Leigh D4R Pro, User Manual

Page: 35 / 92

27
THROUGH DOVETAILS
Chapter 8 D4R Pro User Guide
8-39
Through dovetails are laid out in the d TD PINS mode
with the finger assembly slightly raised above the spacer board.
The outside face
o of the TD pins is away from the jig body.
8-40
TD tail boards are clamped vertically in the jig. The inside
face
i
of the TD tails is away from the jig body. The finger assem-
bly is in the D TD TAILS mode, set on the single
≤
1"[
≤
26mm]
setting. There is only one setting in this mode.
8-41
Clamp TD pin boards vertically in the jig.
This is the only
one of the four main modes that puts the outside face o of the
board away from the jig body. The finger assembly is in
d
TD
PINS mode, with the scale set to a recorded setting (see detailed
fit instructions 8-21 to 8-34). TD pins are cut with a straight bit;
the only time a straight bit is used in dovetailing.
8-42
Through dovetail tails are always routed with an 8° dovetail
bit to match the 8° guide finger. All through dovetail routing on the
D4R Pro is done with the Leigh e7-Bush, or any
7
⁄
16
" [11,1mm]
diameter bush (min. barrel length 1 ⁄
4
"[6,35mm]). See page 70 for
more on routers and guide bushings. The 716C or a 5 ⁄
8
"[15,9]O.D.
guidebush is used for
1
⁄
2
" shank TD bits. See Chapter 9.
[6,35mm]
1 /
4
"
7 /
16 "
[11,1mm]
8-43
Here is a quick reference selection chart for
through dovetail bits and guidebushes. Please study
the bit and guidebush selection appendixes for a full
explanation.
■
QUICK REFERENCE REMINDERS
Thickness of
Tail Board
Thickness of
Pin Board
Dovetail
Bit
Straight
Bit
Guidebush
Diameter
1
/
8
" - 1"
[3-26]
1" - 1 1 /
4
" [26-32] No.100 No.150
Leigh 716C
or 5 /
8
" [15,9]
5 /
8
" - 1" [16-26] No.90 No.160
1
/
2
" -
13
/
16
" [12-20] No.80-8
No.140-8
Leigh e7
or 7 /
16
" [11,1]
3 /
8
" - 5 /
8
" [10-16] No.75-8
1 /
4
" - 1 /
2
" [6-13] No.70-8
1
/
8
" -
3
/
8
" [3-10] No.60-8
1 /
8
" - 1 /
4
" [3-6] No.50-8
Numbers in brackets are millimeters