Gravity Vehicle (Science Olympiad 2013)

This is a proof of concept for a geared braking system on the 'gravity vehicle' for 2013 division C Science Olympiad Competition. This is / can be made fully rules compliant, with the 2013 rules, with very little modification.

Note: This design has never been tested in competition and has no guarantee of performance.

Instructions

Parts Needed:

4x Stepping Gear

4x Tire

4x Large Gear

1x Cart

1x Locking Gear

1x Small Gear

Hardware:

~ 2ft of #8-32 Threaded Rod

34x #8-32 Nuts

Build Instructions on Google Docs: https://docs.google.com/document/d/1bS17O6ylzlOpzDA864U4AZY9Ea44BcbdGmAzBjTluz0/edit?usp=sharing