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Getting Medieval #1: Trebuchet!

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Blog entry by ThreeJs posted 12-02-2007 10:16 PM 2748 reads 0 times favorited 4 comments Add to Favorites Watch
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This is a repeat from the project I listed previously, but I thought I would take this time to start a series, since I plan on making other siege weapons.

This project is close to 4 years old. I made it with the scrap oak, I had left from the little table I posted a project about last week. It is a fun little trebuchet, put together with pegs, and the throwing arm on a threaded rod. The picture below shows it with a 2.5lbs weight, but at times I have had up to 7.5lbs on it. With 21” (15.25” above the fulcrum) it will throw a bouncy ball about 50’ on a slight uphill. (Never fired it on level ground.) The ball will usually continue to travel to the end of the street, or 3 more houses down.

We have used this at cub scouts, to wing 1” bean bags, with the scouts awards in them, at a castle. But only with the current weight. THe guy whose idea it was to try it, test fired it with the 7.5lbs, and sailed a beanbag all the way across the church santuary. :D

I think my oldest son and I will start a new one tomorrow. Maybe a catapult this time, or an onager. Anyway, I know a couple people asked for plans of the trebuchet that was posted last week, so I decided to make a sketch-up drawing of mine. If you would like a copy of the sketch-up file, I will be happy to pass it on. Just drop me a note.

Trebuchet

I added the model to google sketchup warehouse and found many others out there too!

I restrung the swing arm, and put a new pouch on it. The boys removed the old one. The firing mechanism is a rope over arm (string over in this case), with a nail as the sear. (very high tech)

Here is the pin that hold / releases the string

Here is the pouch that hold bean bags, and bouncy balls.

Next project….. The desktop Onager!

If I get a good video of it shooting, I will be happy to post it. I have already drawn it in sketch-up. Now just to construct it.

-- David, Charlotte NC (http://beechcreeknaturals.etsy.com)



4 comments so far

View Todd A. Clippinger's profile

Todd A. Clippinger

8790 posts in 2766 days


#1 posted 12-02-2007 10:32 PM

This looks like a fun project!

-- Todd A. Clippinger, Montana, http://americancraftsmanworkshop.com

View ChicoWoodnut's profile

ChicoWoodnut

904 posts in 2482 days


#2 posted 03-23-2008 12:11 AM

Hey David,

I just stumbled accross this. Way cool treb! Check this one out. My son and I built it for his Jr. High “Medieval Days”. He is 23 now so that makes it about 8 years ago. Click on the thumbnails to see bigger pics.

-- Scott - Chico California http://chicowoodnut.home.comcast.net

View GaryK's profile

GaryK

10262 posts in 2654 days


#3 posted 03-23-2008 07:43 AM

I want a monster one!

-- Gary - Never pass up the opportunity to make a mistake look like you planned it that way - Tyler, TX

View rikkor's profile

rikkor

11295 posts in 2541 days


#4 posted 03-23-2008 12:01 PM

Fun project.

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