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Soap Box Derby, Challenger Division (SOAP) Final Presentation Spring 2008

Soap Box Derby, Challenger Division (SOAP) Final Presentation Spring 2008. Mission Statement. To increase the confidence and self-esteem of children with disabilities while also encouraging their participation in soap box races with their peers. Background Research. Insert Project Name Here.

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Soap Box Derby, Challenger Division (SOAP) Final Presentation Spring 2008

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  1. Soap Box Derby, Challenger Division (SOAP)Final PresentationSpring 2008

  2. Mission Statement • To increase the confidence and self-esteem of children with disabilities while also encouraging their participation in soap box races with their peers.

  3. Background Research Insert Project Name Here • This project will address the need of two cars for the Lafayette Soap-Box Derby Challenger Division. • There is nothing currently on the market to address this need.

  4. Soap Box Derby - Challenger Division

  5. Goals of the Project Insert Project Name Here • We hope to make a kit that can be sold and shipped around the country. • The original goal for this semester was to deliver two cars by the summer. • This goal has been extended until the end of next semester due to unanticipated set-backs.

  6. Goals of the Project Insert Project Name Here • What is the success criteria? • The project will be successful when two cars are created for the challenger division. • What are the deliverables? • 2 soap box derby cars • CATIA modeling of all parts included

  7. Shell

  8. Shell • To make our shell a mold is required. • Layers of high density foam are glued together to form a mold for our shell.

  9. Shell Mold • Using a hotwire knife we shaped our mold.

  10. Shell Mold: Next Steps • Next semester the mold will be shaved down until it fits our requirements. • Send out the mold to a fiberglass company to form two shells.

  11. Chassis

  12. Chassis: Changing Materials • Reasons for moving away from original wood design: • Using composite material the new chassis will be an estimated 16kg lighter (~32lbs). • A metal frame will last longer than a wooden frame. • A solid piece of poplar this size, in a butcher block pattern, is not easily obtained.

  13. Chassis: DuraPlate • Problem: The DuraPlate needs extra support to hold all of the weight. • Solution : Add a frame under the DuraPlate • Adds more structural stability • Prevents the DuraPlate from striking the ground while “bottoming out” on top of the hill. • Can help attach the shell to the chassis with bolts.

  14. Chassis: Design • 1.25” square tubing with the DuraPlate sheet attached directly on top. • The metal frame will provide support, and will allow the shell to be easily attached to the frame with removable bolts. • The cross beams are located at the back end under each seat for both the driver (rear) and passenger (front).

  15. Axles

  16. Requirements for Axles • High strength; able to support the applied forces with little to no deflection • Anti-corrosion/ rust

  17. Axle Design

  18. Steering

  19. Steering Design Chain and Sprocket System: • Guard Frame:

  20. Feedback System

  21. Feedback System • Definition: A mechanism on the car that will allow the child with special needs to have the feeling of having control over the car. • However for safety, it is important that the car is solely being controlled by the co-pilot. • A feedback system is important for the child with special needs to get the full experience of driving.

  22. Feedback System • For a more realistic experience, tension should be felt when the wheel is turned. • Our design uses spring dampeners to gain this tension • Dampeners will be placed on the steering column in the front of the car. • When the wheel is turned, the front steering column will move, but the wheels will not turn.

  23. Brakes

  24. Braking System • Our design has a larger brake pad area to be able to stop the heavier challenger car. • New design will have 6x6” area • Metal pad will be covered by thick rubber truck tire.

  25. Seating

  26. The Seat • Included Positive Mounting Bars • Molded, High-Impact Mounting • Reinforced Mounting Sockets • Dimensions • 17.75” High • 18” Wide • 21” Deep

  27. Sliding Brackets Summit Racing • Compact Design • Most brackets we found were made for cars • Easy Attachment to both the floorboard and Seat • Included all hardware

  28. Seat Frame • Connects the seat to the sliding brackets • Supports the seat back • Will be used as the mounting for the seatbelt • Made of 3/8” aluminum plate and 1” round tubing Front Top Overall Side

  29. Budget

  30. SOAP Budget

  31. Next Semester and Beyond: • Finish building two complete challenger cars to give to Lafayette Soap Box Derby. • Update designs for current car. • Build two working soap box challenger cars. • Research ways to reproduce the cars in kit form. • Design a challenger car that will be more economical and affordable, so it can be sold as a kit nation-wide.

  32. Suggestions? • We are always open to suggestions and looking for improvements, if something was unclear we can help to clarify it now.

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