[TheForge] Ellipse generator?

[Andrew Vida]

That looks like an approximate ellipse.

Rick Crawford wrote:
> 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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>>>
>>
>> _______________________________________________
>> Manage membership or unsubscribe at:
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>> theforge mail list group photo site is
>> http://www.photoaccess.com
>> Login:  blacksmithblacksmith at hotmail.com
>> password:  anvil
>> ___________
>>
>>
>>
> 
> _______________________________________________
> Manage membership or unsubscribe at:
> http://mailman.qth.net/mailman/listinfo/theforge
> theforge mail list group photo site is
> http://www.photoaccess.com
> Login:  blacksmithblacksmith at hotmail.com
> password:  anvil
> ___________
> 
> 
> 
> 


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