Instructables
Picture of E-Bola
DSC03165.JPG
Bolas, or boleadoras, are throwing weapons used to trap / capture prey. Traditional bolas are made of weights attached to the ends of three connected sections of cord. When thrown, the weights will spin around the taut cords until the bola hits it's target. If the bola is thrown correctly the weights will have enough momentum to completely circle the target multiple times, wrapping / trapping it with the cords. (obligatory wikipedia link)

"E" is an abbreviation for electronic, it was very popular in the 90's before the whole "I" fad. It can still be spotted today lurking next to mail.

This project describes the process of building a bola that uses LEDs and batteries as the weights, and a short length of cord as the cord.
 
Remove these adsRemove these ads by Signing Up

Step 1: Materials

Picture of Materials
DSC03148.JPG
DSC03149.JPG
DSC03158.JPG
Duct tape - What would we do without it?

Nine 10mm LEDs - Use whatever colors you like. I decided to use a single color for each section of cord.

Nine batteries - Standard 3v CR 2032 Throwie variety

Seven feet of cord - It should be strong, thin, and flexible.

Step 2: Illuminate the LEDs

Clip the leads from the LEDs so they are about half of their original length.

Attach the LED to the battery with a small piece of duct tape. Each LED / battery combo will undergo a ton of abuse so make sure that they are connected very securely.

To test: Violently throw the illuminated LEDs at walls and other hard surfaces to see if they flicker at all. If they do, reconnect the LEDs to the batteries, and try again.

metins22211 months ago
Make one more e bola accept with a switch
lucien2374 years ago
Ok saw a comment about the ebola virus and it's symptoms. *sigh* Cue the science segment. The ebola virus is a severe variety of hemorrhagic fever. Symptoms include fever, vomiting, bleeding from ALL orifices, including the pores in the skin (severe cases), and in really severe cases your entrails begin to take on the consistency of thick ketchup. And let's not forget everyone's favorite symptom. Death. No cure, no treatment. Your only hope is to survive the disease running its full course of about two weeks or so after infection occurs. And round of applause for the folks who mentioned the virus and brought on my sudden bout of informative ocd. >_>
*applause*
You deserve a cookie(:
wow, how lucien237 described it, it reminded me of the contagion movie i saw a couple months back...
Yeah Ebola is one of those things that's already so scary people don't need to truss it up for movies. Well, maybe a little more gratuitous blood, but really, for being +75% water, so much of that's contained in cell membranes that we're more squishy and gelatinous than liquid. So injury tends to be more oozy than splashy.
EVERY orfice? .... ouch...
EVERY orifice. If you have a hole in your body, it has the potential to bleed. That means your nostrils, anus, urethra, mouth, even your the pores you sweat from and your tear ducts. I would suggest simply not ever catching said virus. Fortunately, however, it's not that common. It's not widespread, and it's believed to be transmitted by contact with bodily fluids. Unfortunately, they don't know what the natural reservoir (the organisms that the virus usually live in without causing much harm) actually is, so they have no surefire way to tell you where you might bump into it.
Good god....
You think that's scary, it has a 90+% fatality rate. There is an airborne strain of Ebola amongst monkeys and lucky for us it's the only strain of simian ebola that we are immune to. It was brought into Virginia through an exotic pet dealer back in the 80's. If we hadn't have been immune it would have been like The Stand.

http://en.wikipedia.org/wiki/Reston_ebolavirus
Way to stay on topic guys :-)
Read the wiki article you left the address for, and I didn't see it saying anything about that strain being airborne. Also, we're NOT immune to it, in 2009 they had a verified case of that strain passing from ape to pig, then pig to human. So it's POSSIBLE, just not likely. Also the mortality rate of Ebola isn't 90+%, it's 50-90% depending upon which strain/species of ebola you've contracted (humans are vulnerable to all but Reston, which can pass to humans through swine apparently), with some variance from your medical care during your illness. The 90% mortality rate comes from the Zaire strain, which was the first strain discovered. Regardless, it's a nasty piece of work considering that H1N1 and Avian flu and SARS all have gotten major press time even though the mortality rate of those illnesses is pitiable by comparison. If an airborne strain of Ebola did ever make a debut, civilization as we know it would grind to a halt as a plague more deadly than the Black Plague that ravaged Europe consumed the globe. Really the original propagators of the virus are bats. Or rather that's the current theory. Primates die when exposed so it can't thrive in us enough to survive as a species, and after testing 30,000 species of plants animals fish insects and reptiles, the best guess is bats. Bats nibble fruit, the fruit falls, stupid monkeys eat the fruit, become infected, then starving natives eat the stupid monkeys. Granted cooking should kill the virus, but you touch their bodily fluids when you skin and butcher them, thus providing a means for infection.
lol, super-flus are bad, we don't want The Stand to come true....
this is fantastic!!!
username2523 years ago
Couldn't the LEDs break from hitting them?
No, they are solid plastic. The worst you could do would break the soldered joints.
spartan0945 years ago
Instead of the lame duck tape, could i solder the LED's for a better connection?
im not sure i understand your question. theres a particular phrase that is completely and utterly illogical. im not sure its even correct English, in fact. you say "lame duck tape" i assume you mean "duct tape," in which case i challenge you to inform me of when, where, and how, if ever, duct tape has been lame. duct tape is the holiest of holy materials; its what keeps instructables up and running smoothly, and your plastering it with the adjective "lame," well, it makes me sad. in fact, if you had not redeemed yourself by suggesting instead to solder (the more elitist holy way to keep things together), i would be just plain angry with you.
i think that duck tape should ALWAYS be around the house! leaking pipe? duct tape! hole in bike tire? Duct tape! broken arm? doctor! then duct tape!
i prefer the guerrilla ductape...much stronger
I hear that Che is a big fan too.
Haha, niiiiiiiiiice
mother in law XD
now THAT's the best idea ive heard since electric cookie cutters!(not really(really))
Silence is golden, but duct tape is silver.
Duct tape is like the force; it has a light side and a dark side and it binds the universe together btw, the timed exposure shot is sweet! good 'ible, 5/5!
You gotta be kidding me. Alright, now I steal something from your quote book... IMA FIRINMAH LAZER!!!!! Hah.
Well, while were at it, i guess ill throw this in... I thoroughly disapprove of duels. If a man should challenge me, I would take him kindly and forgivingly by the hand and lead him to a quiet place and kill him.--Mark Twain
This is why I love artists(:
(yes, that includes authors.)
my favorite "whoever said the pen is mightier than the sword has obviously never encountered automatic weapons" - call of duty 4 :D
Nice.
Wrong.  That's from Dragon Ball Z.
Dude, you HAVE to give credit to Carl Zwanzig! he created that quote!
lame duct tape is known otherwise as packaging tape.....
Lol, I know this is an old post but duct tape was originally called duck tape. During World War II, the US Military needed a waterproof tape to keep moisture out of ammunition cases. They enlisted the Johnson & Johnson Permacel Division to manufacture the tape. Because it was waterproof, everyone referred to it as duck tape (Like water off a duck's back). After the war, the housing industry was booming and someone discovered that the tape was great for joining air-conditioning ductwork. So the color was changed from army green to the familiar silvery tone of today, and people started to refer to it as duct tape. Therefore any name is appropriate.
Did you like, copy that from wikipaedia or something?
If you didn't then, when/where did you learn this stuff?
Actually it was because Johnson and Johnson used cotton duck cloth in their medical tape for that reason it soon became known as "duck cloth tape" or "duck tape" for short.
(see Petroski, Henry. Small Things Considered--Why There Is No Perfect Design. New York: Vintage Books, 2003)
actually, I would have preferred to know why they were making tape out of lame ducks.
xenor munchman4 years ago
they were easier to catch?
So I should solder it?
You can't solder to batteries. There is a coating on it so it the solder slips right off.
Pro

Get More Out of Instructables

Already have an Account?

close

PDF Downloads
As a Pro member, you will gain access to download any Instructable in the PDF format. You also have the ability to customize your PDF download.

Upgrade to Pro today!