Placing 6 degree mortice in board

[Don Morris]

I have to place multiple 1" wide X 1/4" deep mortices separated by 1/2". in a 20" long board. The trick is they have to be placed at a 6 degree angle. Suggestions on how to proceed. Is there an obvious std. way to put angled mortices in a board? Thanks for suggestions and guidance.

[steven c newman]

A shim, cut at the angle you need can be placed under the board. The mortiser will still be at 90 degrees to the table. The board just slides along on the shim/wedge. Make the wedge long enough to go past each end of the table. Note: a shim or two from a package of door shims will work just fine.

[Will Overton]

I have to place multiple 1" wide X 1/4" deep mortices separated by 1/2". in a 20" long board. The trick is they have to be placed at a 6 degree angle. Suggestions on how to proceed. Is there an obvious std. way to put angled mortices in a board? Thanks for suggestions and guidance.

If you are using a mortiser, cut a shim to hold the board at 6 degrees. Put the shim between the board and the fence.

[Chris Padilla]

Domino with a shop made fence to get the required angle but you probably don't have one of those.

What tools do you have? A mortiser? Do them all by hand?

[Jamie Buxton]

More info... What tools do you have? Hollow-chisel mortiser? Drill press? Plunge router? Just hand tools?

[Stephen Cherry]

Your table saw has a big angle scale. For my hollow chisel mortiser I like to use a section of 4x4 with a notch ripped at the angle, with the sides of the notch at 90 degrees to each other. That way the board is referenced on two sides.

[Don Morris]

After reading the post. I think it may need clarification. The mortises only need to be: 1/4" W X 1" L X 1/4" Deep. Multiple, separated by 1/2". The shim sounds simple and I briefly thought about that. I believe I could make a jig up to use that with my plunge router. I don't have a hollow-chisel mortiser (hmmmm, new tool?).

[steven c newman]

made up of two 1xs with a shim running down the center line. Plunge bit through the shim. The 1xs would be on either side of the shim, and act as a guide for the router.

[Philip Rodriquez]

Just eye-ball it.;)

[glenn bradley]

If you are making louvers, which it sounds like you are, a hardboard jig and a plunge router would be my choice.

[Don Morris]

The project is essentially like louvers, so the hardboard jig and plunge router is what I'm going for. Thanks for the ideas!