Half-Blind Dovetail Tailboards Thicker Than 7/8 - Porter-Cable 4216 Instruction Manual

Cutting a dado with a template guide that has an OD smaller than 3/4" requires two passes.
1. Start on the left side. Keep the router toward the back edge of the dado slot, and cut to the right until you have
completed the cut.
2. Start on the right side. Keep the router towards the front edge of the dado slot, and cut to the left until you
complete the cut.
3. Leave the router in the dado slot until the bit stops spinning.
NOTE: For deep cuts, use a straight bit first.
NOTE: Cut the tenon just as you would a standard tenon.
HALF-BLIND DOVETAILS WITH TAIL BOARDS THICKER THAN 7/8"
For tail boards thicker than 7/8", you can use the template normally used for through dovetails (instead of that used
for half-blind dovetails) to provide deeper pins and tails (Fig. 24A).
The procedure is the same as that for a normal half-blind dovetail.
NOTE: Use the "half-blind" line for aligning the template.
With the wood clamped to the base of the jig, the maximum thickness will be 1-1/8". By using a template mounted
to a clamping board, you can use much thicker wood, producing a strong joint.
I.D. OF TEMPLET GUIDE
THERE IS A MINIMUM DEPTH OF CUT
WHEN THE DIAMETER OF THE ROUTER
BIT IS GREATER THAN THE INSIDE
DIAMETER OF THE TEMPLET GUIDE
1/4" Maximum
Fig. 23A
Fig. 24A
DOVETAIL BIT
TEMPLET GUIDE
ROUTER SUB BASE
DOVETAIL BIT DIAMETER
17
Fig. 22A
Fig. 23B
Fig. 24B