Angled joints, Obtuse angled joints, You can join boards at angles other than 90 – Porter-Cable 4212 User Manual

Page 29: Or greater, you must use the clamping board method, Fig. 50a, Fig. 51a, Fig. 51b fig. 51c a

ANGLED JOINTS

OBTUSE ANGLED JOINTS

You can join boards at angles other than 90

. Four different methods are shown below by using the through dovetail

procedure.

The simplest of these angled joints is the obtuse-angled
dovetail. In this joint, two boards are joined together at an
angle greater than 90

Fig. 50A

This joint can be made with either the template mounted to the
base of the jig or to a clamping board. If the angle is 100

greater, you must use the clamping board method.

Joint

Angle

SETUP WITH THE TEMPLATE MOUNTED TO THE BASE OF THE JIG

MAKE TWO COUNTERSINKS FOR

1/4-20 FLATHEAD SCREWS.

THE 1/4-20 SCREWS MUST NOT

PROTRUDE PAST THE OUTER

SURFACE OF THE INSERT.

9/16

1-1/8

1/4

DRILL TWO

" HOLES

1/4

INSERT ANGLE

Fig. 51A

Make an angled insert according to one of the drawings (Figs. 51A and 51B).Match the angle of the insert
with the joint angle. If the workpiece is wider than 6" use the 12" insert.
Make sure that the 1/4-20 flat-head screw does not protrude (A) Fig. 51C.
Remove the small front knobs, the front clamping rod, and the front clamping U channel. Leave the
springs.
Use two 1/2" 1/4-20 flat-head screws to secure the angled insert to the front of the base of the jig, with
the thicker edge of the insert up. If you are using the 6" insert, install it in the 2 holes on the right (Fig.
51C).
Replace the hardware that was removed in STEP 3.

Step 1 -

Step 2 -
Step 3 -

Step 4 -

Step 5 -