[modeleng] Re: Orrery kits

I'm an avid interferer with machinery, if the earth doesn't rotate then
I'll look at adding extra mechanism to make it rotate, same is true of
the major moons of the gas giants, and it would be a laugh to add Phobos
and Diemos.... If I could get the kit for substantially less then I
would go that way but for an ill octopus a week it looks to be OK......
chrisc

> -----Original Message-----
> From: modeleng-bounce@xxxxxxxxxxxxx
[mailto:modeleng-bounce@xxxxxxxxxxxxx]
> On Behalf Of John Pagett
> Sent: 17 March 2008 21:37
> To: modeleng@xxxxxxxxxxxxx
> Subject: [modeleng] Re: Orrery kits
> 
> Tony,
> 
> It looks better on the website than it does on the TV, I think.
> 
> The only questions I'd have are "does the Earth rotate?" - you can see
> that
> the large gear and pinion are to rotate the moon around the earth, but
the
> earth may be driven on another spindle inside a hollow shaft (like
clock
> hands). Also "how do you set it up?" - the video shows our assembler
> popping
> planets willy nilly onto a shaft, but at some point they need to be
set up
> correctly if you are going to see where the planets were or will be at
a
> particular time. I can imagine those grub screws scoring the central
shaft
> if you're not careful.
> 
> JohnP
> ----- Original Message -----
> From: "Tony Wells" <oaksfield@xxxxxxxxxxxx>
> To: <modeleng@xxxxxxxxxxxxx>
> Sent: Monday, March 17, 2008 8:02 PM
> Subject: [modeleng] Re: Orrery kits
> 
> 
> PS, if you play the video clip from the site I just sent the link for,
you
> that the Orrey is some 18" to 24" by the way.
> 
> Tony.
> 
> 
> ----- Original Message -----
> From: "Jesse Livingston" <fernj1@xxxxxxxxxxx>
> To: <modeleng@xxxxxxxxxxxxx>
> Sent: Monday, March 17, 2008 7:22 PM
> Subject: [modeleng] Re: Orrery kits
> 
> 
> > Gents,
> >
> > Over here in the former colonies an Orrery is a device that
represents
> see
> > that
> > planetary motions about the sun.  Apparently it is something else in
the
> > UK
> > so what is it exactly?  Some style of locomotive or stationary steam
> > engine?
> >
> > Please enlighten this poor uneducated Southerner.
> >
> > Jesse in Troy TN where the sun is shining brightly (for right now,
> anyway)
> >
> > MODEL ENGINEERING DISCUSSION LIST.
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> >
> 
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