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She will use the table saw and the stacked dado set to cut the tenons. These
tenons could also be made very easily at the router table.
Since the mortise is not exactly in the middle of the workpiece, she will set
the height for one side of each tenon at a time.
She sets the height using the mortise of the sample piece she cut at the
beginning.
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If there is a "trick" to
making great tenons, it is to take your time and do each step carefully. Beth has
carefully raised the dado cutters until she has gotten exactly the right cut for the top
of the tenon.
Having made one pass, she can adjust the Incra Stop on the Incra Miter Gauge
so that her final cut will give her a tenon that is exactly 1" long [she has made her
mortise depth, 1 1/8" deep.]
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With the tops
cut, she is back to her sample piece. She raises the dado blades very slightly and makes
more passes until the cut is exactly right.
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She checks her final cut.
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We are not sure exactly why, but the
instructions say to have the bottom tenon 1/16" wider than the top. The adjustment of
the Incra Stop makes adding this fraction very easy and exact.
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I don't know if you can see it, but the
lower tenon is 1/16" wider Beth has made a very exact tenon. Now it is time to
add the cope shape.
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As I noted at the beginning, the
new bit set has a cope bit with a pattern bearing it makes this set very unique.
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Beth chides me for using the Delta
Miter Gauge "something we will probably never use" she reminds me of my
recent words.
She has used the forward clamp to hold a piece of 1/2" MDF which she is
adjusting to ride against the bearing.
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She has now placed her tenon face
side down on the 1/2" MDF and is adjusting the height of the bit so that the bit just
"kisses" the underside of the tenon.
The RouterRaizer makes adjusting the router easy and precise.
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With the router bit height set, she can
place the workpiece against the miter gauge and carefully adjusts the end so that the
tenon's shoulder is aligned with the 1/2" MDF. She uses the second holddown to clamp
the workpiece in place.
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If a picture can tell a story, this is
that picture. Beth makes the cut. In fact, we probably should have added a backer board
behind the workpiece to minimize splintering. Beth just made the cut slowly
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She has a perfect coped tenon. Now she
can profile the rails and stiles.
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