3D Designer to Modify Outer Shell of Ear Muff — IGES (.igs) Edit

We have 3 existing IGES (.igs) files of the outer shells of a noise-reducing children's ear muff and need a CAD designer to make a defined set of modifications and return clean, updated files. We don't need a full parametric rebuild — direct geometry edits are fine — but the part is surfaced/freeform, so surface-modeling experience is required. **Scope of work** 1. Import and inspect the provided .igs file; report any geometry problems. 2. Modify the designs slightly to create interesting and unique forms. 3. Confirm the edited shell is watertight and manufacturable. 4. Export updated files. **Deliverables** - Updated STEP (.step) and IGES (.igs) files - Native source file in whatever software you used - A quick note listing what was changed and any issues found **Required skills** - Surface/freeform modeling on consumer products (portfolio required) - Experience editing imported IGES/STEP geometry - DFM awareness (molded plastics a plus) **To apply, please include** - 1–2 relevant portfolio examples - Your software, estimated turnaround, and fixed-price quote - Confirmation you'll sign an NDA before receiving the file **Notes** NDA required before file transfer. Design must stay visually distinct from existing competitor products. Do not replicate any existing third-party designs. Sample of similar product: amazon.com/dp/B0DJP7C6DQ