Craftsman 17539 - 6.0 Amp Plate Jointer Operator's Manual page 18

MITER JOINTS
See Figures 18 - 21.
There are two types of miter joints that can be made using
biscuits: flat miters and edge miters. Fiat miters are used
when making picture frames. Edge miters are used when
making boxes or things where you don't want to show the
end grain of the wood.
MAKING FLAT MITER JOINTS
See Figure 18.
• Unplug the biscuit joiner.
• Place the pieces of wood to be joined on a level work-
bench.
• 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.
• Clamp the workpieces together until the glue sets up.
MAKING EDGE MITER JOINTS
See Figures 19 - 21.
• Unplug the biscuit joiner.
• Place the pieces of wood to be joined on a level work-
bench.
• Mark the centerline of the joint on each board.
•edges coming, on
Using a square, draw a through Z,z/_i"i_,
the center of each joint perpendicular to the mitered
BISCUIT
MARK(S) CENTERLINE
MARK(S)
Fig. 18 Fig. 19
• Set the fence angle at 90 °, set the fence height at the
desired dimension on the scale, select the correct
depth of cut setting for the biscuit size you plan to use,
and clamp the workpiece securely.
• Align the indicator mark on the fence with the center-
line on the workpiece.
• Plug the biscuit joiner into the power supply and pre-
pare to cut the slot.
• Depress the switch trigger to turn on the biscuit joiner,
then push it forward to extend the blade into the wood.
• When the base assembly bottoms out against the
depth of cut adjustment knob setting, pull back, releas-
ing pressure on the spring. The blade will retract from
the biscuit slot.
• Repeat this procedure for cutting the mating slot and
all required miter joint slots.
• Once all slots have been cut, place a biscuit in each
joint and dry assemble the workpieces. Make sure
each joint lines up and fits.
• When making edge miter joints with workpieces that
have different thicknesses, clamp the pieces securely
to a workbench with the long sides up. This will assure
that the outside surfaces will match.
• Loosen the locking adjusting knob and set the fence
angle at 135 °.
• Set the fence height at the desired dimension on the
scale by rotating the height adjustment knob.
• Tighten the locking knob securely.
18