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

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

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

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

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

Project Management

Systems Diagram

Concept 1 – The Wedge

Concept 2 – Human Hamster Wheel

Concept 3 – The Water Treadmill?

Concept 4 – Flippy Flappers

Concept 5 – Water Stryders

Calculations All on One Foot Evenly DistributedTotal Volume

The Water Stryder was the best design choice

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

System/Subsystem Interaction

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

Failure Resulted for a Variety of Reasons.

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

Any Questions?

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),