laguna S45T, Руководство пользователя, Страница: 56 / 80

Page 56 of 60
4.2 POSITION OF COLLARS
When shaping with collars, the collar must have sufficient
bearing surface, as shown in Fig.4.4. Also the work must be
fairly heavy relative to the cut being made. Under no
circumstances should a short, light work-piece be shaped against
the collars, as shown in Fig. 4.5.
The collars may be used in any of the following positions: above,
below, or between the cutters.
1. When the collar is used below the cutter, as shown in Fig.4.6,
the progress of the cut can be seen throughout the operation.
Fig. 4.4
However, any accidental lifting of the work will gouge the wood
and ruin the work-piece.
2. When the collar is used above the cutter, as shown in Fig. 4.7,
the cut can not be seen, but this method offers an advantage in
that the cut is not affected by light variations in the thickness of
the stock. Also, accidental lifting of the work-piece will not
gouge the work-piece; simply repeat the operation to correct the
mistake.
3.
Using the collar between two cutters has the advantages and
Fig. 4.5
disadvantages of the first two procedures, and is frequently used
where both edges of the work are to be molded, see Fig.4.8.
《
NOTE
》
It is advisable to place the cutter as low as possible on
the spindle to reduce spindle deflection and ensure the
best possible finish. Also make sure that the contacting
surfaces of the cutter are smooth, clean and without
dents.
Fig.4.6
Fig.4.7 Fig. 4.8
4-2