Changing Speeds - Grizzly G0608X Owner's Manual

Most cutters are designed to rotate counterclock-
wise and mill the stock from underneath keeping
the cutter away from the operator and preventing
tear out.
Incorrectly feeding stock—feeding WITH the
rotation of the cutter—creates a potentially
uncontrollable feed situation that may pull
the stock from your hands and draw your
hands into the cutter. Always check the
direction of the cutter rotation before any
shaping operation. Always feed the stock
opposite to the cutter rotation.
Some cutters are designed to shape the top of the
workpiece. However, this method creates a hazard
to the operator. Using the FORWARD/REVERSE
switch, you can mount the cutter upside down,
reverse the feed direction and cutter rotation, and
mill the workpiece safely from the bottom.

Changing Speeds

The Model G0608X operates at speeds of 3900,
5000, 7200, and 9400 RPM.
Here are a some tips to keep in mind when select-
ing a speed for your workpiece:
• Use scrap stock to find the right cutter speed
and feed rate so that the resulting cut is
smooth and requires very little sanding to fin-
ish.
• Reduce cutter speed or feed rate if your
workpiece becomes glazed or burned.
• Increase cutter speed or feed rate if your
workpiece shows a rough or washboard sur-
face.
• Use slower speeds for larger cutters because
the knives on the outside of the cutter rotate
faster on larger cutters than on smaller cut-
ters for the same spindle speed (see Figure
23).
-24-
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Figure 23. Relative speeds of cutter knives at
the same spindle speed.
Note: Since the cutter is mounted on the
spindle, the terms spindle speed and cutter
speed are often used interchangeably.
The speed of the cutter is changed by changing
the V-belt alignment between the motor pulley
and the spindle pulley (see Figure 24).
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Figure 24. V-belt positions for different speeds.
G0608X Extreme Series Tilting Spindle Shaper
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