Monday, November 14, 2011
More trebuchet workingness
As the second quarter began, we also began by working on our sling. What we did was took some tarp and folded it over a couple of times, duct taping the edges together. After that, we placed cardboard in a manner that would make the sling stiffer, making it more able to support the projectile. We left the center of the sling free of cardboard to keep the projectile in place until release. After all of the cardboard was neatly duct taped into place, we folded the tarp in half once more and used our favorite adhesive to keep the two ends closed. Currently, we are working on putting wheels on the bottom and going mobile!
Friday, October 21, 2011
Reflective journal post
In the past quarter, a group of students and I have worked on a life size trebuchet. At first, we started by building a small scale prototype. We took the many factors, such as weight or the projectile and counterweight and length of the wood used in the large scale model. About two weeks into constructing the prototype, we redesigned it with a larger boom and more stable counterweight holder. I won't lie, things started off rath shaky. It took a few weeks for the small scale model's additions to work properly, as the counterweight holder would often fall apart and the sling was flimsy and needed rethinking. After roughly one and a half weeks, we were able to make out small scale model function properly. The next big step was to get the materials for the actual trebuchet. When we ordered our wood and screws and got the tools from the wood shop, we immediately began our work. Currently, we have the boom completed and are working on the base. So far, so good.
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