Porter-Cable 3807 User Manual download pdf (Page 15)

USING SAW AS A CHOP SAW

When cutting material that is narrow enough to allow the saw blade to cut through in a chopping motion (similar

to a conventional miter saw) instead of sliding the saw blade through the workpiece, the sliding action of the

saw must be locked in the rear position, as shown in Fig. 45, by tightening lock knob (A). The cuttinghead (B)

is pushed straight down to make the cut. Af ter the cut is completed, release the switch trigger and let the blade

come to a complete stop before returning the cuttinghead to the up position.

DADO CUTTING

Dado cutting can easily be accomplished with your compound slide saw, as shown in Fig. 46, using a single saw

blade and moving the workpiece sideways the width of the saw blade af ter each cut. The cut is made in the

conventional way as explained in the section CORRECT OPERATING PROCEDURE and the downward travel

of the saw blade is adjusted for the depth of the dado as explained in the section ADJUSTING DOWNWARD

TR AVEL OF SAW BLADE.

CUTTING CROWN MOULDING

One of the many features of your saw is the ease of cutting crown moulding. The following is an example of cutting

both inside and out side corners on

… 38 degree wall angle crown moulding.

NOTE: When cutting 45 degree wall angle crown moulding, the following procedure for inside and out side

corners is the same with the exception that the bevel position will always be at 30 degrees and the miter

position will be 35

… 4 degrees to the right or lef t.

1. Move the t able to the 31

… 8 degree right miter position and lock the t able in position.

NOTE: A positive stop is provided to find this angle quickly .

2. T ilt the saw blade to the 33

… 8 degree lef t bevel position and tighten bevel lock handle.

NOTE: A triangle indicator is provided on the bevel scale to find this angle quickly .

3. Place the crown moulding on the t able with the CEILING EDGE of the moulding against the fence, and make

the cut, as shown in Fig. 47.

Fig. 47

Fig. 48

Fig. 45

Fig. 46

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Porter-Cable 3807 User Manual Page 15