1. Kelsi McKinley Lester, Leah Frederick, Steve Schweigert, Eric Sternberg 27 February 2012

2.  Analyze Customer Needs  Revise Design Statement  External Research  Internal Research (Lab Dissection)  Concept Generation  Concept Selection  Design Realization

3.  Divide and Conquer!  Realization of individual strengths  Technology  Email  Surveymonkey.com  ANGEL team space  Communication is key

4. 1.0 Portability (.07) 1.1 Size: Small (.25) 1.2 Weight: Light (.43) 1.3 Storage Options: Comes with cover/case (.25) 1.4 Travel-Friendly: Foldable (.06) 2.0 Performance (.67) 2.1 Battery Run Time: Long Battery Life (1.0) F.1 Cleanliness of teeth: Works well 3.0 User-Friendliness (.26) 3.1 Comfort: Gentle on Gums/Mouth (.44) 3.2 Electronic Maintenance: Easy to replace battery or charge (.13) 3.3 Physical Maintenance: Easy to replace bristles (.13) 3.4 Ergonomics: Comfortable Handle (.19) 3.5 Noise Level: Quiet (.10) C.1 Low Cost

5. Our design problem is to design an inexpensive electric toothbrush that, above all else, functions well. Considering customer needs, we have determined that the design must have a long battery life and must be fairly user-friendly. Our team has decided to focus on minimizing the quantity of materials used in the toothbrush body and power usage.

6. Part Brush HeadOverall ToothbrushBattery Powered Toothbrush Rotating Bristles Clean the teethUS D/268,028 Competitive Patent US 6,178,579 B1 General Patent US 20060112505A1 Evenly Cleans teeth US 20026735804 Patent Search Benchmarking FeatureOral-BCrest SpinbrushColgateReach Packaging3532 Aesthetics4234 Ease to clean4334 Convenience of on/off switch 4445 Travel Size3432 Effectiveness4345 Price4543

8. Energy MechanismBrush Head Design Human Factors/Body Design Power Generation Shorter rod for oscillation which leads to faster toothbrush speed because short period of revolution. Bristle pointing in three directions to increase brushing ability Package in eco- friendly materials such as recycled cardboard Attach a cord to the toothbrush body so the toothbrush no longer requires a battery Oscillation moves two independent brush head pieces for greater cleaning power. Bristles change color with wear so the user knows exactly when the bristles need to be replaced Build body from eco- friendly materials such as hemp/wood composite Incorporate an on/off switch into charger so that energy is not wasted when the device is not in use Free-moving brush heads that are only held in place by one pivot point so the user can still clean their teeth without turning on the toothbrush Removable Bristle pads that can be locked into place through a twisting motion Smallest possible toothbrush diameter (size of battery) Charge with a kinetic energy system similar to a shakable flashlight A sliding power intensity button on the toothbrush’s side to allow consumers to choose their level of cleaning Vibrating tongue cleaner on the toothbrush’s reverse side Hollow toothbrush Hollow charger to reduce material usage Larger battery to reduce the charging frequency Two brush heads that rotate in opposite directions Finger grips molded into the body Retractable charge cord in base

9. Brush Head Pugh Chart Body Design Pugh Chart Function: Body Design and Human Factors Customer Needs SizeWeightErgonomicsSumRank Weighting0.020.030.05 Concept 1: Smaller Toothbrush Diameter 1.00 -0.00183 Concept 2: Cut- Outs to Conserve Materials 0.00 2 Concept 3: Finger Grips 1.001.000.03681 Function: Brushhead Customer NeedsSizeComfort Physical Maintainance SumRank Weighting0.020.110.07 Concept 1: Bristles pointing in 3 different directions 2.00 0.143 7 2 Concept 2: Replaceable/Removable Bristle Pads 2.002.000.063 Concept 3: Bristles that change color with wear 0.00 4 Concept 4: Two bristle pads that rotate in opposite directions 1.00 0.201 Concept 5: Vibrating tongue cleaner on opposite side -2.00 -0.3995

10. Energy Mechanism Pugh Chart Power Generation Pugh Chart Function: Energy Mechanism Customer NeedsPerformance Noise Level SumRank Weighting0.670.03 Concept 1: Shorter Oscillation Rod -0.6963 Concept 2: Two moving bristle sets 0.00 2 Concept 3: Brushead Pivots 0.001.000.0261 Function: Power Customer Needs Battery Run Time Electronic Maintainance SumRank Weighting0.670.03 Concept 1: Shake0.001.000.031 Concept 2: Direct Cord 0.00 2 Concept 3: Switch on Charging Station 0.00-0.673