1. Electric Toothbrush Re- design February 22, 2013 Mike DeLancey Molly Streiff Emily Evanchak Kenan Sindi

2. Outline Customer Needs External Search Concept Generation Concept Selection Final Design

3. Project Management

4. Hierarchal Customer Needs List From our initial problem statement, the team had the goal of making the toothbrush as reusable as possible. After taking the surveys of toothbrush users, however, we found that the most important thing they are looking for is cost and then aesthetic appeal. The new goal of the design is to make the electric toothbrush as cost friendly to the consumer as possible. The reusability was also found to be important in a consumer’s decision to purchase a toothbrush. Revised Problem Statement

5. External Search Activities Patent Search Product Archaeology Benchmarking FeaturesOral-B AdvancePower 400 Arm & Hammer Spinbrush Pro Clean Philips Sonicare Xtreme E3000 Oral-B 3D White Action Brushpoint Vital Health Sonic Power Cost$12.99$17.75$29.97$16.97$11.99 AppealingErgonomically designed with a non-slip grip Comes in blue & red Contoured ergonomic shape Blue thin design Metallic blue slim handle design Reusability Replaceable tops – 2 AA batteries Replaceable tops – rechargeable batteries Replaceable tops – 2 AA batteries Replaceable tops – rechargeable batteries Replaceable tops – 1 AA battery Size (L x W x H) (7 x 4 x 2in)(3.25 x 4.5 x 11.0in) (10.2 x 1.0 x 1.25in) (8.858 x 2.244 x 3.11in) (9.45 x 4.33 x 2.28in) Special Features 1- indicator bristles 2- interdental tip bristles 1- Duel brushing 2- Micro- cleaning bristles 3- compact charging base 1- 2-mins timer 2- adjustable head 3- safe to use with braces/brackets 4- patented sonic technology 1- rubberized bristles 2- action cup brush head 3- dual brushing 1- floss heads 2- sulcus tips 3- gum stimulator 4- sonic power cleaning

6. Brush Head Ninja Turtle Head. Kid Friendly/Turtle Lovers/Karate Specialists. Dual cleaning technology Rotates one direction on the outside and the opposite on the inside. Standard rotating head with tongue cleaners Top section spins and bottom section shakes

7. Body Design Square base, can stand upright Has pointed end and slimmer body Grip wrapped around toothbrush with side of brush ribbed to perfectly fit hand Tongue cleaner, grip wrapped around sides and back, body same width as neck Bubbled body with grip wrapped around body with tiny circles on it as extra grip

8. Power Generation Chargeable base that plugs into wall with cord and store toothbrush. Chargeable base that plugs into wall

9. Energy Mechanism for Brush Head Rotating Gears Spring loaded lever that flips down, rotating mechanism pushes lever up. Creates a back and forth rotating motion

10. Morphological Chart

12. Criteria for Concept Selection Comparison Criteria Evaluated AppealingSize Special Features ReusabilityCostTotalWeight Appealing 1.007.005.003.000.2016.200.27 Size 0.141.000.20 0.111.650.03 Special Features 0.205.001.000.330.146.680.12 Reusability 0.335.003.001.000.209.530.16 Cost 5.009.007.005.001.0027.000.42 Table 4. AHP Table

13. Pugh Charts: Brush Head Design AppealingSizeSpecial features Reusabil ity CostSumRank Relative Weight0.270.030.120.160.42 Concepts: Ninja Turtle+1+100.066 Dual Cleaner+1 0 0.841 Double Rotator+1 0+10.722 Standard w/ Tongue Cleaner +1 00.424 Double Head-----05 Giraffe Head+1 0+10.543

14. AppealingSizeSpecial features ReusabilityCostSumRank Relative Weight 0.270.030.120.160.42 Concepts: Spring Loaded -----02 Gears+1+1 0.941 Pugh Charts: Energy Mechanism for Brush Head

15. AppealingSizeSpecial featuresReusabilityCostSumRank Relative Weight0.270.030.120.160.42 Concepts: Pointed End+1 11 Grip Hand Fit+1 -0.166 Bubble Body+1+1 0.14 Square Base-----05 Standard w/ Tongue Cleaner +1+1 0.222 Giraffe Body+1 0.163 Pugh Charts: Body Design

16. AppealingSizeSpecial features ReusabilityCostSumRank Relative Weight0.270.030.120.160.42 Concepts: Plug in Charger+1 +10.683 Chargeable Base+1+1 0.941 Bottom Button Cap +1-0.166 Two AA Batteries -----05 Single AA Battery +1 +10.444 Two AAA Batteries +1 +1 0.762 Pugh Charts: Power Generation

17. Sketch and Details of Final Design

18. CAD drawings of final design

19. How does it work? Chargeable Station Electrical Energy is transformed into Chemical and then Mechanical Energy Gears turn the brush head

20. Concluding remarks Each part of our re-design was specifically selected based on.. Cost Aesthetics Reusability size special features KEY DISCOVERY: Perfection is possible.