[TheForge] Ellipse generator?

[Rick Crawford]

Hello all -

        My old Sheet Metal Workers Pocket Manual shows a way to get there, 
and then you know how the centers were found.  I could not get to the 
photoaccess site today, so I put it on my site as a jpg.  (I drew it up in 
AutoCAD and printed it to a jpg.)

        You can go here to see it  http://www.smokyforge.com/Ellipse.jpg

Hope this helps someone,
Rick Crawford at Rafter Lazy C




--- Original Message ----- 
From: <debmiller at fuse.net>
To: "Sponsored by ABANA" <theforge at mailman.qth.net>
Sent: Friday, December 17, 2004 6:10 AM
Subject: Re: RE: [TheForge] Ellipse generator?


>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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>
> _______________________________________________
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