Operation; Edge-To-Edge Joints - Craftsman 315.175500 Owner's Manual

_h, WARNING: Always wear safety goggles or
safety glasses with side shields when operating
tools. Failure to do so could result in objects
being thrown into your eyes, resulting in possible
serious injury.
A variety of spline joints can be made using your
Biscuit Joiner. The number and size biscuits needed
for each joint depends on the thickness of the wood
and the length of the joint, in general, the small R1
biscuits should be used for miter cuts in small, thin
materials. The larger biscuits should be used for
edge-to-edge joinery.
When joining thick materials, stack two biscuits, one
above the other. For example, joining 2 in. x 4 in.
dressed lumber. See Figure 9. When joining even
thicker materials, use additional biscuits, stacked above
each other.
When making edge-to-edge joints the more biscuits
you use, the stronger the joint will be.
The following sections illustrate how to make various
spline joints using your Biscuit Joiner.
EDGE-TO-EDGE JOINTS
See Figures 7 and 8.
Edge-to-edge joinery is one of the most basic and
easiest joints to construct. In general, two basic
adjustments have to be made for all Biscuit Joinery
applications. One is the depth of cut and the other is
the location of the cut.
HOW TO MAKE EDGE-TO-EDGE JOINTS
• Unplug your Detail Biscuit Joiner.
• Prepare the workpieces by laying them side by
side on a workbench in the order in which they will
be assembled.
• Using a square, determine the location of each
biscuit spiine joint and mark the center of each joint
by drawing a line across each workpiece. Mark
edges 1 in. from the ends of workpieces. The joint
will be stronger if you use multiple biscuits placed
close together.
• Set fence angle at 90 °.
• Loosen height adjustment knobs, then pull and
slide the fence up or down until the indicator point
is aligned with the desired dimension on the scale.
Remember: The scale indicates the height of the
fence from the center of blade.
• Tighten height adjustment knobs securely,
• Select the correct depth of cut setting to match the
biscuit size you are planning to use. We suggest
that you make a test cut in a scrap piece of wood
from the same workpiece if possible.
• Clamp workpiece securely so it will not move
during the cut.
• Plug your Biscuit Joiner into power supply and
prepare to make your first cut. Grasp and hold your
Biscuit Joiner securely.
• Place the fence against the board and align the
indicator marks on the fence with the centerline
mark(s) on the board. See Figure 7.
INDICATOR
MARK(B)
CENTERLINE
MARK(S)
LINEOF CUTWINDOW
TOPVIEWOF DETAILBISCUITJOINER Fig. 7
• Depress the switch trigger and let the motor build
to its maximum speed, then gradually push Biscuit
Joiner forward to extend the blade into the wood.
• When the base assembly bottoms out against the
depth of cut adjustment knob setting, pull back
releasing pressure on the spring. Blade will retract
from biscuit slot.
• Repeat this procedure for all desired biscuit slots
and cutting the slots in the reating workpiece.
• Once all biscuit slots have been cut, place a biscuit
in each joint and dry assemble the workpieces.
Make sure each joint lines up and fits.
• Finally, disassemble the workpieces and place a
bead of glue in each slot. Also, spread a bead of
glue over the entire surface of the joint. Reinsert
the biscuits and assemble the workpieces. See
Figure 8.
CENTERLINEMARKS
" . IT(S)
_-J_J_ BISCUITSLOT(S)
f / EDGE-TO-EDGE JOINTS
Fig. B
• Clamp workpieces together until the glue sets up.