3D Brass Mold CAD Model For Handbag

I will supply detailed sketches and supporting reference images of our product and need them translated into a production-ready 3D model for a brass casting mold. The file must respect all common manufacturability rules for brass—proper draft angles, clear parting lines, wall-thickness guidelines, and an allowance for shrinkage—so the foundry can move straight to CNC machining and fabrication without re-work.

I only expect one or two revision rounds, so the initial build should already reflect best practices in mold design. If dimensional clarification becomes critical, add a concise 2D drawing set; otherwise the 3D data should stand on its own.

Deliverables
• Parametric 3D model in STEP, IGES, and STL
• Optional 2D technical drawing pack (PDF/DWG) if specific measurements require call-outs
• Clean, high-quality render suitable for a brief presentation

Please embed sensible naming conventions, verify tolerances are manufacturable for brass, and make sure the file hierarchy stays organized so toolpaths can be generated immediately.