Finalize Consumer Product CAD

I already have a partially built 3-D model for a consumer product, but it needs a seasoned mechanical mind to bring it all the way to production-ready status. The core shape is in place; what’s missing are the fine details that let a factory hit the Go button with confidence... (Budget: $15 - $25 CAD, Jobs: 3D CAD, 3D Modelling, 3D Printing, 3D Rendering, CAD/CAM, Fusion 360, Mechanical Engineering, Product Design, Solidworks)