Pattern Work - Grizzly G0608X Owner's Manual

Pattern Work

When using a pattern, you use a rub collar to
control the depth of cut. Refer to Rub Collars on
Page 30 for additional information.
The pattern is usually used when the entire edge
is to be shaped or when many duplicate pieces
of the same pattern are needed. Pattern work is
particularly useful when rough cutting irregular
shapes oversize and then freehand shaping the
edge in a two-step operation. A pattern can be
incorporated into a fixture by way of adding toggle
clamps, hand holds, or other safety devices.
You have greater flexibility when choosing the cor-
rect diameter rub collar for pattern work than for
non-pattern work. Referring to Figure 41, you will
notice that the position of the pattern determines
the depth of the cut. Your pattern size is depen-
dent upon the inter-relationship of the cutting
circle, the desired amount of material removed
and the rub collar size. The cutting circle is the
constant in the equation, while the pattern and the
rub collar size are the variables. Changing one or
both of these variables will change the amount of
material removed. Planning ahead, you can best
decide which rub collar is best suited for your
application.
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Figure 41. Illustration of pattern work with a rub
collar.
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When making a pattern, jig, or fixture, follow
these guidelines:
•
Use a material that will smoothly follow the
rub collar or fence.
• Secure your workpiece with toggle clamps on
the three sides that will not be cut, or fasten
the workpiece to the jig with wood screws.
•
Make sure all fasteners and clamping devic-
es do not protrude through the workpiece and
will not come in contact with the cutter during
the operation.
•
Make the jig stable by using proven methods
and materials, and fasten the hand holds for
the operator's comfort and safety.
• Design your fixture so that all cutting occurs
underneath the workpiece.
•
When calculating the correct depth of cut,
always consider the cutting circle and rub col-
lar diameters.
• Make sure the workpiece rests flat on the
table and not on the fixture.
•
Remember that there is tremendous cutting
force exerted on the workpiece. Fixtures
must be solid, stable and the workpiece must
be firmly secured.
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Use care in designing and making fixtures.
Clamps and screws cannot touch the cutter,
and the fixtures must be stable in use. The
workpiece must rest on the shaper table
and not on the fixture. The workpiece must
be fixed securely to the fixture.
G0608X Extreme Series Tilting Spindle Shaper
NOTICE