Introduction: My LED Throwies

This is my version of the LED Throwies project. I'll be using different LEDs and magnets. I just thought it would be nice to post it so everyone could see how it differs from the real, original Throwies. All credit, etc. goes to Graffiti Research Lab, a division of the Eyebeam R&D; OpenLab.

Step 1: Materials

Here is what I ordered for my first Throwie set:

100 CR2032 3V Lithium Batteries
100 "Super-Brite" LEDs (50 Red, 50 Yellow)
50 Magnets (1/2" Dia x 1/8" Thick NdFeB Disc Magnet)
Packing tape Roll

Here is what I have concluded about my first set of ten throwies:

-The magnets seem to loose a little of their strength when they are attached to the battery.
-The "Super-Brite" LEDs ARE way bright but,
-My LEDs were not diffused, so they don't "glow", they just "point-shine".
-Packing tape is hard to strip down into battery-width strips.

Step 2: Complete Throwies

You can see how my LEDs look rather large compared to others. I ordered "Super-Brite" to see how they differed. They are a lot brighter (probalby reduces glow time) but they are not diffused! Big mistake. Now all of the light is projected just through the front of the LED, while I want it to come out of all of the plastic around the LED.


Since I only ordered 50 Magnets (the most expensive part) I decided to figure out another way to get these to stick/stay up somewhere. On my college campus, we have TONS of big willow-like trees that have no leaves right now. I decided if i out some kind of loop on a Throwie that it might catch on part of a branch or something. Below you can see I just wrapped some 550 military cord around the LED. I could never get it to catch anything. I will try fishing line this week and see if it is any better.


Here is what I learned over all from my first Throwing:

-Check a building first to make sure it's not a Engineering test lab inside. :|
-Our campus street lamps are non-magnetic.
-More people than you think noticed the Throwies on the stop light pole.
-Obviously a production line is easier. One person tape, one put LED on battery, then a magnet taper.
-Blinking LEDs will be WAY more noticable and could cause some real stress if Thrown in the right place.
-Only some lights from a auditorium stage are magnetic.
-A stratigicly placed red LED looks like a "hidden" camera.
-Red is cooler than Yellow in every aspect.
-My LED Throwies happen to be very durable. (miss-threw probably 15 times on the streetlight straight up and didn't always catch it. It fell on the asphault. The LED wires may bend, but with a good taper, it will generally stay complete through a lot of abuse.
-Stanbys want to throw them. :)

Comments

author
Neodym made it!(author)2014-05-15

You nan buy cheap magnets at http://www.supermagnetic.de in Europe

author
reboticon made it!(author)2006-09-29

Does anyone know where I can get cheap led lights?

I found a website but am not sure how trust worthy the site is to purchase from (http://www.superbrightleds.com). Radioshack has some, but they are more expensive.

I'm looking to design a costume with a bunch of these led lights in it so I need to figure out how to affix the lights to clothing. But the first step is finding these lights cheaply!

Any leads/help/suggestions would be greatly appreciated!

author
thepelton made it!(author)2009-02-13

American Science and Surplus.

author
thepelton made it!(author)2009-05-20

www.sciplus.com

author
wadadli made it!(author)2009-06-29

That site is great. Thanks for the tip

author
omgflyingbanana made it!(author)2012-05-21

aperture science laboratories.

author
no_light made it!(author)2012-04-23

china, i got 100+ for like 45yuan which is7 dollars

author
Linkster999 made it!(author)2011-11-10

ebay bro get 100 for 8.00

author
sjs229 made it!(author)2009-02-24

you can get them for a ruppee in india

author
anonomas29 made it!(author)2008-09-28

try this link

author
tubbychick3n made it!(author)2008-09-06

around chirstmas time, try this out.

author
Jeebiss made it!(author)2008-09-05

To get them cheap, buy them in bulk. Ebay is great for cheap, bulk LEDs from china.

author
Nicrostar made it!(author)2008-08-27

This reply is almost 2 years after your comment, if your still interested try abctronics.com, 1k red or yellow 3mm or 5mm Leds for 26.99

author
MrMacman2u made it!(author)2008-05-02

I've purchased from www.superbrightleds.com AND another place called www.ledshoppe.com they both have great deals on "cheap" LED's of all colors. The only thing to keep in mind is these are "low quality" LED's that have poor color consistency... meaning you wouldn't want to use them in a 5 million dollar display because it'd look "patchy". As for throwies, they work PERFECTLY and the price is low! Hope this helped!

author
spider36439 made it!(author)2008-02-08

http://www.hebeiltd.com.cn/?p=z.pricelist.led.diode less than 4 cents each 99 dollar min order

author
montiet made it!(author)2006-11-15

check out ebay, I got 50 for 4 bucks. just type in "(size) (color) LEDs", you can do the same for batteries, just gotta find some that aren't from china otherwise ur gunna pay a boatload on shipping.

author
ugs made it!(author)2009-08-22

We did this same type idea with IR Diodes. We built tiny throw away circuits out of a IR LED, 3 vdc Lithium battery and photocell. We emplaced them in the daylight at areas we needed marked as perimeter or boundries of types. Then at night we would veiw the area using night vision to gain the exact area marked with the LED. They sell 9 volt White light and IR Light Beacons that plug directly onto a 9 volt battery. They have been around since the Vietnam War and work just like your little contraption does. Good Idea!

author
ugs made it!(author)2009-08-22

How long do they stay lit when using a ultra brite LED / 3 vdc Lithium battery?

author
jaredc made it!(author)2009-08-13

Can you list your per item costs?

author
palencia made it!(author)2009-08-08

hey anyone know where I can get a pack of LEDs in scarborough? get back at me please!!!! : )

author
Zem made it!(author)2009-07-11

What's the shoestring for? A throwing device?

author
Redgerr made it!(author)2009-07-21

to be able to like hang on trees and such

author
Zem made it!(author)2009-07-21

Ooooh. Cool.

author
Zem made it!(author)2009-07-11

I found that the dollar store down the street sells the coin batteries in 5 packs =D Throwies here I come.

author
ampeyro made it!(author)2009-05-18

if magnets are expensive, try with a soft glue or playdough, or something sticky

author
thepelton made it!(author)2009-06-30

Why not use a velcro hook strip?

author
chosenangelx made it!(author)2009-06-08

try stringing on 10 or 15 on 1 magnet ( if strong enough)

author
Johnny2x4 made it!(author)2009-03-22

what happens if a building is an engineering test lab???

author
Johnny2x4 made it!(author)2009-06-20

haha cool. I dont know why I asked that question.

author
fordman15243 made it!(author)2009-06-19

It explodes.

author
genius245 made it!(author)2009-05-24

You can get magnets really cheap at DealExtreme. Shipping is free, too.
http://www.dealextreme.com/products.dx/category.1105~search.magnets

author
MrMacman2u made it!(author)2009-03-14

What is WRONG with you people? I'm confused as to what you are yakking about. Lithium coin cell batteries are much MUUUUUCH safer for the environment than a lead acid, or Nickle Metal Hydride or a Nickle Cadmium. The reality of it is that 'coin' cell lithium batteries are more or less SAFE for the environment... especially when compared to burning trash, tossing out NiCad and NiMh's, driving that Hummer or pouring paint thinner down the gutter. You know, the stuff that normal people do every single day! A tiny amount of salt water is more than enough to neutralize the amounts of electrolytes present in a coin cell lithium battery. As of the other 'ingredients' of the coin cell, they are borderline totally harmless in the quantities present. You trash the environment more by throwing out a single computer than every throwie ever made. Besides, It's not like we're building these throwies out of nicad rechargeable and them dumping them in a lake. I'm as pro environment as the next foaming at the mouth 'paufrederic', but the reality of it is, compared to your daily commute to work every day for a year, 5000 throwies with leaky batteries is a drop in the bucket. Your weekly household trash is more "hurtful" to the environment than a few hundred throwies. Yes, recycling them is a good thing, but it's not the end of the world if they AREN'T recycled. I'd be more concerned about the guy dumping used motor oil down the drain next door then harassing a few kids actually having some safe and non-destructive fun. Be green when where and in all ways you can, but make sure you have the facts!

author
TheBestJohn made it!(author)2007-11-06

It's not for no good reason... I don't think you're grasping the the idea of the throwie... it's street art. I guess all that poisonous oil paint Da Vinci threw all over those wonderful canvas' was a real "Jackass" thing to do as well.

author
thepelton made it!(author)2009-02-13

White paint was originally made by soaking lead in Vinegar, then mixing the resulting white powder with oil. Blue and Green paint sometimes use a variety of Cyanide. Red, orange and yellow paint can contain Cadmium.

author
paulfrederic made it!(author)2007-11-08

Yeeea..... Comparing LED throwies to Da Vinci doesn't really seem reasonable to me, but you are entitled to your opinion.

author
paulfrederic made it!(author)2007-11-08

Besides "grasping the idea of the throwie".... damn dude, what are you? some sort of throwie fundamentalist?, hhahahahaaa

author
nanor11395 made it!(author)2007-12-18

Ok the point of a throwie is to express your self if you don't want to make it then don't but some people want to get their message out in a way that they want and this instructable was made to show his version of the led throwie and a couple batteries in a town isn't gonna kill anyone i mean yeah its bad if like you throw like 500000 in a lake but no ones gonna do that

author
lasoaaro made it!(author)2009-01-16

I'm surprised no one's mentioned this (at least i don't think they did... read all the comments..) You could try using Hot Glue to attach the magnets to the battery, and you could hot glue the top lead for the LED as well... just a thought...

author
paulezra made it!(author)2009-01-15

i see lots of comments about the battery polluting.. don't you guys try to get your throwies back after use to save on costs? pull them apart put a new battery in, throw the old ones away at some kinda battery recycling place. rather than paying for all the parts your only paying for the battery again.

author
paulezra made it!(author)2009-01-15

try using a nail file to file down the top of the LED's, this seems to diffuse them a bit.

author
codongolev made it!(author)2008-12-01

my brother wants to make a throwie to shoot out of our potato cannon at night. OMG IDEA!!! use trigonometry to determine an actual estimate of the height of the throwie!

author
GreenDay made it!(author)2008-02-10

Greenpeace is a lesser source than wikipedia.

author
peanutthegreat made it!(author)2008-11-26

Wikipedia's awesome

author
peanutthegreat made it!(author)2008-11-26

a single battery+16000 l. of water=polution??? whatever this guys smoking i want 20 of them

author
slowsam made it!(author)2008-11-22

isn't a nother name for a "throwie" is a dot-it checker light???

author
Big+Bwana made it!(author)2007-12-28

Carbon Zinc batteries are "not to bad" for the enviroment ?? When you crack open a CR2016 litium cell you have some simple components you start with a metallic lithium anode and then there is a seperator which is some porous material usally containing lithum salts and there is a manganese dioxide cathode. ((( Oh this is also in the "not too bad" carbon zinc cells only they contain alot more of it so it must be good ))) None of which are really harmful once they are broken down in nature. infact I'm sure lithum breaks down into lithium hydroxide which counter acts the effects of acid rain, and makes people feel better... (( it is after all only the 33 most abundant element on the planet )) And as for only 10% of the throwies getting picked up, lets stop and think about it, Lithium can be used to reduce pseudoephedrine and ephedrine to methamphetamine in the Birch reduction method, so you can bet more then 10% gets picked up there. Not to mention by people like me who pick up there own throwies, and others (( Thank you, and you can feel free to throw more my way. )) and reuse the parts.... And I have yet to see a throwie using a Mercury cell, and I don't think it's to do with being enviromentally friendly, it's surely a cost issue and battery capacitiy issue. As for the magnets on the throwies what a great Idea plus I've found afterwards the ones which didn't get stuck to a wall or other metal things where easy to pick up using a nail sweeper they just fly towards it ........ Thanx for the ideas

author
assasin090 made it!(author)2008-05-26

wats a throwie?? am i missing some giant craze?

author
Epeoples made it!(author)2008-11-16

link
/
That

(i can't make a good arrow)

author
Epeoples made it!(author)2008-11-16

to answer your other question, yes

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Big+Bwana made it!(author)2008-05-28

It's a L.E.D. with a small set of lithium batteries and a magnet they are common at parties, raves, clubs, dances and people toss them and you have small multi colored mood lights stuck on walls the floor ceilings... And if you enter a ible into the Let it Glow Contest you might win some ...

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