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.
1510472_387521141417018_8419034964400656901_n
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.
10350507_387521148083684_7308492350754159723_n
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.
10390896_387521144750351_7467368419698486955_n
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.

10547871_814920768545980_8226396038618198254_o
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.
10679766_814921775212546_5085084458277565514_o
10704278_814921788545878_4705015475734336364_o
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.
1072408_814922251879165_3328822859235798986_o
We launched our trebuchet, but it did not worked so well. Nonetheless, we had good time that night finish our first trebuchet ever.
10301295_469629709846950_2873396620868421864_n