A6: Team Rallye Potable Water Still Presented by: Tim Rodts October 26, 2006 Nicole Del Rey Mike McConnell Tim Rodts Eric Sabelhaus

Design Status Power Power  Pedals  Gears  Generator Heat Source Heat Source  Ceramic bowl with embedded wire heats sand; in turn heats container. Polluted water container Polluted water container  Beaker Intelligence Intelligence  Temperature Sensor with DisplayWebsite Website

Design Status ‘Inspired’ by ASME guidelines ‘Inspired’ by ASME guidelines Currently ahead of schedule as far as starting to build prototype Currently ahead of schedule as far as starting to build prototype Cannot program microcontroller without temperature sensor Cannot program microcontroller without temperature sensor SHOWSTOPPER: SHOWSTOPPER: Designing/purchasing shaft coupler that will accommodate metric generator shaft. Designing/purchasing shaft coupler that will accommodate metric generator shaft. Packaging of all components. Packaging of all components.

Semester Outlook ! In the works

Action Items from Week 8 (10/10)

-1-  There will be no sealant on the ceramic bowl.  Sand will be placed in bowl. A beaker will sit in the sand.

-2-  Condenser connection to polluted water container now simplified.  Rubber stopper with a direction connection to the polluted water container.

-3-  Front post now designed to pivot.  Rear connections permanent.  Will optimize rider comfort.  Avoids pre-stresses on base. Pivot joint

Action Items for Week 10 (10/31)

-1- Order bearings for sprocket shaft. Order bearings for sprocket shaft. 8 mm shaft diameter 8 mm shaft diameter 39 mm hole-to-hole length. 39 mm hole-to-hole length. Above dimensions are have been chosen to fit safely within ring of screws necessary to mount sprocket. Part #: 1434K33 Part #: 1434K33 Price: $8.11 each Price: $8.11 each

-2- Design/order shaft coupler Design/order shaft coupler Needs to couple 2 shafts, 8 mm in diameter. Needs to couple 2 shafts, 8 mm in diameter. Needs to transmit 100% of 26 N-m of torque. Needs to transmit 100% of 26 N-m of torque. Clamping coupler vs. set-screw coupler. Clamping coupler vs. set-screw coupler.

-3-  Continue building CAD models of all individual parts.  Create assembly.  Will allow us to troubleshoot space and packaging issues not currently visible.

Questions?