Leigh D4R Pro, User Manual

Page: 68 / 92

SLIDING DOVETAILS
60
Chapter 16 D4R Pro User Guide
16-1
With the finger assembly in
H
HB TAILS mode, the sliding
dovetail fence fits into the recesses in the ends of the tail guides
for routing sliding dovetails.
Space the guides fairly evenly across the jig. Firmly seat the
fence into end of each guidefinger to ensure a straight cut.
16-2
Using the sliding dovetail fence as a guide surface for the
guidebush, you can make lateral router cuts across the faces of
horizontal boards (we call these dovetail slots), and...
16-3
Across the top ends of vertical boards to cut the tail. First
rout one side
➀
...
…then turn the board side-over-side
➁
to cut the other half of
the tail.
12
11
16-4
Turn the e7-Bush to “5” and use the No. 120-8,
1
⁄
2
"x 14°
bit for sliding dovetails. This
e7-Bush
setting will allow for fine
fit adjustment of the tail later.
A standard
7
⁄
16
"[11,1mm] guidebush (min. depth
1
/
4
" [6,35mm]
see page 69) can be used but without the fine adjustment provided
by the
e7-Bush .
5
16-5
On a full width joint, the slot depth-of-cut should be no more than
1 ⁄
3
the board thickness
➀
. If the tail board is a load-bearing horizontal
member (e.g., bookshelf or step), make the tail fairly thick for good tail
neck strength
➁
. Shorter sliding dovetails for less structural demand
may be slightly deeper, with narrower profiles, especially if appearance
is important
➂
(e.g., where narrow rails join wider boards).
3
2
2/3
1/3
1
16-6
Use 3 ⁄
4
"x 5 1 ⁄
2
"[20x140mm] softwood to make two slot
boards
➀
, plus one narrow test slot board
➁
, two tail boards
➂
and one narrow test tail board
➃
. The tail boards
➂
and test tail
board
➃
must be exactly the same thickness. This will make two
uprights and two shelves.
1
2
3
4
=