1. RPI Sunglasses Albert Lo -Troy High School Christopher Quinones -Troy High School

2. Our Design

3. A Bright Idea Supports RPI Tasteful fashion accessory Helps shield eyes while still a fun item Involves a variety of processes

4. Parts Frames (front and back) Sides (x2) Lenses (x2) Screws, nuts, and washers (x2)

5. Frames Polycarbonate injection molding

6. The two halves are ultra-sonic welded together to enclose and secure the lens.

7. Sides ABS injection molding CNC machining Laser etching

9. Lenses Purchased “Solar” gray color sheet Laser cut Acrylic Lenses

10. Screws, Nuts, and Washers Purchased Fastens the assembly together

11. Assembly Attaching the front frame and side frames

12. Fastening the Assembly Height of screw: 5mm Height of side frame: 3.25mm Height of hex nut: 1.6 0.15mm extra

14. Processes Involved Plastic injection molding Frames and sides CNC machining Bore holes in the frames and sides Ultra sonic welding Connects the two frames together Laser Cutting Engrave details Cut lenses

15. Materials Cost ItemUnit priceTotal Unit CostSource Screw$.03$25.00Boltdepot.com Nut$.02$14.00Boltdepot.com Washer$.01$9.00Boltdepot.com Lens plastic$.05/in 2 $135.00Tapplastics.com TOTAL---------------$183.00------------------------ With an approximation of $200 to produce 400 pairs of glasses, this design is well under the $3000 budget It costs $0.50 to manufacture one pair of sunglasses For plastic sheets: http://www.tapplastics.com/product/plastics/cut_to_size_plastic/acrylic_sheets_transparent_colors/519 For screws, washers, and nuts: http://www.boltdepot.com/Product-Details.aspx?product=6844

16. Questions?