[TheForge] Ellipse generator?

[Rick Crawford]

That is correct - it is a 4 arc approximate ellipse.  I didn't think about 
that when I posted it as it has always been good enough for anything I had 
to do.

Rick Crawford at the Rafter Lazy C


----- Original Message ----- 
From: "Andrew Vida" <osan at netlabs.net>
To: "Sponsored by ABANA" <theforge at mailman.qth.net>
Sent: Friday, December 17, 2004 12:28 PM
Subject: Re: [TheForge] Ellipse generator?


> 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.
>>>>
>>>> _______________________________________________
>>>> 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
>>>> ___________
>>>>
>>>>
>>>> _______________________________________________
>>>> 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
>>>> ___________
>>>>
>>>>
>>>>
>>>
>>> _______________________________________________
>>> 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
>>> ___________
>>>
>>>
>>>
>>
>> _______________________________________________
>> 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
>> ___________
>>
>>
>>
>>
>
>
> -- 
> No virus found in this outgoing message.
> Checked by AVG Anti-Virus.
> Version: 7.0.296 / Virus Database: 265.5.4 - Release Date: 12/15/2004
>
> _______________________________________________
> 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
> ___________
>
>
>