Now Beth has run the T-nut bolt in the channel and
fastens the Angle Unit to it. As she tightens the lock nut, she checks to
see that the three pins of the device are comfortably in the channel.
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Beth has slid the Quick Clamp FS-HZ 160 into the track
underneath.
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After the Quick Clamp is put into the track, Beth can now slide the
Deflector FS-AW onto the end of the guide rail. It helps greatly to keep the
electrical cord and vacuum hose in line so that they do not catch on the
table during the cut.
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The next thing Beth wants to do, is move the Angle Unit
on the guide track so that the Defector (arrow) is back far enough to allow
the plunge saw base to sit just forward of it, and the riving knife
of the saw positioned where it will be behind the start of the wood. The
line across indicates where the Angle Unit's fence is.
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With the Angle Unit properly placed, this is
how the side should look. The arrow points to the riving knife. When the saw
is started and plunged, the saw blade will come down into the wood and start
the cut smoothly. The saw's base is on the Guide Rail and backed up to sit
just touching the Deflector.
It may sound confusing, but once this is set up, no further change
is necessary. We keep this setup locked to the guide rail and ready to be
used.
This allows us perpendicular cuts one after another.
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Now to the rip cuts. Beth pulls down a full sheet of melamine particle core
board. I have the lumberyard deliver the sheets and stack them vertically
on the panel storage handler (click here for more
information),
What's nice about this is that any one
of us can flip a heavy piece of this board (85 lbs.) by his or her self.
Once it is on the work table, it can be easily slid into more exact
position.
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Beth
marks where her rip cut will be — 23 1/2". She will make this mark at three
points and then align the guide rail to the marks.
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She carefully sets the guide rail so that the pencil mark
just shows. In this case, the mark is in the shadow of the guide rail so she
has to take extra caution to align it correctly. Even using a .002
draftsman's pencil still allows for some variance — more than what a table
saw fence would produce,
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Here is a better way to make accurate guide rail
settings. Beth starts by placing one of these brass screw stops exactly at
the 23 1/2" mark (a reader wrote to tell me that these are "stair
gauges.) These are available at any hardware store and are used
with a framing square.
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Now with the brass stop against the edge of the panel,
the start of the ruler is under the guide rail and she can align the rail by
touch to this end (arrow). Now she has exactly the measurement she
wants — but the guide rail will move when she removes the yardstick.
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Having marked the width of the guide rail on
the start of the yardstick, she can carefully cut to this mark — about 8
3/8" but don't do it by measurement. Draw a line when the yard stick is
under the guide rail. It is best to leave the cut fractionally long and file
it down to the exact width. In our case, Beth cut down two such yardsticks.
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Now Beth "calibrates" the cutoff yard stick. The left arrow points to a
machinist's ruler that is clamped to the edge of the table and run under the
guide rail. The guide rail is set exactly to the 23 1/2" mark
on the other side. With the guide rail exactly where she wants it, she
checks her new cut-down yard stick. The brass stop is against the edge of
the board and the guide rail "kisses" (right arrow) the cut-down end. Since
she cut down two yardsticks, she can use these from now on to set the guide
rail without pencil marks or measuring in any way. Just set the two brass
stops at the measurement you want and move the guide rail to touch. It
is a great way to get parallel "rip" cuts.
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