Joining - Procedure - Festool DOMINO DF 500 Manual De Instrucciones

14
chine and DOMINO dowels are based on
these averages. If a lateral offset of approx.
0.03 mm - 0.04 mm occurs when two work-
pieces are joined together, you have the op-
tion of replacing the stop latches (2.4) fi tted
on delivery with correction stop latches. These
latches are 0.15 mm narrower and reduce the
lateral clearance of the dowel holes in relation
the edge of the workpiece (see "Changing the
Stop latches").
Getting Started
Prior to processing the fi nal workpiece, it is
advisable to optimise the dowel-hole depth,
width and diameter using a sample work-
piece.
Because the Domino system is a form of the
classic mortise and tenon joinery, it should
follow much of the same guidelines of mortise
and tenon joinery. Here are some guidelines
to assist you in making your choices:
• When the strength of your workpieces is
comparable to the strength of the Domino
tenon (e.g. general hard woods) then the
thickness of the Domino tenon should be
approximately 1/3 the thickness of the
workpieces.
• It is acceptable to use a tenon that is
slightly thicker than 1/3 when the width
of the Domino tenon is relatively narrow
compared to the width of the joint. This
is why 8mm Domino tenons are the most
common for joining ¾-inch lumber.
• For softer woods, such as pine, the joint
will be stronger when the tenon is 1/3 or
slightly less.
• For plywoods, especially low-grade con-
struction plywoods, the Domino tenon is
much stronger than the surrounding wood,
so it is best to maximize the strength of
the substrate by minimizing the thickness
of the tenon.
Domino Tenon Placement Guidelines
There are no steadfast rules on where tenons
should be placed, especially when they are
used for alignment purposes. For edge joining
boards, a typical placement might be 6 to 8
inches apart.
However, when tenons are used to strengthen
a joint, you might be tempted to place the
tenons too close together. This can actually
weaken the joint by removing too much of
the substrate material.
• A wide mortise weakens the substrate, so
it is better to have several narrow mortises
with uncut space in between, than it is to
have a single wide mortise with several
tenons side-by-side.
• When placing several tenons close together,
leave at least twice the tenon thickness be-
tween mortise holes. As a general rule, this
means the minimum tenon spacing should
be about 10 mm to 20 mm, but they can
be spaced much wider.
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16
• When creating stacked mortises for extra
thick lumber, an extension of the "1/3 rule"
mentioned above still applies. Specifi cally,
the distance between mortises, and the
distance between a mortise and the wood
surface should all be equal to (or larger
than) the thickness of the tenon.
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17

Joining - Procedure

Proceed as follows to create a dowelled
joint:
– Select a Domino dowel and insert a match-
ing jointing bit in the Domino dowel joint-
er.
– Set the jointing depth. The jointing depth
must be at least 3 mm smaller than the
workpiece thickness so that the dowelled
joint is supportable.
– Set the jointing height to correspond to the
workpiece thickness.
18.1
18.2
1
1
– Mark the areas on the workpiece that be-
long together [18.1] so that you will be able
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