Quote Originally Posted by Warren Mickley View Post
If my dividers were .001 off, then after seven repetitions, going around the turning, it would be .007 off, something I could easily see. Reminds me of the time I marked off 1/32 on a board with a marking gauge, then counted shavings until I got down to the gauge line. Maybe more accurate than trying to measure a very thin shaving with a micrometer. They used to teach this stuff in school.
I think Warren is right here. I'm about as "numbers-obsessed" as they come, and I wouldn't try to do this any way but the one Warren suggested.