Where we saw wood splitting, we handmade braces out of metal to release some of the stress. Launch 3 - New squirrel launcher design.the heights and distances with this setup are amazing Each and every squirrel lands safely and runs off chattering.no. We used a rectangle pin because it only has two points of contact. The pin's angle is an essential piece to your trebuchet. It got annoying after a while, which is why you see me chasing the squirrels away in the video. I would wake up in the morning, several times, and there would be two squirrels stuffed inside the catapult waiting. ![]() Mount the last Eye Hook on the arm between the two you added to the frame. Beyond that after we had flung them they would literally run back up and into the catapult. Mount 2 Eye Hooks to the center of the frame where the arm falls. With the chute, we diverted from the original blueprints due to time constraints and were happy with the end result as it allowed our arm to have more clearance on the wights we added, which in turn gave us more flexibility on our trebuhcet. but then made a few modifications to make it better. We also found adding grommets to the holes where our rope was tied to the sling, since the force tends to tear through it rather easily. We also recommend using 550 paracord since it has the best fitting characteristics to our project. We highly recommend this structural support.įor the sling we used a canvas bag material. We added support trusses where the support beams meet the 50'' bars to add even more support. After that we used both SolidWorks and a Virtual Trebuchet Simulator to test. It is easier to chase squirrels away from your backyard rather than from the attic or any other space indoors, where rodents usually nest. We suggest that you should take the following steps: 1. With the brace's height's only limitation was our mitre saw's angle of 50º, we put brackets in the corners and we had a trebuchet frame.įor our design we used SolidWorks to build it virtually. Well, first off, make up a plan of action so that your pest control strategy is consistent and effective. The frame was built around that, we gave the length 2 6' 2x4's and the width 2 28" 2x4's. With a pivot height of 48" to the dot, we then put together an 8' arm with the pivot point placed in the spot we felt was the best after some math. Then we took into account the limitations the rules gave us and pushed everything to the limit. (It will be given references, before we turn it in.) Then the delving began, after much research, we finally found the information we needed to have the perfect trebuchet. We compared the abilities and mechanics of trebuchets to catapults at first, and we were convinced trebuchets were the way to go. ![]() From the beginning we had wanted to build a trebuchet, so that was the primary objective here. It was a very intense time, since we had so little of it. This helps you aim the cotton ball forward.When we were first assigned this project we had to go through so many options and learn about so many new mechanics. ![]() Pushing your six sticks the other direction creates a greater angle between the launching stick and the base. This results in a cotton ball aimed more upward than forward. Moving the stack of six sticks closer to the launching cup makes the launching stick lie flatter. Place your 18 2×4 at a right angle to the 36 piece at 15 from the end of the 36 piece. In the case of your catapult, the cotton ball probably flew higher and farther. Form the base by positioning the 36 2×4 flat wood in an elongated manner on your workbench or on any stable surface. Bending farther means more energy gets stored in the stick, and when you let go, all this stored energy is converted into energy of motion, so the cotton ball flies through the air at a higher speed. Maybe you felt you needed to exert more force or work harder to bend the stick farther. Pushing the stick down farther takes more effort from you. Most of this energy transfers to the cotton ball, which shoots through the air. When you let go, this energy is released and converted to energy of motion. When you bend your stick, you load your launching stick up with energy. Do you get similar results each time? Is what you observe what you expected? Can you explain why?ĭid you see your cotton ball fly higher and farther when you pushed you launching stick farther down?
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