1. Created by: Logan Howell, Thong Luong, and Gonzalo Summariva
Bawlin’
Created by: Logan Howell, Thong Luong, and Gonzalo Summariva

2. The Design Marble rolls down PVC Strikes loaded mouse trap
Mouse trap pulls string, causing spool with protrusion to turn
Protrusion strikes hook, which is attached to counter weight
Counter weight slides down string, causing mass to lift

3. Summary of Stored Energy
Energy of ball rolling down PVC: mgh=.003kg X .762m X 9.81=.0224 J
Energy stored in mouse trap: 1/2kx2=.5 X 45.1N/m X .179m X .179m=.723 J
Energy stored in 5 lb. weight: mgh=2.27kg X 9.81 X .75m=16.7J

4. Construction Issues Duct Tape is not always the answer
Mouse traps are fun, but painful
Krazy glue works wonders
Support was an issue, but easily solved
Marbles are easily lost

5. Conclusions
This project was an interesting application of simple engineering principles
It can be hard to work around each other’s schedules, but it can be done
It was better than most of the homework