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Design Presentation
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Mousetrap Car Project
Mousetrap Car Project1006ENG Design ProjectPresentation StructureDavidDesign CriteriaDesign ProcessTesting and CalculationsMohamedSummary of each designDesign ComparisonBrendanAnalysis of final designConstruction processSummary
Design CriteriaDesign CriteriaSymmetry Performance GoalsMousetrap is only form of propulsionStationary starting positionMay not hit the walls of the track
Vehicle is to travel along a straight 5-metre track3 seconds8 secondsProject TimeframeThe client specified a 4-week timeframe for the project
Design Process
Key Design ConsiderationsWheel size
Torque and the length of the mousetrap lever arm
Friction
Testing ProceduresRolling friction test
Sliding friction test
Mousetrap torque test
7Design 1Vehicle was relatively heavyDid not meet performance goalsRolling friction too high
Design 2Priority given to weight reductionRubber tread increased ground frictionTimber ruler used for lever arm
Design 3Axle weight reducedMetal washers replaced by plastic washersVehicle meets all design criteria
Design Comparison
Design Comparison
Analysis of Final DesignSimple, light-weight design
Capable of achieving performance goals
Failed to travel straight during final presentation
Causes of failure were analysed
Analysis of Final DesignProblems with consistency of performance
Minor modifications were made after the presentation to the client
Location of washers
Construction Of Final DesignSimple design
Easily reproducible
Low production cost, $5.49SummaryModifications to the vehicle made based on testing and calculations
3 vehicle designs were constructed and tested
Final vehicle design meets all design criteria
Vehicle completes 5-metre track:2.9 seconds8.2 seconds