Material Storage and Dispensing Device for the Kitchen Charles E Schaefer, Jr. School of Engineering Department of Mechanical Engineering ME 424 Senior Design Proposal Presentation Thursday, February 12th, 2004 Group 9 Ethan Jayson Cora LaFrance Judy Ng Advisor: Professor Zhenqi Zhu

PRESENTATION OVERVIEW  Project Summary  Fall 2003 Recap & Conclusions  Objectives for 2004  Disciplines  Approach & Methods  Anticipated Problems  Project Deliverables

PROJECT SUMMARY  Design, Analyze & Test a Concept for a Material Storage & Dispensing Device  Explore Existing Products and Designs  Integrate Features to form Improved Design  Perform Material Selection, DFM, and Cost Analyses  Produce Final Design that Meets Design Specifications

FALL 2003 SUMMARY State-of-the- Art Review Meeting with Advisor/Sponsor Rough Sketches Brainstorming Patent Search Conceptual Designs Alternative Designs Concept Screening & Scoring Final Concept Selection Engineering AnalysisDFMCost Analysis

MAJOR COMPONENTS

PRODUCT ASSEMBLY Container Lid Container Stand Upright Stand Base Spiral Turning Knob Material Exit

MATERIAL SELECTION Container: Polystyrene  Low Cost  High Impact Resistance  FDA Compliant for Use with Food  Good Transparency Stand Base: Cast Aluminum Stand Upright: Stainless Steel

TOTAL PART COST ESTIMATION

 Determined Criteria for Successful Completion of Design Project  Followed Design Process: Literature and Product Research Literature and Product Research Development of Specifications Development of Specifications Formulation of Conceptual and Alternative Designs Formulation of Conceptual and Alternative Designs Final Design Selection Final Design Selection Engineering and Cost Analyses Engineering and Cost Analyses FALL 2003 CONCLUSIONS

 The Design Team Delivered an Innovation, Simple & Efficient Solution to Design Problem  Design: Spiral Dispensing Mechanism Height: 17.3 inches Height: 17.3 inches Storage Capacity: 22 Cups (7.5 lbs. of Flour) Storage Capacity: 22 Cups (7.5 lbs. of Flour) Dispensing Capability: ¼ Cup per Revolution Dispensing Capability: ¼ Cup per Revolution Material + Assembly Cost: $5 to $6 per unit Material + Assembly Cost: $5 to $6 per unit

FALL 2003 CONCLUSIONS  The Design for the Stand Needs Improvement Based on: FEA Analysis Results FEA Analysis Results Aesthetic Appeal Aesthetic Appeal Comments and Feedback Comments and Feedback  Further Design Considerations are Necessary before Design Finalization

OBJECTIVES FOR 2004 TestingPrototype Meet Specifications Quality of Product Promotion of Product Accuracy User Friendly Manufacturability Website Engineering Day Develop Test Procedures Analyze Results Working Prototype Final Prototype

DISCIPLINES – Fall 2003  Engineering: Statics Statics Dynamics Dynamics Materials Properties Materials Properties DFMA DFMA  Industrial Design: Ergonomics Ergonomics Visual Appeal Visual Appeal  Administrative: Time Management Time Management Cost Management Cost Management Patent Research Patent Research  Marketing: Market Research & Analysis Market Research & Analysis

DISCIPLINES - SPRING 2004  Prototyping  Data Analysis  Mechanics of Materials  Manufacturing  Marketing  Web Development  Time/Cost Management

APPROACH & METHODS Design Changes Working Model Material Selection Fabricate Working Model Test Mechanism in Model Computer Aided Stress/Strain Testing Apply Necessary Design Changes Stereolithography of Final Design Website Development Engineering Design Day Poster Final Report & Presentation

ENGINEERING ANALYSIS STRESS & DISPLACEMENT Center of Gravity Application of Load From Flour = 7.5 lbs.

STRESS ANALYSIS Location of Highest Stress Maximum Von Mises Stress: MPa

DISPLACEMENT ANALYSIS Location of Max Displacement

REVISED STAND DESIGN   Container & Spiral Will Remain the Same   Improved Stand Design to Reduce Stresses and Deflections   Material: Polystyrene   Goal of Final Design Stability Material Usage Cost Effectiveness

NEW STAND IDEA Hole For Stand

PROTOTYPE FABRICATION  Spiral Buy Similar Shape Buy Similar Shape AugerAuger Injection Molding ScrewInjection Molding Screw Machine a Screw Machine a Screw  Container Construct From Scratch Construct From Scratch PlasticPlastic Metal SheetingMetal Sheeting Modify Tupperware-like Containers Modify Tupperware-like Containers

EXPECTED EXPENSES ITEMCOST Stereolithography ($200/hr x 24 hrs)$ Container$50.00 Spiral$60.00 End Knob$60.00 Cap Piece$40.00 Top $40.00 Cap$40.00 Stand$50.00 Site Visit (gas, food, etc.) $100 Material (Poster, Poster Board, CD's) $75 Miscellaneous $50 Total $ $ 5365

ANTICIPATED PROBLEMS  Mechanism Does Not Perform to Required Specifications.  Finding Proper Materials for Creating a Working Prototype.  Develop a Cost Effective Method to Produce the Product.  Acquiring Parts in Time for Testing.  Learning How to Develop a Web Site.

DELIVERABLES  Working Prototype  Engineering Drawings and Specifications  Test Results  Final Prototype  Summary of Project Expenses  Informative Website  Poster for Engineering Design Day  Final Report and Presentation Showing All Stages of Development

A New Addition to Group 9  New Group Member: Catherine Oldfield  3 - Member Group  4 - Member Group  An Additional Source of Ideas and Creativity  Change of Group Dynamics

THANK YOU!