__EQUIPMENT__
**- 1 record player working at the speed of 78
tours/minute,**
**- 1 big cardboard sheet, rigid enough for the future
cylinder to stand up, and soft enough to be easily cut and worked; you can
get sheets of different thickness and dimensions in an office stationery.
Choose the darkest colour you can find as the
cardboard must be opaque to the light of a 100 watts bulb.**
**1 graduate rule of 30 or 40 cm long,**
**1 set square,**
**1 thin lead pencil,**
**1 rubber,**
**cardboard glue,**
**1 cutter,**
**1 100 watts bulb,**
**1 lamp socket,**
**1 male plug,**
**electric lead (5 to 6 meters long),**
**1 multiplug,**
**1 tape measure to measure the circumference of the
turn table of the record-player,**
**clothes**** pegs.**
__PRINCIPLE OF THE DREAMACHINE
__
**To build a dreamachine,
you need a cylinder with holes in it, fixed uppon
the turntable of a record player turning at the speed of 78
tours/minute.**
**In the middle of the machine, one 100 watts bulb.
When you seat in front of the machine, the light of the bulb must come in
front of your closed eyes intermittently, according to a rythm
from 7 to 13 light-flashes per second, which is the rythm
of alpha waves of the brain.**
**For the effects, refer to "Colloque
de Tanger", vol. 1, Christian Bourgois éditeur, or "Here
to Go - Planer R 101", Brion Gysin - Terry
Wilson.**
__BASIC CALCULUS__
**- The rythm of the light
flashes is from 7 to 13 flashes/second.**
**- The turntable of the record-player turns at the
speed of 78 tours/minute = 78 tours/60 seconds.**
**- In one second, the turntable makes
: 78/60 = 1,3 tour.**
**- 1 flash correspons to a
hole in the cylinder.**
**- 1 row of 6 holes (6 flashes) will give for every
tour a rythm of 6x1,3 =
7,8 flashes/second**
**- 1 row of 7 holes : 7x1,3
= 9,1 fl/s**
**- 1 " " 8 " : 8x1,3
= 10,4 fl/s**
**- 1 " " 9 " : 9x1,3
= 11,7 fl/s**
**- 1 " " 10 " : 10x1,3
= 13 fl/s**
**The length of the cartdbord
sheet must be equal to the circumference of the turntable. The dimensions of
the plan are the ones of a Dual 1010 record player; the circumference of its
turntable is 85,5 cm.**
__PROCEDURE__
**1. Measure the circumference of the turntable with
the tape measure. **
**2. Transfer this dimension on the length of the
cardboard sheet from the left side at the top and at the bottom of the sheet.
Draw a line joining the 2 points, parallel to the width of the sheet.**
**3. Once the line is drawn, draw another one,
parallel to the first one, 4,5 cm on the right far
from it; this is to delimit a little band which, at the end of the
operations, will be stuck to the left width to make the cylinder. With the
cutter, cut the sheet along the second line. So the final length of the
cardboard is : 85,5 cm + 4,5 cm = 90 cm.**
**4. At the top of the cardboard, on the right and
left widths, measure 2,5 cm. Draw a line joining the
2 points. You get a band of 85,5 cm x 2,5 cm. Do the
same at he bottom of the
cardboard in drawing a band of 3 cm wide (see the drawing). The width between
the 2 bands is 65,5 - (2,5+3) = 60 cm.**
**5. Now divide this width of 60 cm in 5 equal parts
of 12 cm. Measure 5 times 12 cm on the right and left widths. Draw the lines
joining those new points. You get 4 new lines, parallel to the length.**
**6. Now calculate the dimensions of the holes in
every row. The upper row will contain the most numerous holes (10) and the
row of the bottom, the less numerous holes (6), so the base of the cylinder
is as solid as possible (see the plan of the cardboard of the cylinder).**
**a) Upper row : **
*** Divide this row in 10 equal parts : 85,5/10 = 8,55
cm**
*** Measure 10 times this dimension at the top and at
the bottom of the upper row, in beguinning by the
left.**
*** Draw the lines joining the new points
: you get 9 parallel lines 8,55 cm far from one another (these lines
will be in the middle of the holes) delimiting 10 rectangles of 12x8,55 cm.**
*** Take the plan of every hole :
the line IJ represents the new lines you have just
drawn. On this line IJ, measure 2 times 1,5 cm, from I and from J, so you get the points K and L.
From these points, perpendicularly to IJ, measure
the points A, B, C and D, 2 cm far from K and L. raw the lines joining A and
B, B and D, D and C, C and A. The rectangle you get is the hole.**
*** Proceed the same way to get all the holes of the
row. On the left width of this row, you only get half a hole. On the right
side, at the end of the row, the last hole encroaches upon the band to stick;
the second half of this hole will fit to the half hole on the left when you
stick the cylinder, and this for every row. In other
words, the left half hole and the hole at the right end of the row will make
the same hole.**
**b) Second row :**
**It will contain 9 holes. Proceed as you did for the
upper row, but divide the length of the cardboard by 9 : 85,5 / 9 = 9,44 cm.
Proceed as before with this new demension and so
for the other rows :**
**c) Third row :**
**8 holes : 85,5 / 8 = 10,62 cm**
**d) Forth row :**
**7 holes : 85,5 / 7 = 12,14 cm**
**e) Fifth row :**
**6 holes : 85,5 / 6 = 14,16 cm**
**Every hole has the same dimensions, whatever the row
may be.**
**7. Once you have delimited all the holes, cut them
with the cutter. Put the cut pieces of cardboard aside, you will need them
later on.**
**8. Put the cardboard sheet upon the turntable in
giving a cylindric shape to it. Temporarily fix the
2 widths the one on the other with clothes pegs. Make sure the base of the
cylinder fits with the dimensions of the turntable and that the left half
holes fit with the holes of the right width. Do not stick the edges yet.**
**9. If the turntable is covered with a rubber
surface, delicately unstick the edges of this surface; you are going to use
it to maintain the cylinder in position. If there is no rubber surface, take
a thick piece of rigid cardboard and cut it according to the exact dimensions
of the turntable. Make a hole in the middle, like a LP record, in introducing
it in the axis of the turntable.**
**10. Go back to the cardboard sheet. Take the cut
rectangles ABCD you had previously put aside, and
solidly stick them at the bottom of the sheet on the width so you get little
tongues to be fold and slipped perpendicularly under the rubber surface, to
keep the cylinder upon the turntable. Put as many tongues as needed.**
**11. Your cylinder is ready. Stick the 2 widths one
upon the other, maintaining the stuck band with the clothes pegs, in adapting
them in the holes. Leave the pegs untill the
cardboard and the glue are dry.**
**If the upper row is not perfectly circular, in cases
the cardboard would fold over the holes, make the
cardboard more solid in sticking the remaining little triangles ABCD inside the cylinder.**
**12. Then you adapt the cylinder on the turntable in
slipping the little tongues under the rubber surface or the cardboard disc.
The body of the dreamachine is ready now. If you
turn the record player on, the cylinder must turn on the turntable in
remaining solidly fixed.**
**13. Then you take the bulb, the lamp socket, the
electric lead and the male plug. Fix the whole lot together.**
**14. Put the dreamachine on
a stool, near a power point, let the bulb hang in
the middle of the cylinder without it to touch the edges. Adjust the length
of the lead over the dreamachine in the most
adapted way to the room where you are (you can pass the lead in a hook
screwed in the ceiling, make a bracket system,
etc...). The length of the lead must be adjustable, so the bulb can be put in
front of every row.**
**15. Plug the bulb, plug the record player, turn it on in setting it on the 78 tours speed. Sit
comfortably in front of the machine and approach your face the closest you
can. Close your eyes and watch : you get inside your
head mlulticoloured geometric and stereoscopic 360°
images, and lights, the colors, shapes and designs of which constantly
changes. You can vary the images in increasing or lessening the pressure of
your eyelids andd the distance between your face
and the machine and in experimenting the different
rows.**
**A record has been specially made to be listened to
while watching the dreamachine, its rythm is the same as the
light flashes: "Heathen Earth", Throbbing Gristle (International
Records), best in stereo with a headphone.**
__PLAN
OF THE CARDBOARD FOR THE CYLINDER__
**(The scale is approximative,
because of the imprecision of the drawing program. Use the dimensions instead
of reproducing the schemas, which are here for indications, to allow to visualise the work to be
done.)**
__PLAN OF EVERY HOLE__
__DREAMACHINE____ ONCE BUILT UP__
__For a
45 rpm dreamachine__
From: "Todd Campbell"
<filmnoir23@hotmail.com
To: <Dreamachine@yahoogroups.com |