KNOVA KN RO-1313, Руководство пользователя, Страница: 11 / 32

OPERATION
TOP EDGE SHAPING (FIG. 16)
Whenever the workpiece thickness, together with the desired
depth of cut (as adjusted by the cutting-depth setting) are such
that only the top part of the edge is to be shaped (leaving at least
a 1/16”. thick uncut portion at the bottom), the pilot can ride
against the uncut portion, which serves to guide it (FIG. 16).
WHOLE EDGE SHAPING (FIG. 17)
If the workpiece is too thin or the bit is set so low that there will
be no uncut edge against which to ride the pilot, an extra board
must be placed under the workpiece to act as a guide (FIG. 17).
This “guide” board must have exactly the same contour - straight
or curved - as the workpiece edge. If it is positioned so that its
edge is flush with the workpiece edge, the bit will make a full cut
(in as far as the bit radius). On the other hand, if the guide is
positioned so that it extends beyond the edge of the workpiece),
the bit will make less than a full cut - which will alter the shape
of the finished edge.
NOTICE: The size (diameter) of the pilot that is used determines
the maximum cut width that can be made with the pilot against
the workpiece edge. (The small pilot exposes the entire bit; the
large one reduces this amount by 1/16”.) Any of the piloted
cutter bits can be used without a pilot for edge shaping with
guides.
WARNING
Always securely clamp your workpiece
and keep a firm grip on the router base with both
hands at all times. Failure to do so could result in loss
of control causing possible serious personal injury.
FEEDING THE ROUTER (FIG. 18)
The secrets to professional routing are a careful set-up for
the cut, selecting the proper depth of cut, knowing how
the cutter bit reacts in your workpiece, and the rate and
direction of feed of the router.
Router feed direction
Router feed
direction
Fig. 18
DIRECTION OF FEED - EXTERNAL CUTS (FIG. 18)
The cutter bit rotates clockwise. Feeding the bit from left to
right will cause the bit to pull the router towards the workpiece
(FIG. 18). If the router is fed in the opposite direction (right to
left), the rotating force of the cutter bit will tend to throw
the bit away from the workpiece.
This is called “Climb-Cutting”. “Climb-Cutting” may cause loss
of control, possibly resulting in personal injury. When
“Climb-Cutting” is required (e.g. backing around a corner),
exercise extreme caution to maintain control of the router.
The high speed of the cutter bit during a proper feeding
operation (left to right), results in very little kickback under
normal conditions. However, if the cutter bit strikes a knot,
an area of hard grain, or a foreign object, “Kickback” may
result. Kickback may damage your workpiece and could cause
you to lose control of the router, possibly causing personal
injury. Kickback is always in the opposite direction of
the clockwise cutter bit rotation, or counterclockwise.
To guard against and help prevent Kickback, plan your set-up
and direction of feed so that you’re always keeping the sharp
edges of the cutter bit biting straight into uncut wood. Always
inspect your workpiece for knots, hard grain, and foreign
objects.
KICKBACK
Because of the high speed of the cutting bit during a proper
feeding operation (left to right), there is very little kickback
under normal conditions. However, if the cutting bit strikes a
knot, an area of hard grain in the workpiece, or a foreign object,
the normal cutting action could be affected and cause “Kickback.”
This Kickback may cause damage to your workpiece, and could
cause you to lose control of the router, possibly causing serious
personal injury. Kickback is always counterclockwise:
the opposite direction of the clockwise cutting bit rotation.
To guard against and help prevent Kickback, Always inspect
the workpiece for knots, hard grain, and foreign objects that
could cause a kickback problem and plan the setup and direction
of feed so that the router is always moving, and keep the sharp
edges of the cutting bit continuously biting straight into new
(uncut) wood (workpiece).
WARNING
Kickback causes the power tool to jerk
back toward the user, causing possible loss of control
and serious injury. Always take precautions against
kickback as described in the operator’s manual.
DIRECTION OF FEED – INTERNAL CUTS (FIG. 19-20)
When making an internal cut, such as a groove, dado, or slot,
always try to have the guide you are using with the router (edge
guide, straight edge, board guide), on the right-hand side of
the router as you make the cut (FIG. 19).
When the guide is positioned on the right hand side of the
router, the router travel should be from left to right and
“counterclockwise” around curves (FIG. 19). This
counterclockwise action around the curve could cause “Climb
cutting”. Always be alert and exercise extreme caution to
maintain control of the router when making this type of cut
around curves.
When the guide is positioned as shown in FIG. 20, the router
travel should be from left to right and clockwise around curves.
If there is a choice, the set-up in FIG. 20 is easier to use, but
there is the possibility of “Climb Cutting” around curves. In
either case, FIG. 19 or FIG. 20, the sideways thrust of the router
cutting is always against the guide, as is proper.