15.7 USE OF THE REFERENCE PIN FOR SETS OF HOLES ON LARGE-SIZED PIECES ( OPTIONAL )
T
he use of the extension fence for large-sized pieces can be complicated. Our machines are provided with a
reference pin that can be used for the repetition of a set of holes on a large-sized piece, in which the axial dis-
tance between the first drill and the last is higher than those obtainable with the boring machine used. The ref-
erence pin is aligned with the axis of the drills and it fits into a slot under the machine table when the first set of
holes has been bored. To go on boring, the reference pin can be used again by turning the knob to release the
spring that allows the reference pin to come out. The reference pin must be inserted in one of the holes that
have just been bored to allow repetition of the set of holes.
LONGITUDINAL POSITION OF THE EXTENSION FENCE ( OPTIONAL )
To use the extension fence longitudinally you need to fasten it to the back stop profile using the handles pro-
vided.
Follow the procedure described below:
− Turn the side squares over to bring them out of the table, making sure they are under the work table.
− Place the extension fence over the back stop profile as illustrated in the figure below.
− Fasten the extension fence to the back stop profile clamping the handle (1) provided with locating pin.
− Finally line up the extension fence to the boring line clamping the other handle (2).
− It is now possible to use the mobile stops to co-ordinate the relative positions of the sections to be bored on
long pieces.
− Add a suitable support (i.e. a stand) for the fence and for the panel to be bored.
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