27
THROUGH DOVETAIL PROCEDURES
Chapter 8Super Jig-12-18-24 User Guide
8-QR1 Through dovetails are laid out in
d
TD PINS mode with
the finger assembly slightly raised above the spacer board and the
pin board. The outside face
o
of the TD pins is away from the
jig body.
8-QR2 TD tail boards are clamped vertically in the jig. The
inside face
i
of the TD tails is away from the jig body. The fin-
ger assembly is in
D
TD TAILS mode, set on the “ALL” setting.
There is only one setting in this mode.
�
8-QR3 The finger assembly is in
d
TD PINS mode, with the
scale set to a recorded setting (see detailed fit instructions, 8-24 to
8-30). TD pins are cut with a straight bit; the only time a straight
bit is used in dovetailing.
This is the only one of the four main modes that puts the outside
face of the board away from the jig body.
8-QR4 Through dovetail tails are always routed with an 8° dovetail
bit to match the 8° guide finger. All through dovetail routing on
the Superjig is done with the Leigh e7-Bush, or any
7
⁄16" [11,1mm]
diameter bush (min. barrel length
1
/4"[6,35mm]). See page 68 for
more on routers and guide bushings.
[6,35mm]
1
/
4
"
7
/
16
" [11,1mm]
8-QR
5
Here is a quick reference selection chart for through dove-
tail bits. Please study the bit selection specifications in
Appendix ii for full details of each through dovetail bit .
Note:
13
⁄16"[20mm] is the maximum through dovetail pin
board thickness. Boards as thin as 1/8" may be routed and
joined using through dovetail bits 50-8 and 60-8, along with
straight bit 140-8
The Leigh e7-Bush or a straight barrel " OD guide bush
are the only guide bushes that can be used with Super Jigs.
■
Thickness of
Tail Board
Thickness of
Pin Board
Dovetail
Bit
Straight
Bit
Guidebush
Diameter
up to
13
/16"[21]
1
/2" -
13
/16" [12-20] No.80-8
No.140-8
e7-Bush or
7
/16" [11,1]
diameter
bush
up to
13
/16"[21]
3
/8" -
5
/8" [10-16] No.75-8
up to
13
/16"[21]
1
/4" -
1
/2" [6-13] No.70-8
up to
13
/16"[21] up to
3
/8" [10] No.60-8
up to
13
/16"[21] up to
1
/4" [6] No.50-8
Numbers in brackets are millimeters
QUICK REFERENCE REMINDERS
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