Subject:
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Re: Lego orrery (mechanical solar system)
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Newsgroups:
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lugnet.technic
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Date:
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Wed, 30 Apr 2003 06:27:18 GMT
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Viewed:
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2323 times
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"Thomas Johnson" <aklego@mac.com> wrote in message news:HE4DMA.1Eqy@lugnet.com...
> In lugnet.technic, Paul Kleniewski writes:
> > groovy
> > good job
> >
> > i like the earth
> >
> > maybe you could try to use one of the lego clock hands mechanisms
> > you know the coaxial mechanism
> > to hide the moon gearing under the earth globe
> >
> > sorry I'm advicing but that is because your moc inspires me much
>
>
> Apologies are not necessary--I agree that the moon mechanism is unsightly
> and I am looking for
> ways to clean it up for the nine planet version. Unfortunately (for orrery
> makers) the moon's orbit
> and earth's axis of rotation are not coaxial.
>
> That said, here is an orrery made by Don Rogerson that uses that a
> differential housing for a
> coaxial mechanism:
>
> http://www.donrogerson.com/bricks/orrery.html
>
> His geartrain is amazingly correct.
>
> Another orrery about which I have no information can be found here:
>
> http://www.brickshelf.com/cgi-bin/gallery.cgi?f=5670
now i'm sure i should apologize!!!
cause i said something without any knowledge about the current state of
the orrery
i missed that the moon's orbit's not coaxial with the earth's one
but as i said your moc's very inspiring
so i'll think about that
if something will appear on my mind
i'll let the .technic know :)
> With my nine planet version, I'm trying to find the right balance between
> clarity and "correctness".
> "Correctness" includes such things as elliptical orbits, proper periods,
> multiple moons for Jupiter,
> Pluto's out-of-plane orbit , etc. The list is endless and it is just a
> matter of drawing the line.
it will be huge i suppose
i can't wait
pixel
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Message is in Reply To:
 | | Re: Lego orrery (mechanical solar system)
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| (...) Apologies are not necessary--I agree that the moon mechanism is unsightly and I am looking for ways to clean it up for the nine planet version. Unfortunately (for orrery makers) the moon's orbit and earth's axis of rotation are not coaxial. (...) (22 years ago, 29-Apr-03, to lugnet.technic)
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