ELECTRO-GRAF
This will vary based on number and
types of LEDs, circuit design and
environment. You must supply the
LEDs with = 3 volts DC power and
each will draw 20mA of current.
Depending primarily on the number of
LEDs, you can use anything from a $2
9 Volt to a $50 dollar car battery to a
regulated DC power supply from a
lamp post or other outlet if the proper
current limiting components are used.
In the lab I use a regulated DC power
supply.
Vendor: Less EMF
URL: http://www.lessemf.com/
paint.html
Average Cost: $22 per can or
$65 for a 250ml bucket.
Notes: This is the secret weapon.
2. Spray-Paint, any color
Vendor: Local hardware store
Average cost: $22.50
for 6 cans
Notes: Use what you like.
3. Magnet Paint
Vendor(s): Less EMF for
premixed indoor paint called
Magic Wall
Magically Magnetic, Inc. for
paint additive. This additive
can be mixed with indoor or
outdoor primer sealer.
URL: http://www.lessemf.com/
paint.html and
http://lyt.com/
Average cost:
Magic Wall @ $29.95/quart; Magnet paint additive @
$15/quart and primer sealer
@ $8.50/quart
Notes: We used Zinnser BULLS-EYE
primer 1-2-3 primer sealer for the
base paint on the outdoor electro-graf
proto. It's the good stuff. Your local
hardware store is sure to have a thick
outdoor primer that will work. You can
get worse paint for less money. 2nd
Note: Don't believe the hype. The
paint itself is not magnetic. It is just
metallic and magnets adhere to it.
4. 10mm LEDs, any color.
7. Stranded Wire
Vendor: Jameco
URL: http://www.jameco.com
Cost: $3 per roll
Notes: any 18-24 AWG stranded
hook-up wire will work. Solid core
wire is too brittle.
8. 5 Minute Epoxy
Vendor: Your local hardware
store should have it.
Cost: $5 dollars per tube
Notes: This is some delightful shit.
Get the kind in the two part dispenser.
9. Tape
Vendor: Your local hardware
store should have painter's
tape and masking tape.
Get both.
Cost: $2-$5/ per 60 yard roll
Notes: 3M painter's tape is blue and
has less adhesive than masking tape.
Both tapes are useful in different
situations.
10. Stencil Materials: Acetate,
Manila Folders, Cardboard
Vendor: It's our crew at HB
Electronic Components
URL: http://www.hebeiltd.com
.cn/?p=leds.9.10mm
Avg. Cost: $0.20 per LED
Notes: You can use smaller LEDs.
FULL SCHEMATIC DRAWING ON FOLLOWING PAGE
Vendor: Your local art store
or office store.
Avg. Cost: $10 for a 25 foot
x 12 inch roll of acetate,
folders and cardboard vary
in price and are often found
for free.
2. 3/4 Inch Foil Tape
Vendor: Newark In One
URL: http://www.newark.com/
Avg. Cost: $18 per roll
3. Conductive Epoxy
Vendor: Newark In One
URL: http://www.newark.com/
Cost: $32.00
MANUAL
Notes: The epoxy is optional. It is
used to attach magnets to electronic
components and wire.
4. Electronic Components
To create LED sequences,
animation, solar power, etc.
TOOLS
A respirator, a multimeter, paint
brushes, containers for mixing
paints, X-acto blades, clay.
RESOURCES
Graffiti Resources
Stencil Revolution
http://www.stencilrevolution.com/
Electronics Resources
Tom Igoe’s Physical Computing
http://www.tigoe.net/pcomp/index.
shtml
Physical Computing In Print
http://itp.nyu.edu/~dbo3/physical/
physical.html
**All prices are in US Dollars and based
on availability either from online vendors
or local stores. Shipping abroad is likely to
increase the cost of some products.
**Units of measurement are Standard,
unless otherwise noted.
DIY Book by IminentDisaster and the GRL. 3D Modelling: Bryan Vaccaro.
All work in the public domain
6. Power Supply
WWW.GRAFFITIRESEARCHLAB.COM
1. Super Shield Conductive
Spray and Bucket Paint
Notes: Cost reductions for larger
quantities
The choice of resistor value will
depend on your circuit.
Vendor: Jameco
URL: http://www.jameco.com
Avg. Cost: $1 for 100 pieces
.
L
.
G.R
PARTS LIST
1. 1/4 or 1/2 Watt Resistor
O
Vendor: Amazing Magnets
URL: http://www.amazingmag
nets.com/index.asp?Page
Action=VIEWPROD&ProdID=42
Cost: $9.00 per 100 magnets
OPTIONAL PARTS
MUS SERIA
QUAERA
LUD
5. 1/8 Inch Diameter x 1/16 Inch
Thick NdFeB Disc Magnet,
Ni-Cu-Ni plated
OT O
AM
The basic materials for building an
Electro-Graf can be purchased
using both online vendors and local
hardware stores. A small (100 LED,
4 foot x 4 foot) Electro-Graf could
run approximately $100.
ELECTROGRAF
MATERIALS LIST