By: Nicole Worytko Avani Patel Brian Prohaska Kyle Hughes Catapult Project By: Nicole Worytko Avani Patel Brian Prohaska Kyle Hughes

Agenda 1. Team Development 9. Select Approach 2. Problem Statement 10. Design Proposal 3. Background/Justification 11. Prototype 4. Scope 12. Test and Monitor 5. Brainstorming 13. Refine 6. Research and Generate Ideas 14. Lessons Learned 7. Criteria and Constraints 15. Summary 8. Explore Possibilities

Roles Leader: Brian Prohaska Scribes: Avani Patel & Nicole Worytko Time Keeper: Kyle Hughes

Constitution Stay Focused Respect others Be open to new ideas No idea is a bad idea Listen to others while they are talking

Timeline Plan Date Act. Date Responsibility Task Start Comp 03/29 03/31 Team Brainstorming 04/02 04/12 Avani Explore Possibilities 04/05 04/13 04/14 Select Approach 04/06 04/19 Brian/Kyle CAD Drawings 04/16 04/26 05/01 05/15 Build Catapult 04/29 05/04 05/17 05/18 Test & Monitor 05/05 05/07 Refine 03/18 05/14 05/20 Avani/Nicole Tech Report 04/01 04/20 Nicole/Avani PowerPoint 05/19 Review

Problem Statement Our group is working for Middle Ages military manufacturer in Europe. Have been asked to design catapult that will throw tennis balls further than any other. For King’s safety, catapult will be operated from distance of at least four feet.

Background Occurring in Middle Ages (1450 A.D.) In Europe Military manufacturer Assigned by King Needs to throw tennis ball at least 30 ft. Operate from at least four ft.

Customers Mr. Pritchard King

Scope Design, build and test a catapult Deliverables: Final report Power Point Catapult Resources: Mr. Pritchard, Internet, and Parents of members

(Cont.) - Materials: Wood Screws Bungee cord Screw with hook Tennis ball Metal and Wood Rod

Deliverables Technical Report Power Point Catapult

Brainstorming - Catapult’s function - Catapult types - Wood types - Base types

Research and Generate Ideas Function - Used during attacks - Flung giant boulders at enemies Types - Trebuchet (deals with balance) - Onager (uses wire/tension to fire arm)

(Cont.) Wood Types Base Types - Whitewood, oak, pine, birch and maple - Hollow square base - Full base - A triangle base

Criteria and Constraints - Throw from 4 ft. - Throw at least 30 ft. - Can’t be taller than 24” - Base can’t be more than 24 x 24” - User safety

Nicole’s Solution Pros+ Cons- + Trajectory angle drawn + Dimensioned + Parts describe what they do + Scale drawn - Hard to follow - Hard to build