PROJECT ONE: TOOTH BRUSH REDESIGN Team ThunderCats Kevin West Thomas Dinh Tyler Anderson Evan Armstrong 26 February 2012 Initial Problem Statement: To design a toothbrush that will meet the sustainability needs of rapidly energy consuming population while remaining effective in quality, cost, and maintenance.

Sequence of Project Initial Assessment Customer Needs Gathering Customer Needs Assessment (Hierarchal Needs List, AHP) External Search/Product Analysis Literary Review, Patent Search, Benchmarking Product Dissection Concept Generation Individual Design Creation Product Design Finalized (Morph and Pugh Chart) Project Finalized CAD Drawing Progress Report

Project Management Kevin Needs Assessment Patent Search Presentation Evan Literary Review Pictures Thomas Needs Assessment Patent Search Progress Report CAD Drawing Tyler Dissection CAD Drawing Benchmarking Communal Brainstorming Concept Generation Product Finalisation

Hierarchal Needs Chart 1.Durability 1.Rechargeable 2.Sustainable 3.Battery Life 1.Effectiveness 1.Bristle Rotation 2.Easy to Use 3.Price 1.Design 1.Bristle Design 2.Color Scheme 3.Portability 1.Noise 1.Speed DurableEffectiveNoiseSpeedDesignTotalWeight DurableX Effective1/3X Noise1/81/6X21/ Speed1/91/71/2X1/ Design1/51/335X Revised Problem Statement: To redesign a current existing toothbrush to meet the desired durability, sustainability, efficiency, design, and cost expectations of consumers.

External Search Benchmark

External Search Literary Review Affordable Well-planned High Availability Liked by consumers Design Effectiveness Popular and Successful

External Search Patent FunctionPowerEfficiencyBatteryDurabilityReplacement Switch Crossing Bristles B1 Tongue Cleaner D S Clip-Off D S

Concept Generation Body Designs Flat BottomGreen Material ConicalRubber Casing

Concept Generation Brushhead Design High Bristle Density Long Bristles Rubber Bristles

Concept Generation Energy Mechanism Corkscrew Motor Double Helix Motor

Concept Generation Power Generation Shakeable Battery Battery in Pack/2 nd Pack Battery Series

Morphological Chart Human Body DesignsEnergy MechanismPower GenerationDesign Head Flat Bottom Corkscrew MotorShakeable BatteryHigh Density Bristles Conical bottom Double Helix Secondary Battery Pack Long Bristles Green Material Series Circuit Rubber Bristles Durable/Rubber casing

Concept Selection Criteria In Deciding Finalized Concepts Environmental Effective Durable Well-designed

Concept Selection

Final Selected Components High Density Bristles Environmentally Safe Material Flat back and bottom Shake-Recharge Battery Double-helix style rotor LED Battery indicator On/Off Sub-surface Button

Concept Design

Function and Technology Toothbrush works in traditional circuit Motor Double Helix Groove Moves rod connected to bottom brush up and down Rotates rod as well to top brush to spin Battery Mechanical-Power (Faraday Flashlight or linear induction) Energy can be provided using coil-magnet system Still recharged by traditional outlet cord