PDR: 4/1/08PDR: 4/1/08

Pinwheel Technologies (C3)Pinwheel Technologies (C3)Heather BlahaHeather Blaha

Matt FuxaMatt FuxaJoey KingJoey King

Michael McConnellMichael McConnellDomenic TassoniDomenic Tassoni

OverviewOverview

Vertical-Axis Wind TurbineVertical-Axis Wind TurbineSavoniusSavonius Turbine

Interchangeable ShaftInterchangeable Shaft

Last Week’s Action ItemsLast Week’s Action Items

Define ‘Step Two’Plan from Raw to FinalMechanical Components

Finalize circuit logicDecide on intelligenceCircuit Diagram

‘‘Step Two’Step Two’

Step One was receiving parts

Step Three is displaying the final product

Step Two is EVERTHING IN BETWEENFabricationAssembly

‘‘Step Two’Step Two’

ShaftsTurn to proper sizeInstall bearings, sprockets, shaft couplings

Machine Flats and KeywaysAlign centers

BaseCNC base plates

Mounting for bearings, generator, batterySeatings for vertical supports and diagonal straps

‘‘Step Two’Step Two’

TurbineMachine barrel into bladesMounting blades to the shaft

Hand CrankDiscuss with WelderCut/Drill pieces to make his job

easier

Circuit DesignCircuit Design

Circuit Block DiagramMicrocontroller input

= current sensor

Decided on ‘slow drain’ circuitReal circuitry is overly

complicated for MEsProducts already available

Circuit DesignCircuit Design

This Week’s Action ItemsThis Week’s Action Items

Finish all machiningShafts – Matt, Joey, MichaelBaseplate – Domenic, HeatherTurbine – Heather, Matt, DomenicHand Crank – Joey, Michael, (Paul)

This Week‘s Action ItemsThis Week‘s Action Items

Final Documentation Rough DraftPlan who/how:

Joey will take the lead on writing/organizingMeet/Discuss to divide up sections and assign

work to ‘experts’

Outline as a groupCombine individual efforts into one coherent

report

ConclusionConclusion

So close…yet so far away.

Show Stopper: Rotating Parts!

Behind:Waiting for electronic componentsWe can catch up!