Porter-Cable 4210, 4212 instruction manual Acute Angled Joints, Setup

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ACUTE ANGLED JOINTS

An acute angle joint joins two boards together at an angle less than 90°. The acute angled joint is very similar in construction to the the obtuse angled joint and can be used with the obtuse angled joint to make boxes with angles other than 90°.

SETUP

Fig. 55A

Joint Angle

Use the same setup as you would for the obtuse angled joint. Use 180° minus the joint angle for the insert angle when you make your angled insert or your angled clamping board.

NOTE: If the acute angle and the obtuse angle add up to 180°, use the same setup for both joints.

CUTTING THE TAILS

Step 1 -

Step 2 -

Step 3 -

Step 4 - Step 5 -

Cut the end of the tail board according to the instructions on the drawing (Fig. 56A). Steep angles or thin wood will make for a weak joint. Make this cut on a table saw with the blade beveled. Set the miter gauge at 90° for the first cut and use a tenoning jig for the second cut (Fig. 56B).

Clamp the workpiece as you did for the obtuse-angled joint, except face the outside surface of the board away from the base of the jig.

Step 3 is identical to Step 5 in "CUTTING THE TAILS" of the obtuse-angled section. Set the router bit depth to where the step is in the tail board.

Cut the tails and remove the tail board.

FIRST CUT

SECOND CUT

THICKNESS OF PIN BOARD

THIRD CUT

(IF NECESSARY)

ANGLE BETWEEN BOARDS

OUTSIDE

INSIDE

SURFACE

SURFACE

OF BOARD

OF BOARD

 

Fig. 56A

Fig. 56B

CUTTING THE PINS

Step 1 -

Step 2 -

Step 3 -

Step 4 -

Cut the end of the pin board according to the instructions on the drawing (Fig. 57A). Steep angles or thin wood will make for a weak joint. Make this cut on a table saw with the blade beveled, and with the miter gauge set at 90°.

Clamp the workpiece as you did for the obtuse-angled joint.

Hold the boards together and mark the end of the pin board at the edges of the tails.

The remainder of the steps, including fitting the joint, are identical to the obtuse-angled joint section.

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Contents Supplementary Instructiondovetail JIG Manual Table of Contents Safety Guidelines Definitions Important Safety InstructionsBackground Information Additional Safety RulesReplacement Parts Operation Miscellaneous TechniquesTHROUGH-DOVETAILS with Clamping Boards SetupTemplates Mounted to Clamping Boards Cutting the Pins Cutting the TailsTHROUGH-DOVETAILS with Unlimited Board Width Fitting the JointSet the router bit depth, using the pencil mark from Step Fitting the joint is identical to the previous section a HALF-BLIND Dovetails with Clamping Boards Blind Dovetails with Tail Boards Thicker than 7/8Cutting the Joint Wood GrainUsing 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 Mitering the Pins Mitered THROUGH-DOVETAILTHROUGH-DOVETAIL, SKIPPED-PIN Method Mitering the TailsHALF-BLIND DOVETAIL, Skipped PIN Method Cutting the Pins SAW Kerf Allowance Method Cutting the Tails Multiple Spacer Method END-TO-END JointsFitting and Cutting the Joint BOX END-TO-END JointsDrawers with Dovetail Dados Dovetail END-TO-END JointsWooden Hinges Hinges with a Drilled HoleHinges with ROUTER-MADE Grooves Hinges with ROUTER-MADE Grooves Obtuse Angled Joints Setup with the Template Mounted to the Base of the JIGAngled Joints Setup with the Template Mounted to a Clamping Board Cutting the TailsCutting 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 Tables of Commonly Available Router BIT Sizes Through Dovetail Router BIT CombinationsHALF-BLIND Dovetail Bits BOX Joint BIT CombinationsAccessories Troubleshooting MaintenanceService Warranty PORTER-CABLE Limited ONE Year WarrantyCanadian PORTER-CABLE Delta Service Centers Michigan
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