DeWalt DW682 Instruction Manual page 11

biscuit size to suit most applications. After selecting the biscuit size,
set the depth adjustment knob to the corresponding size (see
Controls section). Also, be sure the fine depth adjustment is
correctly set by first testing in a scrap piece. This is extremely
important as you do not want to discover during glue-up that your
biscuit slots are not quite deep enough.
2. BISCUIT LOCATION AND LAYOUT
Generally, biscuits may be spaced and located at your discretion.
For edge joints, a good rule of thumb is to space biscuits every
6-10 inches on center. It is further recommended that biscuits be
placed so that the centerline of the end biscuits is 2-3 inches from
the end of the workpiece. When joining face frames or picture
frames where the workpiece is narrow, you may have to choose the
smaller biscuit sizes to keep from "breaking out" on the end of the
joint. Breaking out should be avoided if possible, but if not you can
assemble the joint and trim off the exposed biscuit tip after the glue
sets (see Figure 14). When working with material up to 1" thick, we
advise to use a single biscuit located in the approximate center of
the material thickness. If thicker stock is to be joined, you may
choose to use 2 biscuits across the thickness for greater strength
(see Figure 15). Biscuit locations should be marked by first
positioning the mating pieces exactly as they are to be assembled.
Next, make a mark at 90° to the joint interface across both pieces at
the desired biscuit locations (see Figure 16). See Application
section for more specific information on joint layout. The marks you
make will then be aligned with one of the center registration marks
on the tool, again, depending upon your specific application.
3. MAKING THE CUT
Prior to making any cut, be sure that all fence adjustments are set
and lock knobs are tight. Also, be sure you have selected the proper
depth setting. Clamp your workpiece firmly and align the plate
FIG 15
1" OR GREATER STOCK THICKNESS
FIG 16
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