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When will someone make an instructable on how to make a good floating arm trebuchet? Answered

Floating arm trebuchet's are such a happy alternative to the run-of-the-mill trebuchet. Construction is not much more complicated, and results are so much better!

I just can't find any plans anywhere on the internet or at book stores.

Who will be the first to make a great instructable on it? I was thinking 4' or 5' would be a good size to start off with.

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frankenboom (author)2010-10-25

In about a month and a half i hope to have an instructable ready. What I'm building is technically an F2K, even though it doesn't really matter. The trebuchet was for a school project, and i was testing the optimal beam ratio. The arm is 7 ft, and the highest point is 8 feet (the top of the channels) so it's a bit bigger than the one here. I'm actually still not finished, so we'll see how it ends up. My dad is not convinced that it'll work well. I hope it does.

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frankenboom (author)frankenboom2010-11-24

ok mebbe a bit more than a month...
first good throw was about 210 feet, 3.5:1 beam ratio, 7 ft arm, 40 lbs cw. The trajectory was way too steep, though. And I think the sling length is wrong. After a few small tweaks im hoping for about 350 feet. Even though thats still a bit lame for something taller than 8 feet...

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frankenboom (author)frankenboom2010-12-19

Ok, for anyone who still is looking at this question, the instructable is mostly finished and has been submitted. It's in two contests, so vote if you like it!
I will copy and paste the rough procedures (From my science report) into the instructable by 1:00 tomorrow, then polish it up and add pictures by the end of Tuesday. Now that I'm out of school I have time to actually work on the instructable more.

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frankenboom (author)frankenboom2010-12-20

Ok my instructable is finally up. Almost finished, but just about everything is there. It would also mean a lot to me if you take about 5 seconds to go here and vote for my project: https://www.instructables.com/id/Floating-Arm-Trebuchet-F2K/
It will be completely done by the end of tomorrow, Tuesday.
You guys were looking for floating arm trebuchet plans, and you found them.

Now go vote!
thank you so much
https://www.instructables.com/id/Floating-Arm-Trebuchet-F2K/

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frankenboom (author)frankenboom2010-12-20

A couple of pictures...
Ya, I know I'm getting too overenthusiastic

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NachoMahma (author)2010-10-12

. We're all waiting for you to do it. Get busy!

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Burf (author)2010-10-12

I found an illustrated guide to building a FAT  in just a couple of minutes. This one is a nice desktop treb, made with mostly popsicle sticks. It would be a simple matter to scale it to whatever size you wish.

http://andypsionfan.users.btopenworld.com/treb02guide/trebuchet02guide.html

If you build one, make an instructable for us to peruse.

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Jayefuu (author)Burf2010-10-12

Exactly the one I found. I just wasn't kind enough to post the link.

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Jayefuu (author)2010-10-12

I found plans on google... it took all of 10 seconds.

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