King Industrial KC-366SH Instruction Manual page 16

Operational guidelines
Arcs and Circles
Large circular and arc-shaped stock can be shaped as described in section
named Contour Edge Shaping. However, smaller sized stock requires the use of
special shaping jigs similar to those shown in Fig.42.
With the entire fence assembly removed, carefully position the jig for desired
depth-of-cut and securely clamp to the table.
It is important with the arc and circle shapes that the workpiece, prior to being
shaped, must be roughly cut to the desired size and curve of the finished piece.
Make sure that the jig curve matches exactly the workpiece curve. At all times
keep the workpiece firmly in contact with the jig while the cutter is cutting the
stock.
Caution: Never perform this type operation without a ring guard, safety collar or
similar safety device over the cutterhead.
Enclosed Edge Shaping
An enclosed workpiece edge is shaped in the same manner as an outside
contoured edge except that a starting pin is not required as shown in Fig.43.
Note: If the whole edge is to be shaped, the operator must use a pattern.
Position the workpiece on the table before starting the motor. The operator must
do the entire shaping cut by feeding the workpiece into the cutter.
Warning: Enclosed edge shaping is extremely dangerous. The operator must
be aware at all times of the direction of feed. Never perform this type operation
without a ring guard, safety collar or similar safety device over the cutterhead.
With a firm grip, ease the edge into the cutter until stopped by the collar as
shown in Fig.43. Continue to push straight in while feeding and turning the
workpiece at the same time until the cut is finished. Turn off the motor and do
not remove workpiece until the cutter has completely stopped.
Caution: Never perform enclosed edge shaping if there is less than 2" of
workpiece material all around the opening. Never perform enclosed edge
shaping if the workpiece opening is smaller, in any direction, than twice the
diameter of the cutter.
Templates
Templates must be thick enough to provide a solid bearing edge against a collar.
When constructing a template similar to the one shown in Fig.44, keep in mind
that it serves only as a guide for the cutter.
If the workpiece requires all-around shaping, the template can be constructed
from several sections pieced together as shown in Fig.45.
OPERATION
FIGURE 42
FIGURE 43
FIGURE 44
FIGURE 45