Black & Decker 3680 12" Compound Miter Saw instruction manual Cutting Base Molding

Cutting Base Molding

ALWAYS MAKE A DRY RUN WITHOUT POWER BEFORE MAKING ANY CUTS.

Straight 90˚ cuts –Position the wood against the fence and clamp it in place as shown in Figure 19. Turn on the saw, allow the blade to reach full speed and lower the arm smoothly through the cut.

Cutting base molding up to 3-7/8” high vertically against the fence

Position molding as shown in Figure 20. All cuts made with the back of the molding against the fence and bottom of the molding against the table.

INSIDE CORNER:

Left side:	1.	Miter left 45°
	2.	Save left side of cut
Right side:	1.	Miter Right 45°
	2.	Save right side of cut
OUTSIDE CORNER:
Left side:	1.	Miter right at 45°
	2.	Save left side of cut
Right side:	1.	Miter left at 45°
	2.	Save right side of cut

Material up to 3.9" (3-7/8)" can be cut as described above. For wider boards [up to 5.5" (5-1/2")] sev- eral minor concessions must be made.

When cutting a board between 3.9" (3-7/8") and 5.5" (5-1/2") in width the guard will hang up on the work piece. If this occurs, simply place your right thumb on the upper side of the guard and roll the guard up just enough to clear the work piece, as shown in Figure 23. Once you have cleared the work piece, you can release the guard and it will continue to open as the cut progresses.

When mitering to the right side of a base molding wider than 3.9" (3-7/8") standing vertically against the fence as in Figure 20, the saw can only cut through the board up to 1 inch from the end of the board. Trying to cut more than an inch will cause the saw’s gear case to interfere with the work piece. If you want to cut base molding between 3-7/8" and 5-1/2" wide vertically see the following the direc- tions.

Cutting 3-7/8"– 5-1/2" base molding vertically against the fence

Position molding as shown in Figure 20. All cuts made with the back of the molding against the fence.

INSIDE CORNER:

Left side: 1. Position molding with bottom of molding against the table of the saw

2. Miter left 45°

3. Save left side of cut

Right side: 1. Position molding with top of the molding resting on the table of the saw

2.Miter left 45°

3.Save left side of cut

OUTSIDE CORNER:

Left side: 1. Position molding with bottom of molding against the table of the saw

2.Miter right 45°

3.Save left side of cut

NOTE: If the cut must be made somewhere other than 1" from the

end of the molding: cut off the molding at 90° approx. 1" longer than your final length then make the miter cut as described above.

Right side: 1. Position molding with bottom of the molding against the table of the saw

2. Miter left 45°

3. Save the right side of cut

A third method of making the cut necessary for sketch A (Figure 15) is to make a 0˚ miter, 45˚ bevel cut. Your saw can cut a bevel 7 7/8” wide.

Cutting Base Molding Laying Flat and Using the Bevel Feature

All cuts made with the saw set at 45˚ and 0 miter.

All cuts made with back of molding laying flat on the saw as

Figure 21

Figure 22

Figure 19

Figure 20

shown in Figures 21 and 22.

INSIDE CORNER:		Figure 23
Left side:	1. Position molding with top of molding against the
	fence
	2. Save left side of cut
Right side:	1. Position molding with bottom of the molding
	against the fence
	2. Save left side of cut
OUTSIDE CORNER:
Left side:	1. Position molding with bottom of molding against
	the fence
	2. Save right side of cut

Right side: 1. Position molding with top of the molding against the fence

2. Save right side of cut

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