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

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Presentation on theme: "MANUALLY ADJUSTABLE STILTS “Easy Lifts” 1 INTRO IDEAS PROBLEM DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION."— Presentation transcript:

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

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

3 INTRO IDEAS PROBLEM DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION 3

4 CURRENT STILTS: 1.Used for tasks requiring small rises in elevation 2.Difficulties: Getting on stilts Picking up objects Adjusting INTRO IDEAS PROBLEM DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION 4

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

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

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

8 INTRO IDEAS PROBLEM DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION 8

9 LIFTING DEVICE 1.Power screw 9 INTRO DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION IDEAS PROBLEM

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

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

12 LOCKING DEVICE Rotary Ratchet 12 INTRO DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION IDEAS PROBLEM

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

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

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

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

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

18 LINEAR DAMPER: 1.Gas Spring 2.Provides upward force 3.SAFETY feature 18 INTRO DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION IDEAS PROBLEM

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

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

21 21 INTRO DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION IDEAS PROBLEM ItemItem CostQty.Total Cost Stilts$ Bearings$1.4116$22.56 Bushings$0.7216$11.52 Aluminum Plating$ Steel Flat Bar$6.962$13.92 Aluminum Flat Bars$6.306$37.80 Pins$6.002$12.00 Concept Prototype$ Snap Rings$ Actuator$30.002$60.00 Locking Mechanism$ Damper$50.002$ TOTAL (with 10% contingency)$1,274.16

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

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

24 WHAT’S LEFT? 1.Fine details on locking mech. 2.Finalize the damper force 24 INTRO DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION IDEAS PROBLEM

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

26 WALKING WEIGHTS: 1.Current Stilts weight: 15.5 lbs. 2.Competitor stilts: lbs 3.Miner’s work boots: 7 lbs 4.Target stilt weight: <20 lbs 26 INTRO DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION IDEAS PROBLEM

27 27 INTRO DESIGN ANALYSIS BUDGET SCHEDULE CONCLUSION IDEAS PROBLEM


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