Subject:
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Re: Large arch bridge geometry - help!
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Newsgroups:
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lugnet.technic
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Date:
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Thu, 4 Jul 2002 03:32:02 GMT
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Reply-To:
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Adrian Egli <adr.egli@worldnet.att.&AvoidSpam&net>
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Viewed:
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627 times
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Pedro,
John's advise is very good. Experiment! Sure, you might make something
that at first you might not like but examine what you've made and ask
yourself "How can I change it?" Then again, you'll make something you'll
love one moment, come up with a better idea, and junk what you once loved
(its happened to me MANY times!)
When I constructed my first suspension bridge from Technic (sorry, no pics
on brickshelf), in West elevation view (seeing its span) it looked OK. But
in North elevation view, I thought it was junk. So I just tinkered around
with small Technic parts like triangles, lever arms, etc., and pulled off my
Trademark Bridge.
http://www.brickshelf.com/cgi-bin/gallery.cgi?f=16101
(Like I said, at first I loved it but now I want to build a better version!)
Geometric triangles (3-4-5, 5-12-13, 7-24-25, 9-40-41, 11-60-61, just to
name a few) only go so far. Apply that LEGO builder instinct of yours and
you'll come out better!
Adrian Egli
SCLTC's bridge builder
"John" <John@TCLTC.org> wrote in message news:GypCvr.MqI@lugnet.com...
> In lugnet.technic, Pedro Silva writes:
> > Hi all,
> >
> > I am attempting to design a large ached bridge with technic parts, and • this
> > means I'll need plenty of reading on the subject of beam-geometry. Can • any
> > of you guys help me out in my research?
>
>
> Pedro-
>
> This may or may not be any help, but when I built my 4' swing bridge
> (http://www.brickshelf.com/cgi-bin/gallery.cgi?f=6920) I had never built a
> technic bridge before. All I did was employ a little trial and error.
>
> So I guess my comment would be that a prior command of beam-geometry isn't
> really necessary-- it *is* possible to figure it out the old fashioned • way-- on
> the fly:-)
>
> Good luck!
>
> -John
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Message has 2 Replies:
 | | Re: Large arch bridge geometry - help!
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| (...) Although this advice will result in getting something built, it's very time consuming, and getting the desired result is difficult. My first large truss bridges: (URL) built by trial and error. It took me quite a bit of time to determine the (...) (22 years ago, 4-Jul-02, to lugnet.technic)
| | | Re: Large arch bridge geometry - help!
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| (...) Like I said in a different message, I can't make large scale experimentation in the present (not enough parts). I must therefore restrict to details, and that is why the theoretical approach is so important to me. (...) That is partially the (...) (22 years ago, 4-Jul-02, to lugnet.technic)
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Message is in Reply To:
| | Re: Large arch bridge geometry - help!
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| (...) Pedro- This may or may not be any help, but when I built my 4' swing bridge ((URL) I had never built a technic bridge before. All I did was employ a little trial and error. So I guess my comment would be that a prior command of beam-geometry (...) (22 years ago, 4-Jul-02, to lugnet.technic)
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