11
Palmgren Operating Manual & Parts List
84115
OPERATION (CONTINUED)
INSTALLING THE PATTERN KNIVES
Refer to Figure 25.
Steel pattern knives are
1
/
4
″
thick. The pattern knives are installed in
the same manner as the molding cutters except that the
1
/
4
″
thick
spacers are used.
NOTE:
For each setup only two pattern knives are mounted on the
cutterhead of this planer/molder.
•
The planer/molder will accept multiple pattern knives or mold-
ing cutter setups. Figure 25 shows the top and bottom knives
of the tongue and groove knife set.
RELIEF KNIVES
Many of the
1
/
4
″
pattern knives are supplied with relief knives. The
relief knives are used to cut a relief on the back side of the mold-
ing so that the molding will better fit irregular surfaces such as
plastered walls.
Always cut the relief first before molding the workpiece, so that
there is a flat surface for the workpiece to slide on during the
molding operation. If the molding is done first, the workpiece will
not lie flat on the feed table and therefore the relief cannot be cut.
AUXILIARY TABLE
Refer to Figures 26, 27 and 28, pages 11 and 12.
Some of the cutting bits and pattern knives are designed to cut all
of the way through the workpiece and
1
/
16
″
beyond the workpiece.
An auxiliary table with guide fences must be fabricated to perform
molding operations.
This produces a smooth edge and final sizing of the workpiece.
When using these bits or knives, an auxiliary wood table must be
mounted on the table to prevent damage to the table and the bits
or knives. The planer/molder is provided with mounting hardware
to accommodate an auxiliary table.
The auxiliary table should be made from smooth particle board or
plywood to provide a smooth surface for the workpiece to slide on.
GUIDE FENCES
When molding, the workpiece must be guided into the molding
cutter bits or knives properly in order to produce the desired
shape and size molding. Using properly adjusted guide fences
assures the workpiece passes the molding cutters/knives in the
same position using multiple passes. Figure 26 shows an auxiliary
table with guide fences mounted to the planer/molder table.
•
The mounting bolt passes through the auxiliary table and fixed
guide fence, through space between table and extension table,
and clamps to lip on the base.
•
Figure 28, page 12 shows dimensions of the auxiliary table and
guide fences.
Figure 25 – Multiple Setup, Tongue and Groove Knives
1
/
4
″
Thick
Spacer
Groove
Pattern
Knife
Tongue
Pattern
Knife
Gib
Figure 24 – Note Orientation of Screw and Gib with
Respect to Slot
Screw
Cutter
Gib
Mounting
Bolt
Movable Guide
Fences
Fixed
Guide
Fence
Figure 26 – Auxiliary Table with Guide Fences
Extension
Table
Base
Clamp
Figure 27 – Auxiliary Table Clamp Attaches to Base