Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

My regular HSS scroll saw blades are good for about a foot of pcb then
they're toast. However, that's putting all the wear on only a few teeth.

If you use a fence, the piece between the blade and the fence should be
at least twice as long (parallel with the fence) as it is wide (between
blade and fence) to reduce the risk of kickback. If it's not long
enough, or too wide, use a miter or sled instead. I suspect for most
pcb projects, a sled would be appropriate.