Page 20 - Router Boss Manual
P. 20
Before you can make the finger cuts in the mating side
pieces, you’ll need to do a little math. Because we
used a 1/2” bit to make the cuts, we’ll be adding or
subtracting that amount from our previous settings.
Since the scale reads in 32nds of an inch, we’ll use
16/32” which is equal to 1/2”. (For the digital scale,
it’s simply .500”)
Draw a line under your first set of numbers to indicate
these are the front and back pieces.
To get your initial RIGHT hand setting, SUBTRACT
the bit width (16/32) from the first LEFT hand setting
of 1 16/32”. [1 16/32 - 16/32 = 1]. Write 1” at the top
of the new right hand column.
To get the first LEFT hand setting, ADD 16/32 to the
first RIGHT hand setting of 0” [0 + 16/32 = 16/32”].
Continue to subtract and add to get the remaining set-
tings.
Clamp the two side pieces together in the Router Boss
and turn the crank handle to the first LEFT cursor set-
ting, in this case 0 16/32”. (On the digital scale, this
would be .500 +/- .003.)
Zero the bit on the workpiece and set your depth stop
setting, this time using one of the end pieces as a depth
gauge in your router’s depth stop.
Move the router behind the workpiece, plunge the bit,
lock the plunge mechanism, and make the cut from
back to front. Turn the crank handle to the first RIGHT
cursor setting and make this cut from front to back.
Proceed making the rest of the left and right cuts. Then
flip the workpieces end-for-end, and cut the remaining
fingers.
That’s it. The finger-joint portion of your box is com-
plete.
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