Picture of Caltrop Deployer
for the average James Bond

Step 1: Materials

Picture of materials
for this you will need;

2 pop top cans (the thicker the better, a soda can would work, but the korean iced coffee can I used would be better (don't ask why I have a korean iced coffee can))
1 soup can (a tomato sauce can would be best)

wire hanger
duct tape


can opener
wire cutters
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sto8437 months ago

did u make an instructable for the exploding pen?

sto8437 months ago

did u make an instructable for the exploding pen?

montmorency6 years ago
um, dude, that's a model airplane control surface servo your using, those things cost a lot, especially with the remote, well over $300.
actually servos cost less than $20.
dunno where you're living :P
Let's see... he never said to use a damn remote. A model airplane servo can be controlled with a simple servo controller, probably bought for less than 10 bucks. Not to mention servos themselves often go for less than 20 bucks. So no idea why you would assume he'd go the most expensive option. And who carries around a remote anyway? It'd be smarter to mount a button on the dash, with the button connected to the (cheap) servo controller. The servo doesn't have to be strong, as it has a (relatively) light load. In other words, STOP DISCOURAGING PEOPLE ABOUT THE ECONOMICS OF THIS PROJECT.
You can butcher them out of broken RC Cars or Helicopters...
And the minimal price for cars is 10$ in Ny....
PastTheVoid6 years ago
Where did you get the tea? Korea?
wtf it is tea!!!!!!!!!!!!!!!11 this guy is teaching u how to make a Caltrop Deployer

and u care about tea!
A Korean iced coffee can? hmmm.....
goltor5 years ago
Cheap servos can be found at dealextreme.com
this is awsome but it would be awsome if someone made a way to have the caltrops be flaming (so they melt through tires)
you make it flame by adding napalm to the tips of the caltrops. and light it by having a butane ligter attached to some kind of remote lighter. u make napalm by mixing 3 parts foam and 1 part gasoline.
haha 3 parts foam 1 part gasoline don't make me laff. if you're using that primitive method use at least 20:1 foam:gas ratio. its nicer when you add ammonium nitrate to the mix.
or try adding, my favorite, THERMITE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! sprinkle gently until covered with thin layer. WARNING MIGHT CAUSE FLAMING DEATH. USE CAUTION WHEN USING!!! or u can use: 3 parts 80%+ iosoprol (or however u spell it) alcohol, 3 parts gasoline, 1 part deisle, 1 part lquid fertilizer, 9 parts foam, 1 part acetone, small spray of AXE deortorent, small spray of lysol, 1 part dove soap shavings, 1 miniture ground up smoke bomb, and 5 parts thermite. Make sure you mix it all in boiling-hot bleach that is cooling down to about room temperature. there u got a nice big flaming death, bigger than setting off a profetional-sized morter shell on the ground packed with extra gunpowder, or a 1" x 1" peice of C-4.
Words Corrected:
  • isopropyl
  • diesel
  • liquid
  • deodorant
Words Not Recognized:
  • lysol
Wasagi Derin6 years ago
Lysol is an Air Freshener brand in the US. Why not just coat the caltrops with lighter fluid, freeze them, and put a sparker attached to the servo? Lug Big Lug, it's really sad that an Instructables member from Turkey has better english than you....
Flames would kinda defeat the purpose, since that would make them VISIBLE CALTROPS... and thus, easier to dodge...
andresm8 years ago
lol, i just made mine for my car, and i didnt want to use my servos so what i did is that i used my KNEX (R) motor cut the cables added some longer cable (so i could go from the back part of my car to the drivers seat) and used tape to put the motor on the deployer so when i activat the motor, a little stick moves and releases the lid.... if u want ( and its ok with AlexTheGreat ) i can put up an instructable on the whey i did this.... (srry if my english is bad, im a mexican so i speak spanish)
Pbyrd andresm7 years ago
I think you should post it
Derin Pbyrd6 years ago
The Zeroth Law states that he shall post it.
z0mbi3 man6 years ago
whats servo???
Electronically controlled motors that have brackets AFAIK.
Hopefully this link works.
Crash21088 years ago
The best way for a smoke screen on a car that I've thought of is to just pump glycerin into the exhaust pipe.
ethelyne glycol antifreeze makes a thick white smoke used engine oil if you are on budget and its aneat way to recycle
yuhp recycling "excuse me young man why have you got thick white smoke pouring out your exhaust?" "just doing my part in helping the environment sarge" =]
--Thatguy--7 years ago
Is the servo used a standard or continuous
lupinesoul7 years ago
The best, easiest, and most reliable type of caltrops to make:

nail face7 years ago
hey this may sound dumb but...wats a servo and where can i find one?
You can skip the motor business and simply use a wire that can unlatch the lid. By using a brake handle and cable for a bike you can easily modify this for a bicycle. Put the deployer on some panniers and you're in business. One of my next projects will be focused on a similar idea.
Yeah, but then you can't add a hidden red button in the gearshift knob to deploy the countermeasures!
You could put a string through it with knots on each side to hold it closed, then put a firecracker or something with an electrical detonator attached to the string. Then when you push the button the string breaks and the hinge opens, releasing your caltrops with a bang!
i am so doing this
brian2507 years ago
under new laws the spikes and cannister comes under terrorism law.i would think twice about advertising them
ker-boom1017 years ago
they had something like this in the movie "catch that kid" on the scene when they outrun the police with go karts they had something like this but for effects instead of a servo they used a small explosive
Jackhole7 years ago
Genius. I might put this on my bike and put those little poppers inside so when they hit the ground they explode. Oh and I'll power it with a DC generator hooked up to the front wheel. I can't wait.
PyroMonger7 years ago
this would be a sweet idea to incorporate into a bike (or car) if you want to get away from someone or some thing...you can even have different items inside the can depending on its purpose. great instructable.
Hawaii000007 years ago
Ummmmmmmm, what does it do??
it drops tacks
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