Obtuse Angled Joints | Porter-Cable 4212, 4210 guide

ANGLED JOINTS

You can join boards at angles other than 90°. Four different methods are shown below by using the through dovetail procedure.

OBTUSE ANGLED JOINTS

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°.

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° or greater, you must use the clamping board method.

Joint

Angle

Fig. 50A

SETUP WITH THE TEMPLATE MOUNTED TO THE BASE OF THE JIG

Step 1 -

Step 2 - Step 3 -

Step 4 -

Step 5 -

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.

MAKE TWO COUNTERSINKS FOR 1/4-20 FLATHEAD SCREWS. THE 1/4-20 SCREWS MUST NOT PROTRUDE PAST THE OUTER SURFACE OF THE INSERT.

DRILL TWO 1/4 " HOLES

INSERT ANGLE

	1-1/8	"
		9/16	"
12 "	1 "
14 "			1/4	"
			1/4	"

DRILL TWO 1/4 " HOLES

4 "	1 "
7 "

MAKE TWO COUNTERSINKS FOR 1/4-20 FLATHEAD SCREWS. THE 1/4-20 SCREWS MUST NOT PROTRUDE PAST THE OUTER SURFACE OF THE INSERT.

1-1/8 " 9/16 "

INSERT ANGLE

1/4 "

Fig. 51A

Fig. 51B

Fig. 51C

A

29

Image 29

Porter-Cable 4212, 4210 instruction manual Obtuse Angled Joints, Setup with the Template Mounted to the Base of the JIG

Contents

Supplementary Instructiondovetail JIG Manual Table of Contents Important Safety Instructions Safety Guidelines Definitions Background Information Additional Safety RulesReplacement Parts Miscellaneous Techniques Operation THROUGH-DOVETAILS with Clamping Boards SetupTemplates Mounted to Clamping Boards Cutting the Tails Cutting the Pins Fitting the Joint THROUGH-DOVETAILS with Unlimited Board Width Set the router bit depth, using the pencil mark from Step Fitting the joint is identical to the previous section a Blind Dovetails with Tail Boards Thicker than 7/8 HALF-BLIND Dovetails with Clamping Boards Wood Grain Cutting the Joint Using a Router Table THROUGH-DOVETAIL BIT Combinations Readily Available Alternate Router BitsTHROUGH-DOVETAIL Bits HALF-BLIND Dovetail BIT Readily Available Dovetail Dado Bits BOX Joint BitsBOX Joint Bits Readily Available HALF-BLIND Dovetails with Tail Boards Thicker than 7/8 Mitered THROUGH-DOVETAIL Mitering the Pins Mitering the Tails THROUGH-DOVETAIL, SKIPPED-PIN Method HALF-BLIND DOVETAIL, Skipped PIN Method Cutting the Pins SAW Kerf Allowance Method Cutting the Tails END-TO-END Joints Multiple Spacer MethodFitting and Cutting the Joint BOX END-TO-END Joints Dovetail END-TO-END Joints Drawers with Dovetail Dados Hinges with a Drilled Hole Wooden Hinges Hinges with ROUTER-MADE Grooves Hinges with ROUTER-MADE Grooves Obtuse Angled Joints Setup with the Template Mounted to the Base of the JIGAngled Joints Cutting the Tails Setup with the Template Mounted to a Clamping Board Cutting the Pins Acute Angled Joints SLANTED-SIDE Joints COMPOUND-ANGLE Joints Setup Blade Tilt Angle Make Angled CUT Make the First Joint Inlayed JointsInlayed Through Dovetail Make the Second Joint Inlayed HALF-BLIND DovetailCUT OFF the Inlay Board 100 13/128 050 042 028 014 Inlayed BOX Joint Through Dovetail Router BIT Combinations Tables of Commonly Available Router BIT SizesHALF-BLIND Dovetail Bits BOX Joint BIT Combinations Accessories Troubleshooting MaintenanceService PORTER-CABLE Limited ONE Year Warranty Warranty Michigan Canadian PORTER-CABLE Delta Service Centers