[TheForge] Ellipse generator?

[Dave Mudge]

look here:
http://magichammer.freeservers.com/Ellipse/Untitled-1.htm 

dave mudge
dave at magichammer.net 
http://www.magichammer.net 
http://www.metalsmithinghowto.com 
 
>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