[TheForge] Ellipse generator?

[xlch58 at swbell.net]

Here is a site where it animates one:

http://www.ovalgraph.com/how.html

and where you can buy one:

http://www.ovalgraph.com/

Charles

Andrew Vida wrote:

> 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
>
>