Thanks for all the great posts on how to down load images, now another one from the Howdy Doody generation can post a picture (I think)
[img][img][img]http://i770.photobucket.com/albums/xx341/wmikedavis/032.jpg[/img][/img][/img][img][img]http://i770.photobucket.com/albums/xx341/wmikedavis/031.jpg[/img][/img][img][img]http://i770.photobucket.com/albums/xx341/wmikedavis/033.jpg[/img][/img] I made this from a 32 TPI hacksaw blade. Just CA'ed tow halves together. It is very easy to use and is oversized by about 1/128th of and inch, just right for glue.
That is a very good idea for a notcher. Are the blade teeth in opposite directions? Can't tell from the photo. Setting the teeth direction opposite each other may help the notcher from "catching" the edge of the rib or what have you.
The teeth are in the same direction. This also works great if you want to add some stringers. Just set the blade on the formers or ribs draw it back with a little pressure, and you have a nice straight line to cut on.