Nova wrote:

John McCoy wrote:

Of course, that's only as accurate as the straightness of the edge
of the "straight" board you're using. You may be measuring the
curve of the edge of the board (times 2, of course). Which then
begs the question "how do I test an edge for straightness" :-)

John

With a Starrett straight edge.

For the real hardco
http://www.tdl.com/~swensen/machines...ight_edge.html