1. Material Storage and Dispensing Device for the Kitchen Charles E Schaefer, Jr. School of Engineering Department of Mechanical Engineering ME 424 Senior Design Progress Presentation Thursday, March 25th, 2004 Group 9 Ethan Jayson Cora LaFrance Judy Ng Catherine Oldfield Advisor: Professor Zhenqi Zhu

2. PRESENTATION OVERVIEW OBJECTIVES PRODUCT DESIGN PROTOTYPING PROGRESS DESIGN TESTING/ANALYSIS PRODUCT PACKAGING OBSTACLES ENCOUNTERED

3. OBJECTIVES Finalize Design Quality of Product Promotion of Product Accuracy User Friendly Manufacturability Website Engineering Day Prototype Working Prototype Final Prototype Design Testing & Analysis Develop Test Procedures Analyze Results Meet Specifications All Components Material Selection

4. SPRING 2004 SUMMARY Prototyping: Stereolithography Prototyping: Purchase from Venders FEA Analysis Finalize Design Prototyping: Machine Shop Test Working Prototype Analyze Test Results Rework Model (if necessary) Final Prototype Engineering Design DayWebsiteFinal Report/Presentation

5. PRODUCT DESIGN

6. MAJOR COMPONENTS

7. DESIGN DETAILS Modified for Greater Versatility – –Free Standing – –Wall Mounted – –Cabinet Mounted No Additional Parts Needed for All 3 Designs Reduced Material = Reduced Cost

8. MOUNTING OPTIONS FREE STANDING DESIGN Increased Support –Movable on Countertop –Base Provides Sturdy Support for the Unit

9. MOUNTING OPTIONS –More Counter Space –Mounts Via Screws in the Stand WALL MOUNTED DESIGN Screw Holes Mounts To Wall

10. MOUNTING OPTIONS CABINET MOUNTED DESIGN Screw Holes –Mounts to the Underside of a Cabinet –Mounting Holes at the Base of Stand Mounting Holes

11. PROTOTYPING Necessary Elements –For Testing –For Display Materials Part Acquisition Plan –Manufacture –Purchase Ready-Made Current Progress

12. NECESSARY ELEMENTS End Cap Physical Testing ContainerScrewKnob Product Display CoverCap Numerical Testing Stand

13. MATERIALS Container – Stereolithography Resin Screw – Mild Steel End Cap – Plastic Knob – Nickel Cover – Plastic/Stereolithography Resin Stand – Plastic/Aluminum Base – Plastic/Aluminum

14. PART ACQUISITION & PROGRESS ManufactureCurrent Progress ContainerCompleted ScrewIn Progress End CapCompleted CoverFuture Step CapFuture Step StandFuture Step BaseFuture Step PurchaseCurrent Progress ScrewIn Progress KnobCompleted

15. PRODUCT TESTING Numerical Engineering Analyses: –Stress Analysis –Displacement Analysis Working Prototype Test Plan: –Accuracy of Screw Dispenser –Strength of Components –Functionality/User Friendliness

16. CONTAINER - STRESS ANALYSIS

17. CONTAINER - DISPLACEMENT ANALYSIS

18. WALL MOUNTED - STRESS ANALYSIS

19. WALL MOUNTED - DISPLACEMENT ANALYSIS

20. UNDER CABINET - STRESS ANALYSIS

21. UNDER CABINET - DISPLACEMENT ANALYSIS

22. TEST RESULTS Container –Max Displacement: 0.0467 inches –Max Stress: 6976.31 psi –Factor of Safety: 2.9 Stand WALL MOUNTED –Max Displacement: 0.0000203 inches –Max Stress: 192.26 psi –Factor of Safety: 100 UNDER CABINET –Max Displacement: 0.0000218 inches –Max Stress: 192.6 psi –Factor of Safety: 100

23. Group 9 CURRENT PROGRESS Test Functionality of Prototype Design Changes Working Model Material Selection Fabricate Working Model Acquire Material/Components for Prototype Computer Aided Stress/Strain Testing Apply Necessary Design Changes Website Development Engineering Design Day Poster Final Report & Presentation

24. PACKAGING OPTIONS Visit to Grocery Store to Survey “Typical” Package Sizes of Dry Ingredients Recommendation is to Produce Four Sizes: –Large (22-Cup Capacity): Flour, Sugar, etc. –Medium (10-Cup Capacity): Confectioner’s Sugar, Baking Soda, etc. –Small (2-Cup Capacity): Baking Powder, Yeast, etc. –Extra Small (1/2-Cup Capacity): Spices, Seasoning

25. OBSTACLES Obstacles Encountered –Stereolithography of Parts –Obtaining Screw with Proper Dimensions –Develop Plan for Multiple Mounting Options Anticipated Problems –Fabrication of Working Model –Testing

26. THANK YOU!