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Frank LaRoque writes:

Groop,

Others have started this and I am sending a picture of the on that I built.

It is a piece of 3/4" plywood with oak runners. Size does not matter,
I have two or three sizes for different cuts. One is for dados..

First cut two hardwood runners that fit exactly in the table slots.

Cut a 3/4" piece of plywood to the size desired, this one is 18 x 37.

Cut a 1-1/4" x 3" hardwood board with a 1/8" x 1/8" rabbit on one edge.

Cut a piece of 3/4" plywood 2-1/2" wide to glue on top of the hardwood.

Place the runners into the slots and apply glue.

Set plywood over the runners and either nail or
screw the runners into place.

Remove from the saw table and remove the excess glue !

Start the saw, raise the blade and cut into the plywood,
stopping 6" from cutting through.

With the framing square, place the hardwood piece as close as
you can to 90 degrees to the saw cut. I true each side to the cut
to assure that it is right on the "button". Glue and nail into place.
Then add a couple of screws.
Then attach the plywood on top of the hardwood.

The double layer is protection from some damn fool cutting your
sliding table in half. If you look close at mine, you will see that it
needs to be replaced because that is what happened to me.

If you can see them, there are two marks on top that show me
where the runners are below and I can hit the slots a lot easier.

There are lots of variations.
I showed you mine, now, you can show me yours
:o)

I also have 15, 30, 40 and 60 degree inserts for this sliding table
to accurately cut miters in wide boards.

The big advantage of having this jig is it is absolutely necessary to
make a board square. You can trim one side of a board so's it is
true and straight, run her through the table saw ad the sides are
parallel. NOW, use your new sliding table on the ends and you
have a board with perfect 90 degree corners.

Some sage will say that he has a radial arm ... good for him.
No radial arm will cut a 90 degree as accurately as this jig,
time after time after time. Been there and I have a $1800 radial arm
that is one of the best. No comparison.

Now, you have the rest of the story...