I bought a Freud finger joint router bit today, thought it would be easy to figure out how to use the bit, WRONG.
Cutting the first piece didn't seem to be too tough but trying to set up the minor for the joining piece was not easy or accurate to say the least.
The minor dimension from Freud web site was 21/64 or .328 inches so I tried to lower the router bit by .328 inches but that was not easy. I have a new Bosh router and router table but the thumb screw height adjustment is anything but good or accurate, jumps all over the place.
Short of buying a surface gauge to set the mirror height, does someone know of an easier way of setting up the first and second piece that I am overlooking? like some gauge blocks, or a youtube video or DVD?
Update: I got out my vernier calipers and made some measurements on the Freud 99-037 finger joint bit. On their spec. sheet they call the minor dimension as 21/64 or .328" and they show it as the adjacent peak to peak (pitch) dimension. Well that is incorrect, it is half of that, the pitch is actually .1620". So I have ordered a height gauge so that when I have finished my first piece of material I can lower the router by half the minor (pitch) dimension or .082" and run my second piece of material at the new setting. This will align the peaks to valleys between the two pieces of material.
Application: Joining wood edge-to-edge or end-to-end
• Produces a joint that is stronger than the wood itself.
• Tips on each side of the bit are offset, cutting twice as
many fingers as you see tips on each side of the bit.
• Cuts all composition materials, plywoods, hardwoods,
• Use on CNC and other automatic routers as well as
table-mounted portable router.