How to set the fence on a router table

by Keith
(Bonner Springs, Kansas)

image of setup block

image of setup block

I am making a tool box out of 1/2 inch walnut and the plans call for a 3/16 inch grove on the inside of the box.

I am using a router table to do the grove. I have brass setup bars. Do I use the 1/4 inch bar to set the grove the correct distance from the outside edge of board to have the 3/16 inch router bit centered a 1/2 inch from the outside edge of the board?

I am 67 years old and have not attempted a woodworking project since
high school in 1966 and feel a little lost.

Hi Keith,

If I am thinking the same as you (see above drawing), then it sounds like you will have the bit centered 11/32" from the fence (set up block = 1/4" plus 1/2 the bit diameter).

I confess I never use measuring blocks because they never seem to be the size I need. In this case, if you want the groove centered 1/2" from the edge of the board, I think the easiest way would be to simply use a steel ruler, if you have one, to measure from the fence to the center of the bit to get your half inch. Then do a test cut on some scrap to make sure it is exactly where you want it. You may need to tap the fence forward or back a hair to get it perfect. You can also test the depth of cut in the same way.

I hope it works.

Click here to post comments

Join in and write your own page! It's easy to do. How? Simply click here to return to woodworking questions.

For those who are interested in this site check out the links and let me know if there is a topic you would like to see me cover.

Please note: woodworking is potentially dangerous. Please read my woodworking disclaimer before using any information on this site or any site you may be directed to from here.

Thanks for visiting.