Outside Resource - For our outside resource, we used a youtuber's channel. https://www.youtube.com/user/ldvance01

This channel contains multiple videos of the "MURLIN" Trebuchet which is the design we used. The videos provided us with information on what materials to use, what angle to launch at, what proportions we should use for the arm, and what the finished, working Trebuchet would look like. The most helpful video was the video of the dynamically tuned MURLIN. http://www.youtube.com/watch?v=K7mB5iftarQ&list=UUWP9Dxy_-d9hYArlASQDA8w&index=11. This video helped the most because it covered the most information and was very detailed. Without Leonard and his videos, we would not have even known about the MURLIN Trebuchet which is why we are using him as our outside resource.

Week Five - For this entire week, we have spent our time working on our Capa math problems, disassembling our Trebuchet, and finishing any other pieces of the project that needed to be done.

Week Four, Day One - Today, Alex went out to get our metal bar. This is what the arm of our Trebuchet would rest on, in order for it to function. Brandon and myself stayed back and worked on the arm of the Trebuchet as well as start working on the brackets, from the top of our arms, where we will have a pvc pipe acting as a pulley mechanism. 

Week Four, Day Two - Today we assembled all of the other things we needed for the Trebuchet to work. We braided our own rope in order for the entire thing to work. We also made a sling for the tennis ball to sit when we launch it. We also added our safety mechanism, which was a pin for the release. We also constructed our weight box, which is the key to to projectile motion. We put one weight consisting of 1000 grams. With this weight it launched exactly 10 yards. Then with two of those weights it launched 20 yards. Last, we added a one 12 inch, by 16 inch piece of wood right under the weight bucket. 

Week Four, Day Three - Today was the day, the moment of truth. Today we tested our initial question on whether or not we could be the dominant Trebuchet in our little war. The truth is we all failed. All of the trebuchets and catapults worked fine, it was just a matter of execution that every team lacked.

Week Four, Day Four - Today we started on our CAPA math assignments, as well as, finish any other pieces of the project we needed to do.

Week Three, Day One  - Today we worked on the amr for our trebuchet. This is our recovery from a failure. Our first arm failed. We are redeisgning our arm to the dimenisons of the trebuchet. This will allow the arm to be fully recoiled and rotate before the weight hits the ground. We need our trebuchet arm to be under 60 inches when adding up all the arm lengths branching off from the main arm. 

Week Three, Day Two - Today we went out for our supplies. We pruchased 32 ft. of 2 by 4s for this project. After getting back to school, we started constructing our 48 by 18 base for the trebuchet.

Week Three, Day Three - Today we cut the arms to length and angles we needed, we then drilled the arms to the frame of the trebuchet. We did not drill the arms together though yet. We also, connect two 4 by 1 foot peices of wood under the base, to add extra support for our trebuchet.

Week Three, Day Four - Today we started construction on our arm for our trebuchet, as well as, finish drilling all the pieces of the trebuchet together. Today was when the whole thing really took it’s shape and we could see where we are going with the project.

Murlin Trebuchet

Week Two, Day One - Today we finally pieced our arm together for our model Trebuchet. We ran into a large problem though. We realized that our arm was too large for our model. Our model needed to be taller, in order to have more height of the arm to rotate to its full potential. We are discussing and trying to figure out how we can make our model work for going forward.

Week Two, Day Two - Today was the day when we realized that after many attempts at trying to fix our model that it would not work. Our model was a failure. We believed that we had worked out enough kinks in our model to start the real project. So we decided to scrap our model.

Week Two, Day Three - Today we deconstructed our model and scrapped the pieces that we had left. For the end of the class we worked on getting the dimensions and blue prints for our full size Trebuchet. 

Week Two, Day Four - Today we successfully constructed our own dimensions on our Trebuchet. We decided that our main arm should be 68 inches long that intersects our support arm at an 80 degree angle. The support arm is 42 inches long. Our base's dimensions are 48 inches in length and 18 inches wide.