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Subject: 
 Re: Trebuchets
Newsgroups: 
 lugnet.castle
Date: 
 Sat, 17 May 2003 04:54:59 GMT
Viewed: 
 703 times
  
Hey Brian,

Very nice trebuchet!  I saw that show too and loved it.  You can buy copies
of it off of their website.  Anyway, your rendition is very cool.  I am
thinking of building one too after all this talk about them.  But now I will
be a copycat! :)  How far does it throw that soccer ball?  I built a wooden
trebuchet out of 2x4s right after I watched that show (and read about in the
Smithsonian).  But I couldn't get the weights right.  Oh well, I will have
to try again this summer.

Josh

In lugnet.castle, Brian H. Nielsen writes:
> In lugnet.castle, Benjamin Ellermann writes:
> > In the US we have a public television program called Nova.
> > They had a cool show on trebuchets.  Check out details here:
> > 
> > http://www.pbs.org/wgbh/nova/lostempires/trebuchet/builds.html
> 
> 
>   I saw that show and have just completed a trebuchet based on one of the
> designs in it.  Here are some images of it:
> 
>   Winching down the arm:
>      http://www.brickshelf.com/cgi-bin/gallery.cgi?i=403138
> 
>   Setting the release trigger:
>      http://www.brickshelf.com/cgi-bin/gallery.cgi?i=403139
> 
>   Loading the sling:
>      http://www.brickshelf.com/cgi-bin/gallery.cgi?i=403141
> 
>   Ready to fire:
>      http://www.brickshelf.com/cgi-bin/gallery.cgi?i=403143
> 
> 
>   The folder after moderation:
>      http://www.brickshelf.com/cgi-bin/gallery.cgi?f=43644
> 
> 
>   A weighted brick is used as the counter-weight, but I think I may rebuild
> the trebuchet a little larger and use 2 weighted bricks side-by-side.
> 
>   I like my simple release trigger mechanism and how I kept the beams of
> the A-frames inline rather than overlapped.
> 
> Brian



Message has 2 Replies:
  Re: Trebuchets
 
I've only gotten it to throw a few feet with the soccer ball. The mini-figs can spit farther! An area that needs serious attention is the sling pocket. The piece of plastic that I'm using now is too slippery and a soccer ball has trouble staying in (...) (21 years ago, 17-May-03, to lugnet.castle)
  Re: Trebuchets
 
As I mentioned I wanted to do in my other post, I've changed to a braided sling pocket and it made a big difference, both in ease of setup and distance. It now throws about 6 feet. Time to see what sling length and end hook gives the best (...) (21 years ago, 18-May-03, to lugnet.castle)

Message is in Reply To:
  Re: Trebuchets
 
(...) designs in it. Here are some images of it: Winching down the arm: (URL) Setting the release trigger: (URL) Loading the sling: (URL) Ready to fire: (URL) The folder after moderation: (URL) A weighted brick is used as the counter-weight, but I (...) (21 years ago, 17-May-03, to lugnet.castle)  

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