I need draw tools for parabolic and hyperbolic curves. These are usually
created with plywood, and are marked up with dimensional numbers,
distances, pivot points and the like.

Are there any amongst us who are familiar with such things? Maybe how to
make the tools, or know where to go to read about how to make the tools,
or know where there are pictures and examples.

Please reply off list.

Thanks,

John Rodgers
88 GL Driver