Robert Bosch GmbH
Pure nature chair
DIY pure nature chair
A unique item of
furnishing
With its distinctive design
this chair will give your
room that certain flair and
fit naturally into every TV
or reading corner.
1
Introduction
Relaxation is the name of the game. Lovers of wood and natural materials
will find the rest and relaxation they deserve in this self-constructed natural
armchair and by using timber from sustainably managed forests they will
achieve sustained relaxation. With its distinctive design this natural chair gives
rooms that certain flair and fits naturally into every TV or reading corner. But
first it has to be made, and that requires both DIY skills and practice. A unique
and timeless home accessory will reward those who have this craftsmanship.
Required power tools:
> PSB 18 LI-2 Ergonomic cordless combi drill from Bosch
> PCM 8 S mitre saw from Bosch
Other accessories:
> Screw clamps, set square
> Wood drill bit (4 mm) for pre-drilling
> Wood drill bit (10 mm) with depth limiter/limiting ring
> Angle bevel (for measuring and transferring angles)
> Dowel marker
Detailed material list:
pcs
Designation
Length
1 bunch/
3
1x bunch of willow rods* 90 cm
(approx. 90 cm long) or
3x willow panels* (90 cm
x 90 cm)
90 cm
5
Pieces of square timber
(2 pieces of wood each
for the side panels and
3.8 cm
250 cm
Width
Thickness Material
Willow
3.2 cm
Oak
Robert Bosch GmbH
1 piece of wood for the
cross struts)
1
Wood glue
3
Rods
1m
1
MDF board for the plan
outlines and to help with
the gluing
100 cm
1 cm
Wood
100 cm
Scrap wood to help with
the gluing
2
Marking out and cutting the wood to size
3
Establishing the angles
4
Cutting the bevels to size
Ambitious projects like the natural chair require elaborated planning. So the
first thing you need to do is print out the construction plan. The outlines are
then marked out on the MDF board using a set square and pencil. The joints
between the individual parts are numbered on the construction plan. Note
these numbers on the MDF board too. You will need to work with the greatest
precision because this step is the basis for all the others. The scale, the angles
and the numbering must be absolutely exact if the finished chair is to be
cleanly worked.
The two pieces of square timber for the first side section are now sawn to
size, starting with the longest part, the strut for the foot of the chair. Mark the
dimensions from the construction plan on the square timber and saw off the
surplus wood at a right angle. Continue with the next longest strut and carry on
until the remaining wood or the second piece of square timber is used up and
all the parts have been cut to size.
Then saw from another piece of square timber the four cross struts as per
construction plan.
Tip: To define the plans, write the number from the construction plan about
2 cm from the end of each part so that it isn’t lost when you do any further
sawing.
The next step is to establish the right angles for the joints between the
individual struts. This is where the angle bevel comes into its own. It is placed
at the joints between the individual struts and aligned to the angle marked up
on the MDF board (see photo). When the angle is set precisely, tighten the
screw so that bevel and angle do not slip out of position.
The bevels marked on the wood must now be sawn precisely. The Bosch
PCM 8 S mitre saw with slide function is the right tool for this job. Its laser
is a perfect sawing aid to ensure precise cutting. Once all the bevels have
been sawn to shape, position the finished struts on the MDF board as per
construction plan.
Robert Bosch GmbH
5
Cutting the dowels to size
6
Drilling the dowel holes
7
Gluing together the square timber
8
Assembling the chair
In the next step the dowels are cut to length: Cut the wooden rods into lengths
of about 5 cm to ensure a strong connection.
The square timber, sawn into shape, is now made up into a side section. First
pre-drill two holes for the dowels on each joint with a thin drill bit and then
open them up with a 10 mm drill bit and a depth limiter set at about 2.8 cm.
This is especially easy to do with the Bosch PSB 18 LI-2 Ergonomic. When
drilling and screwdriving, your hand will automatically fit snugly in the grip
recess, transferring the power optimally. Drill the holes in the centre of the
wood. Continue with the dowel holes for the cross struts that will later join the
two side sections, doing so at the points marked in the construction plan.
The going now gets tough. The pieces of square timber must now be glued
together as accurately as possible. Put the prepared parts together with the
dowels and a little glue. Tip: A do-it-yourself gluing aid works wonders for
stability.
Remove the surplus glue and leave the side section to dry for about two hours.
For good looks, sand the transitions flush and chamfer the edges.
While the first side section is drying, repeat steps 1 to 7 for the second side
section. To ensure that the dowels for the cross struts are in exactly the right
place, mark the holes in the first side section with a dowel marker and transfer
the position to the counterparts.
The chair is now slowly taking shape. The four cross struts are placed in their
marked positions on the chair as per construction plan: two on the backrest,
one on the seat and one to stabilise the foot. They are all fixed to the side
sections with dowels and wood glue and then clamped to let the glue set.
Finally, the frame is filled with willow rods to provide a stable seat and
backrest. If required, the wicker can be cut to the right length first, using the
Bosch PCM 8 S.
Tip: If the chair is to be used outdoors, it is advisable to treat it with a wood
preserving varnish.
Job done. Fetch a glass of wine and a good book and lean back in comfort.
There is no longer any reason for not taking it easy this evening – unless a
second pure nature chair is urgently required.
Bosch does not accept any responsibility for the instructions stored here. Bosch would also like to point
out that you follow these instructions at your own risk. For your own safety, please take all the necessary
precautions.