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Saturdayaturday, June 1st
The majority of this day was spent on a Skype call with Andy, addressing the conceptual issues with the ergometer. 
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- Presentation:
- finish CAD, although not necessary
- run Brian's Brian’s version of Tennant's Tennant’s code, or find a floppy drive
- make clear that all observations are of the floating pulley, erg,
- want to develop differential model
- clean up slides
- some slides are incomplete
- Contact Concept II
- get contact info
- draft email or phone message
- Work on erg
- compressing a chain doesn't doesn’t make sense
- idea: bungee cord at end of #41 chain – clear with Ellen and Andy
- Order sprockets - ASAP
- changing gear ratios
- Set up a blog
- wordpress, blogspot, piazza?
- compressing a chain doesn't doesn’t make sense
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For the loose bungee on top, while it would be easy to attach the one end to the stern, how to attach it to the chain half way across the erg was a challenge. The only solution we could think of would be to wrap something really tightly around the bungee and the chain, and hope there is enough friction to hold the two together. We took a twist tie and wrapped it around the two, and hoped for the best. (Figure 3)
Figure 3: Twist tie around the bungee and chain
To hold the loose end of the bungee, we looped it around itself a few times and taped it beneath the footrests so it's out of the way. The system, as a whole, looked like figure 4.
Figure 4: The completed Setup
When the bungees are slack (unlike they are in the figure,) they become wider and fall off the edges of the bar. The cardboard pieces on the sides keep the bungees from falling off of the sides.
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