Porter-Cable 4212 (29550) instruction manual BOX Joints, Cutting the First Workpiece

BOX JOINTS

Box joints have straight protrusions that interlock and must be held together by glue. The large amount of gluing surface provides the strength necessary for large projects.

NOTE: If you are using the 4210 dovetail jig, you will need the 4213 accessory kit to make this joint. You will need the 4215 accessory kit for the miniature box joints.

Box joint fingers are spaced in 1" increments (1/2" for miniature).

ITEMS NEEDED

●Through Dovetail and Box Joint Template

●1/2" diameter straight bit (not provided) Length of the cutter must be at least the thickness of the workpiece.

●3/4" O.D. Template Guide, 42040

●Template Guide Lock Nut, 42239

ITEMS NEEDED FOR MINIATURE

●Miniature Dovetail Template

●1/4" diameter straight bit (not provided)

At least 1/2" long cutter

●3/8" O.D. Template Guide, 42037

●Template Guide Lock Nut, 42239

CUTTING THE FIRST WORKPIECE

Step 1 -

Step 2 -

Step 3 -

Clamp a scrap board (A) Fig. S1 in the upper clamp (horizontal mounting position) that is the same thickness as the second workpiece.

Use the T-handle wrench (A) Fig. S2 to loosen the screw on the left offset guide (B). Move the guide to the far left.

Mount the workpiece (A) Fig. S3 in the lower clamp (vertical mounting position) with the outside surface against the jig base.

A

S1

B

A

S2

A

S3

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