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Mini slingshot "School"

DIY ideas / Slingshot
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“Everything ingenious is simple!” - Joseph Gelbbes

Today we will make an ordinary slingshot, small in size, but from this its capabilities only increase! It can be easily clenched in a fist, it is very invisible, and in order to shoot you don’t have to wave your hands and attract the attention of teachers! And by the way, it is powerful (for its size): shells cauterize or quietly fly through the entire class (these characteristics depend on the number of elastic bands).

From personal experience:

Studying in 8 “B” I decided to shoot one not very friendly classmate in physics ... I missed two times and got into her neighbor ... I was beaten in the middle of a physics lesson and ran to memorization ...: angry:

My weapons burned only once. The head teacher saw me spinning shells in algebra and removed all my slingshots. But I do not despair, a skein of wire stuck at home!

Having tied together about 5 gum we get a cruel weapon: after the second shot, the enemy surrenders and offers to fight together against someone else! : am:

Materials:
- A large paper clip (or just 2 mm wire)
- Rubber bands for weaving (the whole trick is to use them, they are the best option, another rubber will not work)
- Pliers (optional)

Manufacture:
Take a large paper clip, unbend it and bend it again, but in half:


Now we make a twisted handle (optional) and rubber mounts (leave a gap of 0.5 mm):



And the hardest part for stupid dials: putting on an elastic band. First, we stick in the rubber band for weaving as a whole, then we pull down one part of the rubber band. And repeat for the other end of the slingshot. It’s best to tie several elastic bands together, then the effect will be much stronger! (But due to the complexity of photographing this process, I will not show it)



Now let's take care of the shells: ordinary office trash will not work! We take a piece of paper and fold it this way: (the heavier and smoother the better)



Total:
We have created a weapon that can revive the boring lessons of geography! Weaving from gum? A crazy and useless girl’s business, another thing is to shoot from a slingshot! Shoot rubber bands? They instantly end, and the papers in the school heaps! We also sometimes collect shells after lessons (take care of nature, your mother lol ) This also reduces costs. In labor lessons, we sometimes make slingshots and sell to the lower grades! This is a source of income!
Here are my other wire slingshots (one with double elastic):

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51 a comment
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When I was in less, I made a donka gum and I shot the stick well.
0
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I shoot wire so that once folded is better.
+2
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for donka) yes, cool too, verified. They are still so thick there, that's generally super. You can thin twice, although it’s naughty alone)
0
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I also want to try the gum from the fishing rod for gum, which must be cast, we call the harvester on the street. I'm not a fisherman, but a friend said he would give rubber. I will try!
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Normal power cauterizes from five meters so that the bruise remains. Gloves are at home. I know how to do it. The rubber bands in the photo are really torn.
0
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cut a thin strip of rubber medical gloves, a fingertip, and even better from a “protective tool”)) And these rubber bands, which are shown in the photo, they “compress” very slowly and break quickly, so there is no power.
0
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I just made such an elastic band: I broke three elastic bands and tied it into one thin one. Power increased at times, but almost no strength at all after three four shots is torn. I think how to increase power without losing strength. nea
0
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I fastened 9 gum because the slingshot is big. One did the same (three gum). Shoots normally, but still more humane than the old. With pharmaceutical rubber band from two meters shot at an apple. The charge found somewhere about 3 centimeters from the surface.
Author 0
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It is necessary to take a few gum and tie together, then the power increases markedly, and the strength is lost ...
0
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Just made from rubber bands. The result is strange! At first glance, more humane than the pharmacy-rubber band. Nearby does not pierce even one cardboard wire beee . But I decided to check it on the newspaper. He folded up a piece of paper three times and fired from 1 meter. Pieces of newspaper fluttered well. : biggrin:
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I have the same, but a pharmaceutical gum.
Breaks fast boredom . And the idea with rubber bands is super! acute
For cartridges I advise a bent thin copper wire. From two meters, two cartons pierces through and through!
0
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Regarding the current in the flash .... Do not confuse the current with voltage !!! If we compare the electric current with the current of water in the river, then the size of the channel is the current, and the flow rate is the voltage! )))) At candles in the car - tens of thousands of volts, but the amperes there are a tiny fraction! Therefore, the blow is strong, but does not kill. (As in the shocker) Because it kills a strong current (tsunami), and it beats the voltage (jet from the "Karcher")))))))
It is a bit wrong, of course. There is interdependence, but by and large.
In your gun, the current will affect the weight of the projectile being thrown, and the voltage will affect the speed! Therefore, the current there is not particularly important. I think that's enough for a piezo lighter ...
And the “finger-type” battery can so calmly give out at its voltage a colossal current of 2 Amperes! It can be easily converted to several hundred volts with current in milliamps. What is being done.
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Dmitrij, About the piezoelectric element and the second contact:
Well, of course. In general (sorry for the explanation) CURRENT - from the word "flow", "flow" ... If it can not flow "from somewhere - somewhere", then it simply is NOT! Charged particles in their ordered movement need to "run out from somewhere and run somewhere")))). All power plants in the world have agreed to dig one pole into the ground, so if something happens, it can flow from one to the ground))))
In general, there is no current source with one wire.)))))
By the way ...I sometimes checked electricians when hiring: I pointed to a socket and asked: “Determine if there is current in it?” ... If he climbed behind an indicator screwdriver, this is not an electrician!)))). Because, in the outlet, the current appears ONLY when the circuit is closed. And before that, it is simply connected to the source, but there is no current! Nothing flows anywhere until you stick something into it ....))))))
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The source generally plays a mediocre role, you shorted the capacitor.
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a monster is not a monster, but somehow I shorted the wires, such an arc ... like a car battery, I’ve closed)) And the source is just a finger-type battery.
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Flash, this is first of all discharge an electrolytic capacitor that is charged by the converter. There is no kVolt, there is a usual voltage of 200-300 volts, with a very small current. Do not make a monster out of her.
: winked: At any current source, TWO "wiring". Well, two !!!
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Well, I don’t have such a technique)
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where are 2 from? There 1. Or the second - its basis?
+1
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"I’m almost 25 already, but it seems that life has been lived. Wink" .... Not ... it has not yet begun! )))))
You have everything else fromtell me!))))
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Not ... better battery ... This will be an unnecessary complication, as I think))))
By the way, have you tried a stun gun? kilovolts are also there.
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Not understood? What is there to close? There are 2 wires in the coil, and two wires in the piezo. What to close then?
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I still got a cool idea. As a power source for the flash, you can use a small solar panel, which can be inserted into the gun (well, or a gun, depending on size).

As an option, a generator can also be made out of a small motor, so that it turns the handle and the charge is there) Only get rounds of ammunition and that's all, shoot as much as you like. Oh, I was inspired, it would be necessary to collect such a miracle of technology)) Electromagnetic crossbow: wink:
+1
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of course ... there will be no power in comparison with the flash. Of course, if it is a kander with a very large capacity and charge it from 220V, then my dear mother withers: wink:

But can a piezoelectric element create an electromagnetic field in a coil? The first time I just hear that. There will be two wires, on which to supply power in this case? Short them or what? I don’t know this. And the lighter is similar
0
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So that's all I wrote about (including capacitors), everything is serious. I know a lot about this (you asked about it)? The question will only be in the power of the "gun."
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Yes, on professional cameras and now the flash is connected, it seems to be attached from above. But I do not know, there is only a lamp or a lamp with electronics.

Is there anyone older than that?) I’m almost 25 already, but it seems that life has been lived. : wink:
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A flash separately from the camera is more natural for me than the built-in flash. Although I’m not so old, but in comparison with some people on this site and in general a “boy with a slingshot”)))) (I’m 44), but I just mastered the photo when this “pop” was not there))))) . Then the flashes were separate, and each device had a standard mount for it. Only now I noticed that on modern devices there is no flash mount - you need to use the built-in weak ....
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No ... There was magnesium ... And you didn’t already make “explosive packets” of magnesium with potassium permanganate? In our forest the plane has been lying since the war. That we specially went to saw him. Break off a piece - and go home, work with rasps!))) Then mix the sawdust with potassium permanganate, tightly wrap it in a postcard - the “bomb” is ready! ))))
By the way, a wick! The "shell" itself in the form of a tube turned out.A hole was pierced with an awl, a match was applied to it with a head. The next match - a little lower along the first, even lower - the third, etc. .. And so everything was wound with threads, you get such a "chain" of match heads. You set fire to the last and throw it - there are just a couple of seconds until the match from the match is replaced by the flame of the last.
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you still remember when the powder on the saucer was set on fire, or what was there: wink:
0
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I also drew attention to the "camera" ....: wink: And everything is very simple - they no longer remember the times when the flash was not built into the camera ...
After all, the first time such a "miracle of technology" appeared in the eighties ... It seems that it was "Elikon-35", if I do not confuse ...
And it would be better, indeed, to look for exactly the old flash - it is many times more powerful than the built-in "fireflies" ..
0
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gas lighter, piezoelectric element?) To power the coil? Are you serious?))

No, it doesn’t. The capacitor is also small. If you charge a lot of capacitors from the battery, and then connect them in series, then yes.

Of course, you can experiment with a large voltage source, that is, just plug the system into the network.
But for portable use, the flash is perfect. It accumulates a very high voltage from the minimum current source (one battery), and then instantly gives it away. I experimented with her.

If you make a large gun, you can make several coils with sequential inclusion. Get a whole miniature Hadron Collider.
0
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For this (electronics), you can use not only (why do you call the camera?) Flash. Any similar high voltage source. For example, a strobe, to check the ignition timing of a car, battery lighters for gas, and for a very small “gun”, a piezoelectric element for a conventional lighter. You need to wind the coil with a very thin enamel wire. The more turns, the better.
Although you can conduct experiments with any voltage. Requires a direct current source (battery, battery), an electrolytic capacitor (corresponding parameters) and a switch (trigger). Naturally for each case, its own coil. And you are guaranteed success.
Author 0
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I don’t have very good electronics, but I’m dreaming of a Gauss cannon! If possible, be sure to add a camera!
0
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and how do you do with electronics? You can make a small gauss gun. I have a lot of all sorts of ideas, and implemented homemade products ... all the time there is no work to do)

We need an old camera, or rather a flash from it, and you can reel the coil yourself, you only need a copper wire and a tube. We turn off the flash (the lamp itself) and connect a coil instead. So that when you press the flash, a powerful electromagnetic field is formed.

As a shell, a steel ball (you can also have a cylinder, a piece of a bolt, a nail, a small arrow ...). It shoots very hard when experimenting, accidentally knocked out a window)) Anyway, an interesting thing. The coil needs to be made more authentic, the ball will accelerate as it moves to its center, here, ideally, the field should turn off. But you can pick up just need the distance from the coil to the ball.

One battery lasts for quite some time. It may be possible to assemble the flash circuit yourself. We need a powerful current pulse. Drawn for an ambulance.
Author 0
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Dmitrij,
Pneumatics there was an attempt to do ...
+1
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so then to delay, and this is on pneumatics) well, your option is also cool
Author 0
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I wrote above about the pipette test:
Pipette + bamboo tube (found on the street) + stacks + scotch tape + needles =: am:
-1
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a mini-version is a syringe, but it’s right to play a trick at home)) Take a syringe with a needle, carefully press a piece of chewed paper into the needle from the side of the plastic case so that it clogs the hole.

That's all, the needle is put on the syringe with a certain effort, the stronger it is put on, the stronger it will fire. And the syringe does not need to be squeezed quickly, it compresses smoothly, at a certain pressure the needle flies and flies ... Our carpet is oar on the wall, I loved shooting at it, it calmly gets stuck in 5 meters from the carpet))

You can make a target, and come up with a “needle-shooter” body to make it look like a gun. Or you can put a spring on the syringe so that it itself compresses it. He let go of the shot. Just do not need to take this weapon to school!)))
-1
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Complain
Cyril 517 (Approximately)! Well, you definitely can’t get it, it still depends on the thickness of the walls or the bottom. And which are very small, you lay a few pieces each, it turns out more voluminously (like a fraction). But fly with a screech, wow!
0
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And we shot stones with slingshots. There was a gravel pit near the village, respectively, all roads are covered with gravel - where you bend, there are "shells" ..)))).
But balls from large bearings were considered "deadly". They were looking for bearings near the quarry - apparently, after the repairs of the S-100 that worked there. Cracking the clip with a hammer, I got a splinter in my forehead, I ate deeply, then festered and cut the Old Man with a blade and picked it out. Since then, covered with rags before stabbing.)))))

I saw balls from balls, but already as an adult. We did not, because I saw the first plastic bottle when I was already married.))))). Well ... maybe just before the wedding)))))

And we also made air pumps from bicycle pumps. And the “school version” is from an empty ballpoint pen. The tube was cut off. A piston was made of a pin — the pin was straightened 90 degrees, and cotton was wound from one end so that the resulting piston fit snugly into the tube. Then chewed paper was inserted into the tube, rammed at the other end of the “piston”, resting the end of the tube on the table (there is a rounded end on the hairpin, as if with a ball). It turned out that the paper cork tightly clogged the end of the tube. Now, from the other end, if you insert a slobbery cotton piston and swing it sharply, this cork shot ....
Author 0
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5 by 5 mm? But not enough?
+2
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Yes, Aronia of course shot :)
0
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Apparently, I'm the oldest here. Cast-iron shells for a good slingshot (as described by Dmitrij) were cast-iron; they pricked old cast-iron onto 5 * 5 lobes (approximately). This sparrow just blew clean.
Author 0
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Have you been to shoot aronia? This is really cruel to the wall: am:
Shooter ... I started with it ... Just a fingertip and always a half of the neck of the bottle (so that when the fingertip was wrapped in the neck it was convenient to blow) ... I heard about the use of pipettes (in childhood) but the tests failed success. Nobody thought about the ball in our city. But I decided that the ball is more powerful. After testing, it was found:
The ball is really much more powerful.
It is stronger than a fingertip and can be shot with pebbles rather than mountain ash
When shooting, he crushes a ripe mountain ash
Put on the ball for a very long time (the only negative)
But before that, I replaced the neck from the bottle with the tube (the type shoots more precisely), but at the end there is a thread from the bottle, if the ball is put on to the end of the thread, the ball will never fly off when tensioned and it does not need to be held! I once shot pebbles at an iron can ... It pierces it well! But he was holding on to the ball ... One of the pebbles, before flying out of the ball, hit my hand. I hopped and swore softly for about ten minutes ... Then the skin swelled like a blister and blood accumulated inside.
And I also made myself a sliding tube: laughing:
Wrote a little in the wrong order, mixed up about the tube and about the ball, but you'll figure it out!
+2
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well ... this is a combat option, the sparrow fells the only way))

If we go further, we made wooden slingshots, cut powerful rubber bands. Still need a piece of leather or other similar material, an elastic band is attached to it. In total, the gum consists of two parts.

Such a slingshot shot with anything, stones, balls from bearings, it was even possible to shoot "shot" from the same small stones or balls. In general, a powerful thing. By the way, she shot perfectly with arrows.

And I remembered the "shooter" cool. It’s very good to shoot with mountain ash)) Take a bottleneck and put on a ball, you can use a fingertip or even a finger from a rubber glove. Everything, the "gun" is ready.
You shoot at the wall, from the mountain ash one wet trace remains, even now I remember the smell of mountain ash. Eh ... childhood))
0
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And we made aluminum. Only not from wire, but from insulated wire. (Remember, this white one? There used to be a lot of it.) They did not twist in the handle, they simply bent it. And there were no ringlets - they just cut insulation in a circle, pulled a piece, tied an elastic band and put it back on ... But they fired from them with brackets made of aluminum wire ...
This was not a "school option"))). School - as mentioned here, just an elastic band on the fingers, and the "ammunition" are like that ...
Author 0
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No, he said pro fingers with the letter V
And by the way, I can’t explain small how to make such a slingshot: belay: they are stupid and do not catch up
+1
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Then such slingshots were made of aluminum wire.
Author +1
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They also exploited, but they are not very convenient and inferior to the proposed slingshot
Author +1
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No, physics is sacred! The shells were spinning on it ... But the slingshot itself and the shells for it were completely invented by myself, without ever browsing the Internet.
0
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huh, well done, I remembered school days)) Shells were also collected on the floor) But our slingshot was simpler, it consisted simply of elastic. Put on two fingers V and forth)) And it’s easier to hide)

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