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Manganel. I tried building one out of lego, using the bungee from the
8205 Bungee Blaster, but it didn't work very well. It might have worked
better if i'd had a sling instead of just a cup, but that would have
taken more time/energy than i was willing to expend then.
Iain Hendry wrote:
>
> I think it was the most fun I've had with LEGO in ages! We had the most
> difficulty with the sling (whatever it's called) - geting it to release. If
> you go through the video frame by frame and watch the release carefully you
> can see how it naturally comes off the pin on the arm because the motion
> changes from the string pulling back to swinging up over the top (hard to
> explain...).
>
> While we were doing it I guess I expected the projectiles to go further, but
> if you think about it, its actually kind of awesome that such a small
> machine can throw out that much energy to lob the thing 5 or 6 metres.
> These guys on trebuchet.com are making machines that throw hundreds of
> metres though. :)
>
> It would be fun to have the contest open to any kind of potential to kinetic
> machine - IE, those M... M... m-something machines, the ones that are like
> wound up and can fire stuff. You know, find the most efficient storage
> method of energy and build a launching device out of it. I'm thinking
> metalic grape shroud (MGS) with linear synchronous motor driven by a
> flywheel/gen bank.
>
> ;)
>
> Iain
>
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Message is in Reply To:
 | | Re: Trebuchet Fun
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| (...) I think it was the most fun I've had with LEGO in ages! We had the most difficulty with the sling (whatever it's called) - geting it to release. If you go through the video frame by frame and watch the release carefully you can see how it (...) (22 years ago, 28-Aug-02, to lugnet.org.ca.rtltoronto)
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