A6: Team RallyeA6: Team RallyePotable Water StillPotable Water Still

Presented by:Presented by:Mike Mike

McConnellMcConnellNovember 2, November 2,

20062006Nicole Del Rey Mike McConnell Tim Rodts Eric

Sabelhaus

Project StatusProject Status

Project StatusProject Status

Design StatusDesign Status Power (…being assembled…)Power (…being assembled…)

Pedals Pedals Intermediate Gears Intermediate Gears Generator Generator Heat Source (assembled and tested)Heat Source (assembled and tested)

Heating bowl Heating bowl Sand Sand Baby bottle Baby bottle Condensing (assembled and tested)Condensing (assembled and tested)

Tygon tubing, 2Tygon tubing, 2ndnd baby bottle (tested well) baby bottle (tested well) Intelligence (show-stopper)Intelligence (show-stopper)

Temperature Sensor with DisplayTemperature Sensor with Display WebsiteWebsite

Semester OutlookSemester OutlookAssignments Prototype Other

19-Sep Trade study proposals submitted Website createdConcept memo submitted

26-Sep Preliminary cost estimation Determine intelligence functionsOrder nichrome wire

3-Oct Order generatorOrder polymerOrder sensorsOrder structural material

10-Oct Trade studies completed Order air pumpOrder pressure valvesProgram microcontroller

17-Oct24-Oct Manufacture polymer Initial CAD Assembly developed

Test heat sourceTest air pump

31-Oct Build structureTest pressure valves

7-Nov Assemble electronics, sensors, valves14-Nov Install components

Test fully operating prototype16-Nov Draft design doc. completed21-Nov Prototype demonstration28-Nov Concept design review5-Dec Design documentation due

!!

In the works

Show StoppersShow Stoppers IntelligenceIntelligence

Temperature sensor needsTemperature sensor needs Electrical connectionsElectrical connections Water proofingWater proofing Computer programmingComputer programming

Generator – Sprocket connectionGenerator – Sprocket connection Purchase a sprocket with set-screwPurchase a sprocket with set-screw Machine a part to interfaceMachine a part to interface

Action Items Action Items from last weekfrom last week

(Week 10)(Week 10)

-1--1- TASK: Order Bearings for Intermediate GearsTASK: Order Bearings for Intermediate Gears

ACTION:ACTION: Obtained gear system from a different bicycleObtained gear system from a different bicycle Gears already on a rotating shaftGears already on a rotating shaft Eliminates need to purchase bearingsEliminates need to purchase bearings Gear system has been installed in prototypeGear system has been installed in prototype

-2--2- TASK: Order a coupler to attach the generator shaft to TASK: Order a coupler to attach the generator shaft to

an adjacent shaft which rotates on bearings to absorb an adjacent shaft which rotates on bearings to absorb radial loadsradial loads

ACTION:ACTION: Contacted Windstream Power (generator manufacturer)Contacted Windstream Power (generator manufacturer) Learned that generator can support radial loadsLearned that generator can support radial loads Decided to directly drive the generator shaftDecided to directly drive the generator shaft Eliminates need for coupler, 2 additional bearingsEliminates need for coupler, 2 additional bearings

-3--3- TASK: Create CAD TASK: Create CAD

modelsmodels ACTION:ACTION:

Action Items Action Items for this weekfor this week

(Week 11)(Week 11)

-1--1- TASK: Prepare Temperature SensorTASK: Prepare Temperature Sensor

ACTION:ACTION: Consult Mr. Brownell to see if current temperature Consult Mr. Brownell to see if current temperature

sensors are usablesensors are usable Connect wires to sensor OR order new sensorsConnect wires to sensor OR order new sensors Begin programmingBegin programming

-2--2- TASK: Create 3-Way InterfaceTASK: Create 3-Way Interface

Generator output wire/Voltmeter leads/Female outletGenerator output wire/Voltmeter leads/Female outlet

ACTION:ACTION: Purchase wire capsPurchase wire caps Obtain and cut extension cordObtain and cut extension cord Attach proper connectionsAttach proper connections Seal with electrical tapeSeal with electrical tape Voltmeter

To heating element

-3--3- TASK: Create driveshaft/sprocket interfaceTASK: Create driveshaft/sprocket interface

ACTION:ACTION: Purchase a sprocket with set-screw (Windstream, Purchase a sprocket with set-screw (Windstream,

McMaster-Carr)McMaster-Carr) Design and machine any necessary interfacing Design and machine any necessary interfacing

partpart

Questions?Questions?