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1 PFADS Design Project Team Whitey Ryan Sellman Jason Marks Toby Taylor University of the Pacific 3601 Pacific Ave. Stockton, CA 95211

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Dec. 12Team Whitey2 Overview 4 Introduction 4 Objectives 4 Approach 4 Results 4 Conclusions 4 Recommendations

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Dec. 12Team Whitey3 Introduction e Create P.F.A.D.S. e Compete against other P.F.A.D.S. e Must follow given constraints

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Dec. 12Team Whitey4 Constraints 4 18x 18x 18 4 No more than 10 pounds 4 Less than $20

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Dec. 12Team Whitey5 Criteria 4 Minimize weight 4 Maximize accuracy 4 Minimize volume 4 Rolls/slides straight

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Dec. 12Team Whitey6 Objectives 4 Practice the design process 4 Learn about projectile motion 4 Work as a team

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Dec. 12Team Whitey7 Preliminary Ideas 4 Rubber Band 4 Flexible Steel 4 Mousetrap

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Dec. 12Team Whitey8 Rubber Band

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Dec. 12Team Whitey9 Flexible Steel

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Dec. 12Team Whitey10 Mousetrap

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Dec. 12Team Whitey11 Refinement 4 Flexible steel not accurate 4 Rubber band not powerful 4 Mousetrap idea best fit 4 Spring loaded catapult

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Dec. 12Team Whitey12 Spring Design

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Dec. 12Team Whitey13 Implementation 4 Decided on mousetrap 4 Mousetrap failed, changed to springs for more power.

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Dec. 12Team Whitey14 Final Design

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Dec. 12Team Whitey15 Construction 4 Listed parts needed and bought them. 4 Used Tool from Tobys Room 4 Made working design

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Dec. 12Team Whitey16 Testing 4 Mousetrap idea was too weak 4 Went back to decision process 4 Decided on a stronger spring design

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Dec. 12Team Whitey17 Final Mechanism 4 Slides on boards 4 Spring powered 4 Pulley triggered 4 Weight

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Dec. 12Team Whitey18 Picture Of Final Design

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Dec. 12Team Whitey19 Results 4 Trigger Mechanism did not work in competition. 4 Resulted in embarrassment and no score. 4 Advantages 4 Disadvantages

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Dec. 12Team Whitey20 Recommendations 4 Mousetrap is not powerful enough 4 Wood and metal 4 Add better mechanism for rolling straight.

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Dec. 12Team Whitey21 Conclusions 4 Need a better design 4 Needed more testing before competition. 4 Needed more reliable materials.

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Dec. 12Team Whitey22 Acknowledgement 4 John (Home Depot Employee) 4 Henry (engineer student) 4 Brandon Stevens (roommate)