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South Bend Tools
For Machines Mfd. Since 3/21
Model SB1119/SB1120
-41-
A C C E S S O R I E S
7.
Drill countersunk mounting holes in zero-
clearance fence so fasteners from split fences
can be used to secure it to fence supports in
the same manner.
Note:
Drilling these holes is a two-step
process. Drill first holes all the way through
board with a diameter little larger than
shaft of mounting screw. Drill second holes
halfway through boards with a diameter
little larger than screw head. Drill these
second holes deep enough that screw heads
will be well below surface of board.
8.
Secure zero-clearance fence to fence
mounting brackets, check for proper
clearance, then run test piece through cutter
to verify results.
Making Featherboards
Featherboards flex with minor height or width
variations from stock as it passes through.
Because of the consistent pressure featherboards
place on the stock, cuts are more consistent,
the risk of kickback is greatly reduced, and the
operator's hands do not need to get near the
cutter to maintain feeding pressure. If a kickback
does occur, featherboards will also slow down or
stop the workpiece.
Figure 63 shows the dimensions of a basic
featherboard. The ultimate size is flexible and
should be built around the size of stock you are
shaping. The fingers can be cut with a bandsaw
or table saw.
Drill or rout hole for
T-slot mounting
Cut fingers
1
/
8
"-
1
/
4
" thick
30°-45°
15"-18"
4"-6"
3
/
4
"
Wood
stock
4"-6"
Figure
Figure 63. Basic featherboard construction.
. Basic featherboard construction.
To install a featherboard, feed a piece of stock
halfway through the machine, then turn the
machine OFF. Place the featherboard against
the stock so all the fingers touch the edge of the
stock, then use T-slot mounting hardware to
secure the featherboard. For best results, place
featherboards just before and just after the
cutter.
IMPORTANT:
Cuts made across the grain
result in weak fingers that easily break when
flexed. When made correctly, the fingers should
withstand flexing from moderate pressure. To test
the finger flexibility, push firmly on the ends with
your thumb. If the fingers do not flex, they are
likely too thick (the cuts are too far apart).
Содержание SB1119
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