SLIDING DOVETAILS
54
Chapter 13 Super Jig-12-18-24 User Guide
13-13 Check to see if this short slot is centred on the pencil line.
If not, adjust the finger assembly in or out and re-test on the other
lines as necessary until the slot is centred. Lock the finger assembly
in this position and record the setting for future reference.
13-14 Now rout sliding dovetail slots in the two main slot boards
with the boards in the horizontal position in the rear clamp, slot
side, that is inside face
i
up.
The guidefingers must be flush on the board.
13-15 Replace the spacer board in the rear clamp, and with
the finger assembly on the spacer board, mount a test tail board
vertically in the front clamp, flush under the guidefingers. Either
side can face out
j
.
13-16 The
H
HB TAILS scale is not designed for this mode,
but it does allow you to make quick adjustments for tail size and
joint fit on sliding dovetails.
Adjust and set the finger assembly
so it is clear that the routed
tail
will be too large for the slot.
2
1
13-17
Rout one side of the test tail board.
Make one light pass from right to left (climb
routing). Make sure you control it firmly, because it is driven in
this direction by the bit. Only the tip of the bit should be cut-
ting on the first cut (see inset). This back or climb routing leaves
a very clean shoulder in side grain.
13-18 Finish left to right, with the guidebush touching the fence.
Turn the test tail board around in the jig and rout the other side
in the same manner.
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