Porter-Cable 4212 - Manual (Page 24)

24
END-TO-END JOINTS
You can use the 4200 series dovetail jigs to join boards end-to-end to increase length and to make visually
interesting larger panels.
BOX END-TO-END JOINTS
Fig. 42A
Remove the spacer and slide the pin board to the left (Fig. 39D).
Start with the pin to the right of the mark and cut the rest of the pins to the right (Fig. 39E).
FITTING AND CUTTING THE JOINT
Fitting the joint is the same as fitting the standard dovetail.
Once the box is glued and dried, separate the box lid and
bottom with a table saw.
MULTIPLE SPACER METHOD
The saw kerf allowance method can be modified by using
multiple spacers on the same joint to create more varied
spacing of the pins and tails.
However, when removing or adding a spacer, continue cutting
the NEXT tail (instead of cutting the SAME tail as described in
“CUTTING THE TAILS” - STEP 5), and continue with the
SAME pin (instead of cutting the NEXT pin as described in
“CUTTING THE PINS” - STEP 5).
Fig. 39D Fig. 39E
Fig. 41A
Step 4 -
Step 5 -
Fig.40B
End-to-end and standard box joints are the same except in the
joining of the boards. You can use any depth of cut with your
router as long as you use the same depth on both boards.
NOTE: When you set your depth-of-cut, set it so that the bit
won’t cut into the base of the jig.