[TheForge] Ellipse generator?

[debmiller at fuse.net]

I believe there is a formula for setting the distance between the locii, or central points, but I haven't found it. I would fall back to the good old trial and error method, I guess unless someone has the real math available.

Ray
Cincinnati
> 
> From: "Dave Mudge" <dave at magichammer.net>
> Date: 2004/12/16 Thu PM 07:00:38 EST
> To: "'Sponsored by ABANA'" <theforge at mailman.qth.net>
> Subject: RE: [TheForge] Ellipse generator?
> 
> But what if you want a 6" x 12" ellipse?
> Where do you put the pins?
> 
> dave mudge
> dave at magichammer.net
> http://www.magichammer.net
> http://www.metalsmithinghowto.com
>  
> 
> -----Original Message-----
> From: theforge-bounces at mailman.qth.net
> [mailto:theforge-bounces at mailman.qth.net] On Behalf Of Gladish Family
> Sent: Thursday, December 16, 2004 12:38 PM
> To: Sponsored by ABANA
> Subject: RE: [TheForge] Ellipse generator?
> 
> > It's driving me nuts.  I cannot, for the life of me, remember how to put
> > together a mechanical ellipse generator.
> 
> In grade school we used to put two pins in a board, put a loose loop of
> string around them, and stick a #2 pencil in the loop to make: Voila! an
> ellipse.
> 
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