Re: Re: Locating already drilled holes

dave,

I started my post planning to use this 3 point method, then realized
the other way(I did post) might be easier. Meant to include the fact
"3 points define a circle" but it was as they say,"left on the
cutting room floor". Thanks for bringing it up.

I haven't heard of this book before! Is it good? Where did you find
it?

Ballendo (always learnin')

>So, with a probe, edge finder, etc. define three points on the
>radius and then calculate the center.
>Math is well defined on starting on pg. 190 of Zied's "CAD/CAM:
>Theory and Practice" ISBN 0-07-072857-7