Raj Hirpara Robert Schuld Aakash Soni Bartlett High School 1

Table of Contents  Problem Statement  Project Outline  Hypothesis  Justification  Background or History  Design solution  Test procedure  Test data charts  Conclusion page  Acknowledgments 2

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Problem Statement People get distracted by the sunlight when driving in a car. 4

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Hypothesis Components The visor will…  block 70% of light and cover 180 degrees  clip to the factory installed visor  fold into the factory visor for easy storage  fit in front of the field of vision to shade glare and sunlight.

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Justification 8 1. At what times do you usually operate an automobile? 2. Do you become distracted by sunlight while driving? 3. If yes, does it impair your driving abilities? 4. Do you use sunglasses at any point while driving? 5. If yes, have you ever forgotten to wear your sunglasses when you needed them? 6. Do you find sunglasses inconvenient to wear while driving? 7. If yes, why are they inconvenient to wear? 8. What do you prefer using in the car to help your vision when driving in the sun? 9. Where does the sun mostly affect your vision when driving?

Survey Results 9 Justification Survey of Sun Vs. Driving QuestionGroup 1Group 2Group 3Group Years "56-60"61-70"71" YesNo 3743 MorningMiddleEvenNight YesNo ForgetUncomfortableDon’t like looking Other SunglassVisorOtherNone On topCenterSideNone

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Background or History 11

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Design solution 13

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Parts List 15 Part Major Tools Needed MaterialsTime to Build 15”x6”x1/8” shaded sheet Plexiglas Band saw, drill, sander Plexiglas, band saw, ¼” drill bit 20 min. 5150XC 1 1/2X7/8 BR Butt Hinge DrillPurchasedN/A Philips flat head X 1 screw DrillPurchasedN/A 15”x6”x ¼” Plexiglas sheet Band saw, sander Plexiglas, band saw, sander 25 min. Metal Spring clipDrillPurchasedN/A

Bill of Material 16 Part NameQuantityDescription Purchase Location Cost Acrylic Sheet1 Optix 18 x 24 x.093 Home Depot$6.97 Atwood Button Hinge 1 2 in. x 2 in. Zamac Hinge Home Depot$2.78 Metric Nut2 Crown Bolt LLC 10mm Zinc Plated Hex Home Depot $0.82 ($0.41 each) Metric Bolt2 Crown Bolt LLC 10mm Zinc Plated Hex Home Depot $1.20 ($0.60 each) Crayola Air Dry Clay 14 oz. black colorHobby Lobby$3.99

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Assembly Procedure  Gather all materials and tools  Draw dimensions onto the Plexiglas with erasable marker  Cut out the dimensioned Plexiglas  Fit the Plastic Edging onto the Plexiglas, so that the ending goes halfway down the Plexiglas  Mark the plastic edging  Cut the proper size for the edging  Cut out two symmetrical openings into where the hinges will fit in  Line the plastic edging with caulk 18

Assembly Procedure (cont’d)  Refit the edging onto the Plexiglas  Drill two holes symmetrically place between the half point and the end of each side, where they meet the opening for the hinges  Put the screws into place so that the hinges are locked in place with the Plexiglas  Cut out 4 plastic pieces and cover the holes where the screw went in with the plastic pieces. (glue into place)  Attach onto car visor with hinges 19

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Sun Deflection Test a. Position car so it is facing the sun through the front windshield. b. Attach sun visor to manufactured car sun visor. Make sure it is secure. c. Position sun visor so that it is in between the driver’s eyes and the sun. d. Positioning yourself in the driver’s seat, look forward through the windshield. e. Determine if any sunlight is coming through onto your face from either through the sun visor or around it. 21

Angular Efficiency Test a. Repeat steps a-d for the Sun Deflection Test. b. Determine if light is coming through or around the visor or if the visor is impeding your vision in any way. Note your observations. c. Turn on the car and rotate it 45° clockwise from the previous position. d. Adjust the sun visor by angling it and also rotating the manufactured car visor. e. Repeat step b. f. Repeat steps c-e. g. Repeat step c-e again, but this time, turn 45° counterclockwise starting from the original position. h. Repeat c-e again, but turn 45° counterclockwise again, from last position in step g. 22

Safety Test a. Using the extra Plexiglas available, cut out the shape of the sun visor using a band saw. b. Obtain circular weights in 5-10 lb. increments. c. Lay the Plexiglas between two pieces of wood. d. Put on personal protective equipment. e. Lay the weights on the middle of the Plexiglas, one by one. After putting on each weight, record observations about the Plexiglas. f. Keep placing weight until the Plexiglas breaks. Record all observations. 23

Test data charts 24

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Conclusion page 26

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Acknowledgments 28  Teachers  Mr. Stephen Buchs  Experts  James Schuld  Zofia Schuld  Amit Desai  Paul Cotton  Ketan Sheladia  Dipak Patel