Week 7 Recap

In class today, we addressed the to do list we created from last time:

• Choosing a set of materials for the other wheel

So we are going to use a Lego wheel - one with a radius of about 0.75 inches (0.56 inches really).

• Get reflector off of bike wheel

Took a while, but we managed.

• Design support base for smaller wheel

The support base is made out of basic K'nex pieces.

 

Top left & right: the first version of the base structure for the small Lego wheel.

Bottom left: the team working hard on building the support.





The generator has to be mounted within the vertical plane relative to the suspended Lego wheel. 
But because we do not have the generators on site with us, creating the base from the mix of Lego and K'nex pieces was impeded. The generator is about 30 mm in diameter, 48 mm (~1.75 inches) long, and with a shaft of 2.5 mm. 

Generator image from Ebay

• Base structure

Megan and Sarah are going to go get some wood so we can construct a wooden base to hold the bike wheel and fork as well as the K'nex wheel

• Lengths and distances for belt system

Some pictures of the small wheel with the urethane belt we received:

Top left: the bike wheel that we received from Wolf Cycles with the urethane belt.

Top right: the small Lego wheel with the urethane belt and bike wheel.

Bottom left: close-up of the Lego wheel and the urethane belt.

Thanks again to Wolf Cycles for the bike and fork!

Next:
we need to get a shaft from LeBow 132 Engineering building