Friday, November 12, 2010

testing router bits...

I have been asked by Fine Woodworking to do a small box to demonstrate the use of the tiny router bits, so I am making a small Greene and Greene styled box with box joint corners. First (after resawing and planing the stock to an appropriate thickness) comes the use of the table saw sled to cut the parts to exacting lengths. This requires two settings of the stop block.
Two settings of the stop block gives material for two boxes.

Next, I use a sled on the table saw with a guide pin to cut the finger joints. as shown in the images below. Now the box parts are ready to test router bits.

This technique of cutting box joints becomes easier with practice. Knowing just how tight to hold the stock against the guidepin helps. If you apply a lot of pressure one time, but simply just touch lightly the next, the distance between cuts can be distorted leading to a poor fit between parts. Practice, practice, and practice.

Use a  5/16 in. box joint blade and 5/16 in. drill bit as guide pin.

Trial fitted finger joints... a tight, but near perfect fit.


Anonymous said...

I'm sort of confused, the title is testing router bits, yet you're using a table saw. Am I missing something?

Nice boxes BTW

Dave F.

Doug Stowe said...

Dave, you've got to test them on something. The bits and test box and finished review are in Fine Woodworking number 218, April 2011

Jack said...

I bought Dewalt DW175 miter saw two months ago. I have problem with cutting board 90 degree. Do you think I use table miter saw improve cutting boar? I want to d├ęcor crib for my daughter

Doug Stowe said...

90 degrees which way, up or across? I believe your problem may be in how your saw is set up. You will need to test it and possibly adjust it to make certain it cuts square. Check out your owner's manual that came with the saw.