A Mechanical Freelancing Hub

We need a complete CAD model for a foldable drone purpose-built for aerial photography. Portability is key, so the arms must tuck in smoothly without adding bulk, and the final layout should channel airflow efficiently around the frame to keep the craft stable while the camera is rolling. 

We're leaning toward lightweight plastics for the structure, but open to integrated inserts or fasteners in other materials if that helps the folding joints last longer. The design has to maintain excellent stability in hover and during gentle maneuvers, so please shape the body and prop guards with aerodynamics in mind and leave room for a gimbal-mounted camera up front.