Category Archives: Engineering Challenge

Design Challenge 2 – Prepper Market

The second design competition happened near Homecoming Weekend. Our challenge is building product for preppers. We had about a week to come up with an idea and build prototype for it, then have a pitch in front of Bucknell Engineering Alumni Association to present our product.
So, my ideas is a light (LED) powered by water. It is the combination of a joule thief and galvanic cell.
I spent the whole week for this project. During my time working, I meet and make friend with many awesome professors such as Prof Siegel and Prof Kennedy. They complimented my ideas. On that week, I literally meet Matt Lamparter- head of Electrical Engineer Labs every day for materials.
I encountered a lot of problems while working on the project. My first problem is that the joule thief didn’t work, which takes me a lot of time to troubleshoot it. Second, when I plugged it in water, the LED didn’t light up because water only generate 0.8V while the circuit need 1.5V. I realized that water baterries should be connected in series but it was too late. So in my presentation, I plugged it in orange juice instead.
Our team got second place in the second design competition.

Design Challenge – Trebuchet

This design challenge happened on the Friday before Family Weekend. Our challenge was to build a human powered trebuchet to throw a glow-in-the dark golf ball as far as possible. Before the challenge, I did come up with a design. After presenting it to my team, our team decided that we were going to implement my idea.

However, we encountered many problems during implementation process. We kept changing ideas. We had trouble connecting pieces of our trebuchet together. Two hours passed without anything done.
After we found the nail gun, the situation changed. We work very effective in the last one hour and we managed to finish our trebuchet on time.
We launched our trebuchet, but it did not worked so well. Nonetheless, we had good time that night finish our first trebuchet ever.