Details for Another desktop trebuchet experiment Plans


Another desktop trebuchet experiment Plans

Date added:2011-09-08
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Another desktop trebuchet experiment plansFree Another desktop trebuchet experiment plans - Here is the second project, a floating arm straight drop trebuchet. I started design and build after seeing pictures of a real machine that would throw 12lb balls 300 feet, just from a 470lb counterweight. The tip of the arm stands about 9" above the floor. It's currently got about 9 1/2 ounces or 270 grams counterweight, and throws a wooden bead about an inch in diameter some 20 feet. It's not been tuned yet, so I'm expecting to improve the range. The wheels are made of brass, and replaced a set of wooden test wheels that were really just discs mounted on a flanged bearing. The brass seems to have quite an effect on the range, so I'd like to investigate plastic wheels. The sling in the photos below could be a lot better, but it's the first sling I made for the machine. The current sling has a much better pouch, but has only made the machine better at throwing lighter projectiles.

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