use whatever tool you prefer—Meshmixer, Blender, ZBrush, Fusion 360, or similar—as long as the final delivery is an error-free STL ready for 3-D printing. Deliverables • Modified, manifold STL with the specified back-plate disk removed • Screenshot or quick render confirming the change before hand-off Acceptance criteria • Middle area back-plate disk fully removed, no remnants or stray verts • Animal relief and outer ring untouched -backplate flange outside the raised ring is to kept • File passes basic mesh checks (no non-manifold edges, flipped normals, or holes)