User Manual

6
The dowel diameter should be
between 2/5 and 3/5 of the thick-
ne
ss of the wood. The table
above shows the appropriate
dowel diameters for the most
common wood thicknesses.
For corner and T-joints, the
holes
must be drilled no more
than 2/3 of the thickness of
the wood, at the most. The
remainder of the dowel, plus
2 – 3 mm space for glue, will be
inserted into the opposite side
or into the face of the board.
Therefore, you should take
care to always for example:
with wood 18 mm thick and a
dowel length of 40 mm, drill 12
mm into the surface and 28
mm plus 2 mm space for glue,
making a total of 30 mm, into
the face.
The right way to glue dowel joints
1. Always insert the drill bit
into the drill bushing before
switching on the drill.
2. Always move the drill
perpendicularly without any
lateral pressure in the drill
bushing.
3. Always move the drill
backwards and forwards
to improve the removal of
sawdust during drilling.
Always put the glue into the
face holes first, and make
sure that the dowel does not
stand out more than 2/3 of the
thickness of the wood.
Apply glue not only into the
dowel holes, but also onto the
faces of the shelves, to further
increase the firmness of the
glue joints.
Dowel markers (also known as
dowel tips) are of great assis-
tance in precisely locating the
centres of the counter-holes.
They are simply inserted into
the dowel holes already drilled.
The complete assembly is then
laid on the board to be marked,
and the tips of the markers mark
out the exact drilling points for
the counter-holes.
The right way to drill dowel joints
Wood
thickness
Dowel Ø
12 – 14 mm 6 mm
15 – 18 mm 8 mm
19 – 30 mm 10 mm
For face joints, half the length
of the dowel plus c. 2 mm space
for glue should be drilled into
each of the boards.
Dowel markers
Important measurements in dowelling
The basics
Tips and tricks
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