1. Water Stryders ENGINEERING DESIGN 100 SECTION 205 MIKE LAMOND, BRENDAN MILLER, ZACK YEGER, EVERETT ZOFCHAK

2. Table of Contents  Project Background  Project Management and Organization  Design Procedure and Methodology  Assessment of Concepts  Technical Analysis of System and subsystems  Prototype of Final Design

3. Project Background – The Problem  Problem: Human feet lack both the buoyancy and surface area required to be able to walk on water

4. Customers Want This Product Mostly for Exercise – Some for Fishing UsePercentageResponses Fishing15%3 Exercise50%10 Fun35%7 Total100%20 Popular WantsResponses Affordable12 Lightweight15 Easy to Transport 6 Easy to Maneuver 13 Aesthetically Pleasing 10  Cost no more than 150 dollars  Weight 10 lbs or less  Fit in most mid-sized sedans  Needs something to aid in turning

5. Design Specifications  Hold 210 lbs  Sit 3 inches above water  Move at least 2 mph  Max turning radius of 1 foot  Feet at a maximum of 18 inches apart  No longer than 5 feet  Weigh no more than 10 lbs each  Cost no more than 120 to make  Able to do Yoga on  Good Cardio Low Impact exercise  Ability to mount platform

6. Project Management

7. Systems Diagram

8. Concept 1 – The Wedge

9. Concept 2 – Human Hamster Wheel

10. Concept 3 – The Water Treadmill?

11. Concept 4 – Flippy Flappers

12. Concept 5 – Water Stryders

13. Calculations All on One Foot Evenly DistributedTotal Volume

14. The Water Stryder was the best design choice

15. It Costs $61 to Build the Prototype, $111 for Finished Product. QuantityDescriptionPart #Cost 3Polystyrene 8’x4’x1” 30408950.94 1String 6’N/A5.00 1Pair of SandalsN/A5.00 Total Cost60.94 QuantityDescriptionPart #Cost 1Dow StyroFoam Buoyancy Billet 000652107.00 1Surgical TubingAQU20123.94 Total Cost110.94

16. System/Subsystem Interaction

17. Dimensions and Drawings 4’ x 16” x 8” 2” foot hole Fins are 1” deep, 8” long, and cut at 45 degrees

18. Failure Resulted for a Variety of Reasons.

19. Conclusion  Problem: Human feet lack both the buoyancy and surface area required to be able to walk on water  Water Stryder Design  Used for exercise purpose  Cost of prototype $61  Cost of finished product $111  Failures

20. Any Questions?

21. References Cho, Sung Suk. 'Method For Manufacturing High Buoyancy Life Jacket Using Low-Density Polystyrene'. 2004: n. pag. Print. Ornes, S. (2012). Walking on water. PHYSICS WORLD, 25(11), 31-32.