Material Storage and Material Storage and Dispensing Device for the Dispensing Device for the

KitchenKitchen

Charles E Schaefer, Jr. School of EngineeringDepartment of Mechanical Engineering

ME 424 Senior DesignProgress Presentation

Thursday, March 25th, 2004

Group 9Ethan Jayson

Cora LaFrance Judy Ng

Catherine OldfieldAdvisor: Professor Zhenqi Zhu

PRESENTATION PRESENTATION OVERVIEWOVERVIEW

OBJECTIVESOBJECTIVES

PRODUCT DESIGNPRODUCT DESIGN

PROTOTYPING PROGRESSPROTOTYPING PROGRESS

DESIGN TESTING/ANALYSISDESIGN TESTING/ANALYSIS

PRODUCT PACKAGINGPRODUCT PACKAGING

OBSTACLES ENCOUNTEREDOBSTACLES ENCOUNTERED

OBJECTIVESOBJECTIVES

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

SPRING 2004 SPRING 2004 SUMMARYSUMMARY

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 Day Website Final Report/Presentation

PRODUCT DESIGNPRODUCT DESIGN

MAJOR MAJOR COMPONENTSCOMPONENTS

DESIGN DETAILSDESIGN DETAILSModified for Greater Versatility– Free Standing– Wall Mounted– Cabinet Mounted

No Additional Parts Needed for All 3 No Additional Parts Needed for All 3 DesignsDesigns

Reduced Material = Reduced CostReduced Material = Reduced Cost

MOUNTING OPTIONSMOUNTING OPTIONSFREE STANDING DESIGNFREE STANDING DESIGN

Increased Support

– Movable on CountertopMovable on Countertop– Base Provides Sturdy Support for Base Provides Sturdy Support for

the Unitthe Unit

MOUNTING OPTIONSMOUNTING OPTIONS

– More Counter More Counter SpaceSpace– Mounts Via Screws in the StandMounts Via Screws in the Stand

WALL MOUNTED DESIGNWALL MOUNTED DESIGN

Screw Holes

Mounts To Wall

MOUNTING OPTIONSMOUNTING OPTIONSCABINET MOUNTED DESIGNCABINET MOUNTED DESIGN

Screw Holes

– Mounts to the Underside of a CabinetMounts to the Underside of a Cabinet– Mounting Holes at the Base of StandMounting Holes at the Base of Stand

Mounting Holes

PROTOTYPINGPROTOTYPINGNecessary ElementsNecessary Elements– For TestingFor Testing– For DisplayFor Display

MaterialsMaterials

Part Acquisition PlanPart Acquisition Plan– ManufactureManufacture– Purchase Ready-MadePurchase Ready-Made

Current ProgressCurrent Progress

NECESSARY NECESSARY ELEMENTSELEMENTS

End Cap

Physical Testing

Container Screw Knob

Product Display

Cover Cap

Numerical Testing

Stand

MATERIALSMATERIALSContainer – Stereolithography ResinContainer – Stereolithography Resin

Screw – Mild Steel Screw – Mild Steel

End Cap – PlasticEnd Cap – Plastic

Knob – NickelKnob – Nickel

Cover – Plastic/Stereolithography Cover – Plastic/Stereolithography ResinResin

Stand – Plastic/AluminumStand – Plastic/Aluminum

Base – Plastic/AluminumBase – Plastic/Aluminum

PART ACQUISITION & PART ACQUISITION & PROGRESSPROGRESS

Manufacture Current ProgressContainer Completed

Screw In Progress

End Cap Completed

Cover Future Step

Cap Future Step

Stand Future Step

Base Future Step 

Purchase Current ProgressScrew In Progress

Knob Completed

PRODUCT TESTINGPRODUCT TESTINGNumerical Engineering Analyses:Numerical Engineering Analyses:– Stress AnalysisStress Analysis– Displacement AnalysisDisplacement Analysis

Working Prototype Test Plan:Working Prototype Test Plan:– Accuracy of Screw DispenserAccuracy of Screw Dispenser– Strength of ComponentsStrength of Components– Functionality/User FriendlinessFunctionality/User Friendliness

CONTAINER - STRESS ANALYSISCONTAINER - STRESS ANALYSIS

CONTAINER - DISPLACEMENT CONTAINER - DISPLACEMENT ANALYSISANALYSIS

WALL MOUNTED - STRESS WALL MOUNTED - STRESS ANALYSISANALYSIS

WALL MOUNTED - DISPLACEMENT WALL MOUNTED - DISPLACEMENT ANALYSISANALYSIS

UNDER CABINET - STRESS UNDER CABINET - STRESS ANALYSISANALYSIS

UNDER CABINET - DISPLACEMENT UNDER CABINET - DISPLACEMENT ANALYSISANALYSIS

TEST RESULTSTEST RESULTSContainerContainer– Max Displacement: 0.0467 inches Max Displacement: 0.0467 inches – Max Stress: 6976.31 psi Max Stress: 6976.31 psi – Factor of Safety: 2.9Factor of Safety: 2.9

StandStandWALL MOUNTEDWALL MOUNTED– Max Displacement: 0.0000203 inchesMax Displacement: 0.0000203 inches– Max Stress: 192.26 psiMax Stress: 192.26 psi– Factor of Safety: 100Factor of Safety: 100

UNDER CABINETUNDER CABINET– Max Displacement: 0.0000218 inchesMax Displacement: 0.0000218 inches– Max Stress: 192.6 psiMax Stress: 192.6 psi– Factor of Safety: 100Factor of Safety: 100

Group 9

CURRENT PROGRESSCURRENT PROGRESS

Test Functionality of PrototypeTest Functionality of Prototype

Design ChangesDesign Changes

Working Model Material SelectionWorking Model Material Selection

Fabricate Working ModelFabricate Working Model

Acquire Material/Components for PrototypeAcquire Material/Components for Prototype

Computer Aided Stress/Strain TestingComputer Aided Stress/Strain Testing

Apply Necessary Design ChangesApply Necessary Design Changes

Website DevelopmentWebsite Development

Engineering Design Day PosterEngineering Design Day Poster

Final Report & Presentation

PACKAGING PACKAGING OPTIONSOPTIONS

Visit to Grocery Store to Survey “Typical” Visit to Grocery Store to Survey “Typical” Package Sizes of Dry IngredientsPackage Sizes of Dry Ingredients

Recommendation is to Produce Four Sizes:Recommendation is to Produce Four Sizes:– Large (22-Cup Capacity): Flour, Sugar, etc.Large (22-Cup Capacity): Flour, Sugar, etc.– Medium (10-Cup Capacity): Confectioner’s Medium (10-Cup Capacity): Confectioner’s

Sugar, Sugar, Baking Soda, etc.Baking Soda, etc.– Small (2-Cup Capacity): Baking Powder, Yeast, Small (2-Cup Capacity): Baking Powder, Yeast,

etc.etc.– Extra Small (1/2-Cup Capacity): Spices, Extra Small (1/2-Cup Capacity): Spices,

SeasoningSeasoning

OBSTACLESOBSTACLESObstacles EncounteredObstacles Encountered– Stereolithography of PartsStereolithography of Parts– Obtaining Screw with Proper Obtaining Screw with Proper

DimensionsDimensions– Develop Plan for Multiple Mounting Develop Plan for Multiple Mounting

OptionsOptions

Anticipated ProblemsAnticipated Problems– Fabrication of Working ModelFabrication of Working Model– TestingTesting

THANK YOU!THANK YOU!