[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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