This layout tool was invented by Al Borneman. When he made the first one, he gave/showed it to Jack Sobon. It had only two or three slots for drawing lines at different distances off the layout edge. It worked but it wasn't very long and it needed more slots for further distances away from the layout edge. So this smaller layout tool was replaced with a larger one, and as Al invented it, the short name became the "Big Al"....

For understand how to use this layout tool, I wrote a "how to story" at http://www.forestryforum.com/board/index.php?topic=6403.0
with photos. You'll have to scroll down past "tool list" the basic stuff to find the picture and story about using the Big Al....

Jim Rogers


Whatever you do, have fun doing it!