Weird calipers. By Uri Tuchman. 20:51 video:
https://www.youtube.com/watch?v=qxL72JjhDlU
Previously:
https://www.homemadetools.net/forum/...455#post162181
https://www.homemadetools.net/forum/...217#post161313
https://www.homemadetools.net/forum/...408#post158386
https://www.homemadetools.net/forum/...689#post143603
https://www.homemadetools.net/forum/...692#post147827
https://www.homemadetools.net/forum/...437#post146850