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INTRODUCTION

INTRO. MANUALLY ADJUSTABLE STILTS “Easy Lifts”. INTRODUCTION. PROBLEM. IDEAS. DESIGN. ANALYSIS. BUDGET. SCHEDULE. CONCLUSION. INTRO. GROUP MEMBERS Trent Hilliard Ian Juurlink Brad Poirier Mitchell Weir SUPERVISOR Dr. Marek Kujath. INTRODUCTION. PROBLEM. IDEAS. DESIGN.

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INTRODUCTION

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  1. INTRO • MANUALLY • ADJUSTABLE • STILTS • “Easy Lifts” INTRODUCTION PROBLEM IDEAS DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION

  2. INTRO • GROUP MEMBERS • Trent Hilliard • Ian Juurlink • Brad Poirier • Mitchell Weir • SUPERVISOR • Dr. MarekKujath INTRODUCTION PROBLEM IDEAS DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION 2

  3. INTRO PROBLEM PROBLEM IDEAS DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION

  4. INTRO • CURRENT STILTS: • Used for tasks requiring small rises in elevation • Difficulties: • Getting on stilts • Picking up objects • Adjusting PROBLEM PROBLEM IDEAS DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION

  5. INTRO • GETTING UP: PROBLEM PROBLEM IDEAS DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION

  6. INTRO • PICKING UP OBJECTS: PROBLEM PROBLEM IDEAS DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION

  7. INTRO • GETTING DOWN: PROBLEM PROBLEM IDEAS DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION

  8. INTRO PROBLEM PROBLEM IDEAS DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION

  9. INTRO • LIFTING DEVICE • Power screw IDEAS PROBLEM IDEAS DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION • http://forums.vwvortex.com

  10. INTRO • LIFTING DEVICE • 2. One leg-lift IDEAS PROBLEM IDEAS DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION

  11. INTRO • LIFTING DEVICE • 3. Hydraulic Scissor Lift IDEAS PROBLEM IDEAS DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION www.autoliftuk.com

  12. INTRO • LOCKING DEVICE • Rotary Ratchet IDEAS PROBLEM IDEAS DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION • www.wikipedia.org • www.istockphoto.com

  13. LIFTING DEVICE: SCISSOR LIFT INTRO DESIGN PROBLEM IDEAS DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION

  14. LIFTING DEVICE: SCISSOR LIFT INTRO DESIGN PROBLEM • 1. Member Design • 2. Member • Confinement • 3. Assembly • Materials • Aluminum • Bushings • Snap Rings IDEAS DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION

  15. LIFTING DEVICE: SCISSOR LIFT INTRO DESIGN PROBLEM IDEAS DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION

  16. LOCKING MECHANISM: INTRO DESIGN PROBLEM IDEAS DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION

  17. LIFTING DEVICE: SCISSOR LIFT INTRO DESIGN PROBLEM IDEAS DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION

  18. INTRO • LINEAR DAMPER: • Gas Spring • Provides upward force • SAFETY feature DESIGN PROBLEM IDEAS DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION

  19. FORCE DETERMINATION: INTRO ANALYSIS PROBLEM IDEAS W = Force Applied L = Length of Beam D = Location of Center of Gravity DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION

  20. Stress Analysis: INTRO ANALYSIS PROBLEM IDEAS DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION

  21. INTRO BUDGET PROBLEM IDEAS DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION

  22. INTRO • CRITICAL SCHEDULE ITEMS • Jan/14/10: • Final Drawing Submission • Feb/01/10: • All material obtained • March/01/2010: • Fabrication and assembly SCHEDULE PROBLEM IDEAS DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION

  23. INTRO • CRITICAL SCHEDULE ITEMS • March/22/10: • Testing • April/08/10: • Final report submission • April/10/10: • Final presentation SCHEDULE PROBLEM IDEAS DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION

  24. WHAT’S LEFT? • Fine details on locking mech. • Finalize the damper force INTRO CONCLUSION PROBLEM IDEAS DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION

  25. QUESTIONS? INTRO CONCLUSION PROBLEM IDEAS DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION

  26. INTRO • WALKING WEIGHTS: • Current Stilts weight: 15.5 lbs. • Competitor stilts: 14-17 lbs • Miner’s work boots: 7 lbs • Target stilt weight: <20 lbs CONCLUSION PROBLEM IDEAS DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION

  27. INTRO CONCLUSION PROBLEM IDEAS DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION

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