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"Brad Hamilton" <bhamilto1@home.com> wrote in message
news:G7spqq.H3E@lugnet.com...
> That's really nice. I've made attempts at train bridges before, but never
> been very successful.
Thanks.
> Out of curiosity, did you copy a real bridge design, or did you design it
> yourself? I'm especially interested in the double-spiral on the one side of
> the bridge.
I'll admit, I did use some reference from a book titled "The Way Things
Work"(I honestly don't know if it's still being published, c1967) or I'd
advise going to a good bookstore or library and check out the architecture
or engineering sections for anything.
That spiral within spiral layout took a while to get right. You'll have to
pull out the graphic calculator for this part but I thought of basing the
ramp plan on
p ( rho) = (b) + (a)(cosine theta) , a > b, AKA Limacion of Pascal (forgive
my French). OK, so I had to "warp it" to make it work but as long as it
does, I'm happy. I try to take more shots for another site to provide more
detailed instruction to those wanting to try and build one.
Adrian
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Message is in Reply To:
22 Messages in This Thread: ![MoC: The Limacion track design is BUILT! -Adrian Egli (26-Jan-01 to lugnet.build, lugnet.general, lugnet.loc.us.ca.sd, lugnet.org.us.baylug, lugnet.trains)](/news/x.gif) ![](/news/246.gif) ![Re: MoC: The Limacion track design is BUILT! -Stephen F. Roberts (26-Jan-01 to lugnet.build, lugnet.general, lugnet.loc.us.ca.sd, lugnet.org.us.baylug, lugnet.trains)](/news/x.gif) ![](/news/46.gif) ![Re: MoC: The Limacion track design is BUILT! -Adrian Egli (26-Jan-01 to lugnet.build, lugnet.general, lugnet.loc.us.ca.sd, lugnet.org.us.baylug, lugnet.trains)](/news/x.gif)
![](/news/x.gif) ![](/news/268.gif) ![Re: The Limacion track design is BUILT! -Cary Clark (26-Jan-01 to lugnet.build)](/news/x.gif) ![](/news/46.gif) ![Re: The Limacion track design is BUILT! -Adrian Egli (26-Jan-01 to lugnet.build)](/news/x.gif)
![](/news/x.gif) ![](/news/268.gif) ![Re: MoC: The Limacion track design is BUILT! -Holger Matthes (26-Jan-01 to lugnet.build, lugnet.general, lugnet.loc.us.ca.sd, lugnet.org.us.baylug, lugnet.trains)](/news/x.gif) ![](/news/46.gif) ![Re: MoC: The Limacion track design is BUILT! -Adrian Egli (26-Jan-01 to lugnet.build, lugnet.general, lugnet.loc.us.ca.sd, lugnet.org.us.baylug, lugnet.trains)](/news/x.gif) ![](/news/46.gif) ![Re: MoC: The Limacion track design is BUILT! -Tim Courtney (27-Jan-01 to lugnet.build, lugnet.general, lugnet.loc.us.ca.sd, lugnet.org.us.baylug, lugnet.trains)](/news/x.gif)
![](/news/x.gif) ![](/news/268.gif) ![Re: The Limacion track design is BUILT! -Brad Hamilton (27-Jan-01 to lugnet.build, lugnet.general, lugnet.loc.us.ca.sd, lugnet.org.us.baylug, lugnet.trains)](/news/x.gif) ![](/news/246.gif) ![You are here](/news/here.gif)
![](/news/x.gif) ![](/news/28.gif) ![](/news/x.gif) ![](/news/68.gif) ![Bridges(Re: The Limacion track design is BUILT!) -Adrian Egli (31-Jan-01 to lugnet.build, lugnet.trains)](/news/x.gif) ![](/news/46.gif) ![Re: Bridges(Re: The Limacion track design is BUILT!) -Daniel Staudt (1-Feb-01 to lugnet.build, lugnet.trains)](/news/x.gif)
![](/news/x.gif) ![](/news/68.gif) ![Re: MoC: The Limacion track design is BUILT! -Remy Evard (28-Jan-01 to lugnet.trains)](/news/x.gif) ![](/news/46.gif) ![Re: MoC: The Limacion track design is BUILT! -James Powell (28-Jan-01 to lugnet.trains)](/news/x.gif) ![](/news/246.gif) ![Re: MoC: The Limacion track design is BUILT! -Christopher Masi (28-Jan-01 to lugnet.trains)](/news/x.gif) ![](/news/46.gif) ![Re: MoC: The Limacion track design is BUILT! -James Powell (28-Jan-01 to lugnet.trains)](/news/x.gif) ![](/news/246.gif) ![Re: MoC: The Limacion track design is BUILT! -Jason J. Railton (29-Jan-01 to lugnet.trains)](/news/x.gif) ![](/news/46.gif) ![Re: MoC: The Limacion track design is BUILT! -James Powell (29-Jan-01 to lugnet.trains)](/news/x.gif) ![](/news/46.gif) ![Re: MoC: The Limacion track design is BUILT! -Jason J. Railton (29-Jan-01 to lugnet.trains)](/news/x.gif) ![](/news/46.gif) ![Re: MoC: The Limacion track design is BUILT! -James Powell (29-Jan-01 to lugnet.trains)](/news/x.gif)
![](/news/x.gif) ![](/news/28.gif) ![](/news/x.gif) ![](/news/x.gif) ![](/news/68.gif) ![Re: MoC: The Limacion track design is BUILT! -Christopher Masi (29-Jan-01 to lugnet.trains)](/news/x.gif)
![](/news/x.gif) ![](/news/x.gif) ![](/news/68.gif) ![Re: MoC: The Limacion track design is BUILT! -Adrian Egli (28-Jan-01 to lugnet.trains)](/news/x.gif)
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