24
HOW TO MOLD
1.
A
sub-plate
made of knife millable material will be needed on any job where the knife
is designed to cut below the bottom of the stock. This type of knife will hit the base of
the machine if a sub-plate is not used. An example of this situation would be the
molding of half or quarter rounds .
2.
If the knife comes close to the base of the machine, such as the bottom knife of any
crown or bed moldings, a
sub-plate
should be used to prevent damage in case of
accidental depression of the head, which would plunge the knife into the base
3.
The GS1 guide system has a
sub-plate
built into it, including bed extensions, a fixed
guide, flex guide, and ratchet handles. When using the sub-plate, always remember
to add its thickness to the stock thickness when setting machine height.
4.
Stock height
should be uniform in size and to within 1/32” of finished molding size.
5.
Stock width should be uniform and to finished molding size. Saw ripping to width will
not make the stock uniform enough
for smooth flow through the guides
, and thus,
will not result in a satisfactory molding. We recommend that all stock be planed in both
width and height to finished molding size before setting up to do the profile.
6.
When
tightening the knives
, push them firmly against the lip and sideways against the
bolts in the direction of the tube side of the machine for an exact profile match up. Hold
secure while tightening bolts.
7.
As you become familiar with the machine and its use, you may want to make some
custom guides
to suit your specific applications.
8.
When running a
tongue and groove
, pre-inspect the stock for cupping and ensure
that you can guarantee your stock is uniform in size. Good quality stock is required
in order to join the tongue and groove.
9.
Some profiles are too deep for use on the W&H Molder. In some cases you can
rotate the profile into a flatter position if it will reduce the depth of cut to less than
¾”. The “
V-Block
” technique is used in such a case. A knife must be custom made
for “V-Block” use.