I have a new physical product idea, provisionally called “Borne,” that must be engineered so the final unit cost does not exceed 70 USD. I need support from concept refinement through to a production-ready design, including CAD modelling, material selection, basic cost forecasting, and a prototype that proves the target price can be met without sacrificing durability or user-friendliness. You’ll begin by translating my rough sketches and notes into clear 3D models. From there, we’ll iterate on form, ergonomics, and component choices until we have a manufacturable design with an accurate bill of materials. I’ll rely on your expertise in tooling requirements, DFM principles, and supplier liaison to keep the total landed cost within the 70-dollar ceiling. Deliverables • Initial concept visuals and CAD files (STEP or SolidWorks) • Material and component list with unit-cost estimates • Revised design files after two feedback rounds • Functional prototype and short test report • Final production package: drawings, exploded views, and manufacturing notes Acceptance criteria • Verified prototype produced at or below the 70 USD target (itemised BOM attached) • All files supplied in editable native formats plus neutral formats (STEP, PDF) • Design complies with basic safety and quality standards for its category If you have a proven track record of taking physical products from idea to factory floor while hitting aggressive cost targets, I’m ready to start right away.