Installation Guide

TECHNIQUES
TECHNIQUES
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• The GRR-RIPPER 3D PUSHBLOCK
system is designed to glide along the
rip fence of a table saw, so the rip fence
must be parallel to the saw blade in
order to maintain the parallel feed.
• The saw blade should be raised just
enough in height to clear the gullets
from the top surface of wood pieces;
normally about 1/4” to 3/8”. Pay extra
caution on workpieces that are not
equal in thickness such as tapered stock.
The tunnel has a clearance of 15/16”
in height.
• The saw blade must pass through the
adjustable tunnel and in between the
legs for maximum safety. Visually check
the Saw Blade Tunnel before turning
on your saw to make sure that the saw
blade will not cut into any component
of the GRR-RIPPER.
• When using a single GRR-RIPPER, both
hands should be used on the tool. Place
one hand in the inclined position and
grip the Handle (1). Place the other on
the top of the Main Body (2) to provide
added pressure against the rip fence,
additional forward feeding and firm
downward pressure on the workpiece.
WARNING: NEVER feed stock using
bare hands when using the GRR-RIPPER.
• The Handle (1) can be secured at an
angle in relation to the Side Legs (see
Figure 17) an automatic pressure will be
exerted against the fence when the tool
is pushed forward.
• For best cutting results, use one non-
stop feed from start to finish - do not
pause during the cutting operation.
Push the workpiece completely clear
of the saw blade, stop the motor, and
wait for the saw blade to come to a
complete stop before releasing pressure
from the workpiece.
• The non-slip pads are molded from
a thermal plastic that will slightly
compress when downward pressure is
applied. When setting the height of the
Balance Support (6), it is best to set the
non-slip pads over the workpiece, put
normal downward pressure from the
Handle (1), lower the Balance Support
(6) until it fully contacts the table saw
top, then secure the Balance Support
(6) in that position before releasing
pressure from the Handle (1). Double-
check the setup by applying downward
pressure on the tool with one hand and
slightly pulling the workpiece under the
tool. If not enough contact pressure
is either in the front or rear, adjust the
Balance Support (6) accordingly.
• Depending on your table saw model,
the GRR-RIPPER system should be
placed about 1“ to 4” from the trailing
end of the workpiece, otherwise, the
tool will be off the table saw top at the
rear before the workpiece will be clear
of the saw blade.
• If workpiece is longer than 16”, the
use of two GRR-RIPPER systems is
recommended for connecting two
GRR-RIPPERs or use the “leap-frogging”
technique for cutting stock of unlimited
length.
• If the width of the cut is between 1/4”
to 5/8” on the Inside Cut, use the 1/4”
Side Leg (5) on the right against the
rip fence. If the width of the cut is less
than 1/4”, it should be obtained from
Outside Cut as shown in Figure 15 on
Page 16. One advantage of using the
GRR-RIPPER for cutting thin strips over
the conventional push block method
is the width of your prepared stock
on the Inside Cut area is substantially
reduced. Yield is greatly increased by
saving material, thus reducing costs.
Most importantly, the saw blade is
always within the tunnel, which provides
protection for your fingers.
• For a wider Inside Cut that is beyond
the limits of the GRR-RIPPER system,
wooden spacers of various widths can
be added to the Side Leg against the
fence (see Figure 3). You may drill a
couple of counter bored holes (5”
center-to-center) for 10-32
pan head screws and secure it to
the brass inserts on the Side Legs.
Alternately, you can use #8 pan head
wood screws from the inside wall of the
1/2” Side Leg (4).