I am developing a new spectacle frame and need a product designer who can balance engineering accuracy with eye-catching style. Both the mechanical function and the overall look carry equal weight for this project, so I’m counting on you to finesse every detail—from hinge geometry to surface curves—until the piece is production-ready and commercially appealing. READ BELOW- DESIGN WILL BE OF 2 PARTS - 1 FRAME - THIS ALLOWS LENS TO BE LOCKED INTO IT WITH HANDS 2- LENS FRAME - USED TO FIX LENS IN IT AND THEN IT GOES INTO THE FRAME TO BE LOCKED. THERE NEEDS TO BE A SEMI PERMANENT LOCKING MECHANISM. Key design parameters • Material: the frame will be injection-moulded in PC or TR90. Every feature must respect the flow, draft and wall-thickness constraints typical of these plastics. • Primary objective: robust mechanical performance. The temple mechanism, lens retention groove and nose-bridge stress points must all be proven durable while keeping the frame lightweight and comfortable. Deliverables • Full 3D CAD model (SolidWorks, Inventor or comparable) ready for tool-maker hand-off • 2D manufacturing drawings with tolerances, draft angles and material call-outs • Exploded views or animation highlighting hinge action and lens insertion • Renderings that clearly communicate colour, finish and brand language Acceptance criteria 1. All contact points survive a virtual drop test and meet standard eyewear flex tolerances. 2. Draft analysis shows zero under-cuts or gating conflicts for single-shot moulding in PC/TR90. 3. Aesthetic proposal matches contemporary lifestyle eyewear trends while keeping SKU cost competitive. If you have a track record in eyewear, consumer electronics casings or similar injection-moulded products, I’d love to see examples and discuss how you would approach this frame in detail.