1/2" BOX JOINTS

1/2" Box Joint

The following are required to produce 1/2" box joints:

 

889676 #3 Edge Guides (furnished with Model 4115)

Available

42046

5/8" Templet Guide (furnished with Model 4112)

as

42237

Locknut (furnished with Model 4112)

Accessories

4115

1/2" Box Joint Templet

 

43318

1/2" Carbide Tipped Straight Bit (1/4" Shank)

 

or

 

 

43057

1/2" Carbide Tipped Straight Bit (1/2" Shank)

Fig. 18

NOTE: Any material up to 13/16" thick can be joined together with box joints.

PREPARING ROUTER

Prepare router the same as for 1/2" half-blind dovetails except install 1/2" straight bit and adjust depth of cut, (B) Fig. 5, equal to 1/4" plus thickness of material to be joined.

CLAMPING BOX PARTS

NOTE: All box joint cuts are made with the box parts clamped to the front of the Dovetail Fixture/Jig.

1.Install #3 edge guides to Dovetail Fixture/Jig and slide to end of base, do not tighten at this time.

2.Place a piece of scrap material, that is approximately 1/4" thicker and at least as wide as the boards to be joined, under the top clamp and flush with front of Dovetail Fixture/Jig.

3.Place the box joint templet on top of the scrap material and adjust so there is about 3/8" (Fig. 19) from back of templet slot to edge of scrap material at both ends of templet.

4.Mark center of board to be routed (see Fig. 20). Place board under front clamp, against bottom of box templet. Locate the board center mark 1/16" to the right of the templet finger slot that is closest to the left end of the templet (see Fig. 20).

5.Slide edge guide to the right against board to be routed and secure in place.

Fig. 19

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Porter-Cable 4112, 4113, 4114, 4115 instruction manual BOX Joints, Clamping BOX Parts