Sloan A. Kulper

SmallDesign Firm, Inc.

at Work

SLOAN A. KULPER + SLOAN@MIT.EDU + .. + 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

.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

.photographs

(.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

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+ po

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for in

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all le

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touch

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if all o

ther s

enso

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uche

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sign

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that

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r non

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put |

led a

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mple

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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 + SLOAN@MIT.EDU + .. + COMMONWEALTH AVENUE, BOSTON, MA

Small Design Firm, Inc. Sloan Kulper