Sail corner.
https://s3-us-west-1.amazonaws.com/h...ail_corner.jpg
Previously:
https://www.homemadetools.net/forum/...768#post102413
https://www.homemadetools.net/forum/...739#post143805
https://www.homemadetools.net/forum/...372#post142465
https://www.homemadetools.net/forum/...893#post137387
https://www.homemadetools.net/forum/...620#post136373
https://www.homemadetools.net/forum/...209#post126407