SINGLE PASS HALF-BLIND DOVETAILS
42
Chapter 10 Super Jig-12-18-24 User Guide
10-20 Keep the test tail board that fits well, and mark it with
the number of the bit you used to rout it. For quick set-up next
time, clamp this tail board in the jig as a depth-of-cut gauge
to
show how far to lower the bit. Better yet, measure the bit projec-
tion from the end of the guidebush
or guidebush flange
and
record this for fast set-ups in future.
1
3
2
10-21 When you have the proper tightness of fit, check the
flushness. The tails should be under flush to the pins by no more
than
1
⁄ 64"[0,3mm] to allow for cleanup (exaggerated here). Any
concentricity errors in the collet and guidebush on different routers
will affect this tolerance.
1/64[0,3mm]
10-22 If the tails stand out from the pins, set the
H
HB TAILS
scale away from the operator by half the amount required.
10-23 If the tails fit in too far past the pins ends, set the
H
HB TAILS scale toward the operator by half the amount
required.
1/64[0,3mm]
10-24 To make a box, repeat the procedure four times, ensuring
that the drawer fronts, rears and sides are all rotated correctly in
the jig, keeping the inside face
i
of the boards away from the
jig.
10-25 Assemble the drawer. As with through dovetails, it doesn't
matter which edge of any of the boards are at the top or bottom,
the drawer will still fit together e.g. pin board “A” can be up either
way.
X
A
A
X
Y
Y
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