[TheForge] Ellipse generator?

[debmiller at fuse.net]

I haven't had the need recently, but as I recall it was a matter of two pins, a string loop with a pencil, and you rotate the pencil on the string leash around the two pins resulting in an ellipse.

I'll have to dig out my old geometry notes.

Ray
Cincinnati 
> 
> From: Andrew Vida <osan at netlabs.net>
> Date: 2004/12/16 Thu PM 12:14:32 EST
> To: Sponsored by ABANA <theforge at mailman.qth.net>
> Subject: [TheForge] Ellipse generator?
> 
> Folks,
> 
> It's driving me nuts.  I cannot, for the life of me, remember how to put 
> together a mechanical ellipse generator.  They are very simple devices 
> but my brain just refuses to give it up.  Last one I saw was at some 
> smithing event several years ago.  For some reason I recall that Bob 
> Bergman donated it to an Iron in the Hat, but I may be wrong.
> 
> Anyone have any links or images?  Web search produced nothing that I 
> could find.
> 
> Thanks,
> 
> 	-Andy
> 
> 
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