4. BILL OF MATERIAL
- Bottle b’twin
-Plastic tube
-Safety glases
-Ruler
-USB-stick
-PC with drawing software
-Multitool
-Pencil
-Round file
-Laser cutter
-Selfmade fixation mold
DRINKBEKER 1.7
8
2
2
5. 1 DESCRIPTION make reference lines
on the bottom of the bottle. The lines should
devide the circumference in areas of 3cm width.
This is the area that can be lasered properly on a
curved object, with a similar diameter. For the
B’twin bottles (as shown) this corresponds to a
division of the bottom in 8 parts of 45°.
DRINKBEKER 1.7
None
2 minutes
Ruler and pencil
Bottle B’twin
1
None
6. 2 DESCRIPTION make a support
structure for the bottle. The support structure
should keep the bottle parrallel to the table and
should have a fixed location indicator. The
support stand allows you to turn the bottle
according to the guidelines, made in a previous
step. The stand is important if you want to work
accurate with the laser cutter.
BADMINTON 1.7
none
5 – 10 minutes
Belt saw, pencil and glue
none
none
none
7. 3 DESCRIPTION design the stencil you
want to print on the bottle. Make sure the
drawing is a vector drawing; Most programs for
laser cuttings require this.
The stencil’s length should be the circumferende
of the bottle minus some space buffer. We
devided our stencil in areas of 3cm wide, this is
the working range for the laser on the curved
object. When exporting the drawing each of
these small areas should be exported as a
different file. Number these areas, so you don’t
make any mistakes when printing them with
the laser cutter.
To avoid that the stencil interfere with the
logo’s of the bottle, we included some blank
areas .
DRINKBEKER 1.7
Example pattern
30 minutes
PC and creativity
Not applicable
None
none
8. 4 DESCRIPTION it is best to experiment
with a spare bottle to check the settings for the
laser. We set the laser on engraving and worked
with the speed on 80% and the power on 20% of
its maximum. The material thickness of the
bottle is approximately 1mm. These settings will
differ from laser to laser.
We start printing the stencil made. After each
section the bottle has to be turned and the
next partition, of the drawing made, has to be
loaded and printed.
Make sure that, when you are turning and
aligning the bottle, you do not move the stand.
This will result in a bad alignement.
DRINKBEKER 1.7
None
10 – 45 minutes
Laser cutter and selfmade fixation mold
Bottle B’twin
None
€ 5 – 15
9. 5 DESCRIPTION remove the silicone
sealing from the cap. In the middle of the cap of
the bottle there is a cilinder; this cilindre needs
to be removerd. The easiest way to do this is to
cut its legs off just above the edge.
The result should be as shown on the left of this
picture.
DRINKBEKER 1.7
None
5 minutes
Multitool with little grinding wheel
Cap of bottle B’twin
None
None
10. 6 DESCRIPTION make small inden-
dations in the lower side of the tube.
Experiment with the spindle speed of the
multitool. Control which gives the least burrs on
the plastic.
These indendations are necessary to avoid that
the tube sucks itself vacuum to the bottom of
our bottle.
DRINKBEKER 1.7
None
3 – 4 minutes
Safety glasses and multitool
Plastic tubee
1
None
11. 7 DESCRIPTION mill out most material
out of the silicone sealing with the multitool.
The resulting diameter should be slightly
smaller than the diameter of the tube.
DRINKBEKER 1.7
none
5 – 10 minutes
Safety glasses and multitool
Soft part of bottle b’twin
1
none
12. 8 DESCRIPTION file out the diameter
the remaining ridges, so the inner diameter is
approximately the diameter of the tube.
DRINKBEKER 1.7
none
5 – 10 minutes
Round file
none
none
none
13. 9 DESCRIPTION hone the inside of the
sealing with the multitool. Be careful with the
spindle speed. If the speed is to high you will
start melting the material. You should obtain a
burr free inside and the surface should look very
similar to the outside of the sealing.
DRINKBEKER 1.7
none
6 minutes
multitool
Parts of bottle B’twin
none
none
14. 10 DESCRIPTION push the tube in the
hollowed sealing. Check the height of the tube in
the bottle. The tube should come just above the
bottom of the bottle, the sealing should come
approximately at the edge of the bottle. The
other end of the tube can be adjusted, with a
pair of scissors, to your ideal height.
DRINKBEKER 1.7
none
1 – 2 minutes
none
Parts of bottle B’twin and plastic tube
none
none
15. 11 DESCRIPTION push the tube with the
rubber sealing in the hole of the bottle cap. This
can will require a little muscle action.
DRINKBEKER 1.7
none
1 – 2 minutes
none
Parts of bottle B’twin and plastic tube
none
none
16. 12 DESCRIPTION the final assembly is
quite simple. Fill the bottle with a liquid, screw
the cap on and you are ready to go.
For transportation you can use the cap of the
spare bottle, used for experimenting with the
laser.
DRINKBEKER 1.7
none
1 minute
none
All parts
1
none
