When I used this
Incra Jig setup last week, I noticed a very slight wobble between the fence and the table.
It was clearly my fault. The Incra Jig is clamped to the post I constructed, but this post
is not directly attached to the table.
Having some very minor movement is not close enough. So this week I tied
everything together. It really is very easy. Here is what I did.
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I plan to install two
Tite-Joint Fasteners across the gap of the router table top and the top of the add-on
column. The two are aligned by the beadLOCK loose tenons, but these fasteners will hold
the two surfaces tightly together.
If you are unfamiliar with these, look under your kitchen counters —
they are popularly used to connect the counter tops.
When they are installed correctly, they are great. Here is how I installed
them.
[See order information at end of story.]
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The fasteners come with instructions for mounting using a 3/4" drill to drill the two
holes. A second hole needs to be drilled laterally — somewhat like installing a dead
bolt on a door.
I have always installed them with a router and a home made jig. I find that,
once the jig is made, the installation is quicker and more exact. Also, I get nervous when
having to drill a hole 5/8" deep in a router table top. I know I can plunge cut
exactly.
I have installed a 3/8" up-spiral bit (CMT No. 191.503.11) and a
3/4" guide collar.
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On a scrap of
birch plywood, I mark a line down the center and then add two marks where the centers of
the fastener are located, i.e. 3-inches apart.
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At the drill press, I used a
1 1/2" Forstner bit to drill holes at those marks.
With the 3/4" bushing, I mark lines just outside the bushing.
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I use a saber saw to make
straight cuts along those lines.
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Once cut, I use the guide
collar to test the groove. The collar should move freely between the two holes.
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I have gone back to the
drill press and have drilled 1/2 of a hole at both ends using a 7/8" Forstner bit.
This will allow the router to cut space for the screw that protrudes at each end when the
fastener is tightened.
Note the cross line. That line is exactly centered between the 2 holes and
will be used to line up the jig. It is timed to use the jig.
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