Design Firm, Inc. Small - Massachusetts Institute of Technology
Transcript of Design Firm, Inc. Small - Massachusetts Institute of Technology
Sloan A. Kulper
SmallDesign Firm, Inc.
at Work
SLOAN A. KULPER + [email protected] + .. + COMMONWEALTH AVENUE, BOSTON, MA
Small
These documents describe projects for which I ledelectronic hardware design and fabrication while Iwas employed at Small Design Firm, Inc, an aptly-named multidisplinary design firm located inCambridge, MA, under the principal direction of itsfounder, David Small.
These projects focus on realizing the inherentpower of technological expertise integrated withwell-developed aesthetic sense and critique, as itpertains to the creative display and manipulation ofinformation. All designs are original.
Photographs are from : http://davidsmall.com
The Illuminated Manuscript of David Small
Sensor hardware / microcontroller sofware designfor interactive installation. Words projected ontothe blank pages of an oversized book react to thehand movements of readers.
On display at Documenta_11, Kassel, GermanyMay September .
.photographs
Interactive Fountain at the Mary Baker Eddy Library
Sensor module and printed circuit board design /fabrication for a permanent interactive installation. infrared distance sensors wired to custom PCB’spass signals to a computer in control of textprojected on the surface of the fountain.As persons approach the installation, words pro-jected on the fountain are pulled towards theirlocations.
Permanent installation at MBEL, Boston, MA
September Present.
.
.photographs
mechanical drawings
.printed circuit boards
(.125",.125") (2.375",.125")
(0",0")
(2.5",1.25")
(.125",1.125")
Drill Points in printed circuit board, Ø.125"
FLOOR
1"
SMALL DESIGN FIRM, INC.
mechanical drawing sketch for hall of ideas sensor array housing2/26/2002 sloan kulper
top view
basin
foot
Ø 108"
Ø 36"
BASIN
FOOT
18"
18"
1
2
3
4
5
6
78
~11.2 deg.
1.5"
1.25
"
2.5"
8 modules spaced evenly across a 90 deg. segement
(drill holes in housing at these points for rear mounting)
*note that the each module does not need to be flush to the wall of the foot; the housing can extend the placement of the module out a few inches depending on [the housing's] design
3.53" length
.mechanical drawings
SMALL DESIGN FIRM, INC.
mechanical drawing sketch for hall of ideas sensor array housing p22/26/2002 sloan kulper
Rear face
Angle = 110 deg
Floor
Cross-section sketch of one segment of housing:1.5" high, ~3.5" long, ~.25" thick, 3.0" deep
D
H
T
Ø .125"
L.5"
*note - each segement should be connected to the next directly (welded, etc.) rather than with screws if that is possible.
.mechanical drawings
.
Circuit board for infrared sensor module.Filters sensor data through a simple, adjust-able A-D (comparator) circuit, and passes itto one of channels on the data bus,selectable via an -DIP mounted behind thesensor.
* see slides for image of fully-populated board
printed circuit boards
.printed circuit boards
Bus circuit board for the collection of datafrom, and distribution of power to, the sensor modules described on the previouspage.
* see slides for image of printed circuit board
.printed circuit boards
Printed circuit board for -indicatorpanel which monitors the activity of the sensors through a ribbon to data collec-tion board, described on the previous page.
* see slides for image of printed circuit board
Interactive Museum Exhibit
Capacitive switch and printed circuit boarddesign / fabrication for interactive museumexhibit [collaboration with John Rothenberg].Touch-sensitive controls for an interactive mapof New York City and information displayed onwall-mounted computer monitors.
Permanent installation at MoS, New York, NYSeptember Present.
.
.timeline of operation
mechanical drawing
.printed circuit boards
t=0.0st=0.0s
t=1.0st=1.0s
t=1.1st=1.1s
t=3.0st=3.0s
t>3.0st>3.0s
timeli
ne of
scen
ario
in se
cond
s
+ po
wer cy
cle / w
aiting
for in
put |
all le
ds of
f, no a
nimati
on ru
nning
+ se
nsor
a is
touch
ed | (
if all o
ther s
enso
rs ar
e unto
uche
d) pc
sign
als ad
r210
0 to e
nable
low fo
r 10m
s ; le
d a tu
rns o
n
+ an
imati
on a
runs
| pc i
gnor
es an
y inp
ut fro
m the s
enso
rs
+ se
nsor
s are
polle
d | pc
tests
that
all se
nsor
s othe
r tha
n a ar
e be o
ff
+ wait
ing fo
r non
-a in
put |
led a
kept
on
by sa
mple
r ic
+sen
sor b
is to
uche
d
sensor + led on a pcb
sensing ic
a
b
c
>
>
8-bit sampler ic
>
>
adr2100
>
>
rs232
>
>
>
>
enableactive low
...
> >
>>
pc
sdf program:.cpp.h.be.bopbr
othe
l gui
des
tijua
na b
ible
s
+ etc
.
qt115
flip-flip w/ common E
>> > >??
>
>
monitor / plasma screen
display cases
schematic
c2002 sloan kulper small design firm, inc.
tijuan bibles + brothel guides exhibits : museum of sex, ny, ny
.timeline of operation
* see slides for color image
c2002 sloan kulper small design firm, inc.
touch sensor
mechanical drawingtijuana bibles + brothel guides exhibits : museum of sex, ny, ny
oI = .75"
metal electrodebrass, nickel or chrome rod
oI = .75"
plastic bushingclear acrylic or s.40 pvc
inner
oI = 1.0"outer
capacitive coupling
blue led
copper wire
>
>
>
h ~ .75" h ~ 1.0"
connection betweenelectrode and sensing ic
> >
5mm ultrabright
d ~ .75"
top
side
.mechanical drawing
Solidcore design of (non-mechanical)capacitive -coupling switches with LED
indicator.
* see slides for color image
CONNECTION DIAGRAM 7/31/2002bg-control-board-7b.pcb
pwm A signalconnected directly to pwm Aon the adr2100(controls the common enable pins for the flip flops)
pwm B signalconnected through a 20mAcurrent limiting device to pwm Bon the adr2100 (sends an oscillating pulse to leds that are "on")
master / slaveconnected to either +5V(master) or Gnd (slave)for daisy-chaining
General Note orientaion of sockets9-16 is flipped
sync in sync outconnected to either +5V(master) or Gnd (slave)for daisy-chaining
+12VDC Supplythe more regulated the better,though since we're not expectinga precise12V level anywhere on either board, but rather running everything off of local regulators,this should be able to safely dipto any value above 7V.
General Notepower and ground traces aresmaller at points wherethey cross on opposite sidesof the board to reduceunneccessary capacitance
pwm B signal
.printed circuit boards
.printed circuit boards
Printed circuit board design for rear wall-mounted capacitive-coupling switches.
SLOAN A. KULPER + [email protected] + .. + COMMONWEALTH AVENUE, BOSTON, MA
Small Design Firm, Inc. Sloan Kulper