Quote Originally Posted by Jim Koepke View Post
Tom, Here is a post of mine > https://sawmillcreek.org/showthread.php?272588 < it includes using different methods of checking different pieces for flat.

Winding sticks by necessity are straight edges. Another way to make a straight edge as long as you want is to use a tightly strung piece of string. This method is also used in the link above. The project is still ongoing. Due to many other things my time on it has been restricted. Hopefully it will be finished this year.

Here is a post on making straight edges and winding sticks > https://sawmillcreek.org/showthread.php?290331

Amazingly, making a straight edge for yourself will give you insight in how to produce a straight edge or a flat surface. It is kind of practice, training and accomplishment all in one.

Good luck with your endeavors,

jtk
Thanks a lot. Very interesting. I cannot seem to view any of the photos and get a permissions error when I click on them. Is there something that I need to do to enable picture viewing?