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Auxiliary Fence and Push
Block
An auxiliary fence must be used if the blade
is positioned between 1/2 inch and 2 inches
from the fence during ripping, An auxiliary
fence must always be used with a push block.
Their purpose is to keep your hands away
from the saw blade° They are also needed
when you use the molding head.
Make an auxiliary fence when:
e the blade is to be placed 2 inches or
less from the fence;
®an existing auxiliary fence is not the
same width all along its length;
® the existing auxiliary fence has been
damaged by blade contact.
To make auxiliary fence:
io Use one piece of 3/8 inch plywood and two
pieces of 3/4 inch plywood.
2_ Cut the 3/8 inch plywood to 40 inches long
by 5 1/2 inches wide,
3, Cut one piece of 3/4 inch plywood to 40
inches long by 3 5/8 inches wide
4, Cut other piece of 3/4 inch plywood to 40
inches long by 2 1/4 inches wide.
5o Glue the two 3/4 inch plywood pieces to-
gether so that they line up square (flush) on
an edge_
6. Glue the 3/8 inch plywood piece at right
angle to and flush against the 2 I/4 inch wide
3/4 inch plywood°
7. Reinforce with nails.
3/8" Plywood
This Face and This
Edge Must Be Parallel
3/4" Plywood
Note: All Dimensions in Inches
Fig, 130 Auxiliary Fence Dimensions
Push Block
Push blocks are always used with an auxiliary
fence.
Make a push block when:
e the blade is to be placed 1/2 inch to 2
inches from the fence;
e you make the first auxiliary fence;
o existing push block has been damaged°
To make a push block:
1. Use one piece of 3/4 inch plywood and one
piece of 3/8 inch plywood.
2_Cut the 3/4 inch plywood to t2 inches long
by 5 inches wide.
3. Cut a triangular piece off each of two
corners of the 12 inch side by marking with a
pencil in and down from the corners 1 I/4 in-
ches and cutting along the diagonal formed
by the points.
4. CUt the 3/8 inch plywood to 12 inches long
by 5 1/8 inches wide.
64
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