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Mini Railgun 330V 360yF 19J (Plasma Flash) II

by diseliprojects • 194,894 views

This is a test shoot of a small Railgun. I used only 3 photo capacitors (120yF) charged up to 330V. The energy is just 19J. I know, this is not a lot, but it works. (Sometimes) A big thanks goes to...

the whole point of a railgun is magnetic launching, so how did you launch a non magnetic metal? (alluminium).
He vaporized it, no launch was present. Hence why you see so much sparks, it's the plasma just pushing Al vapor out.
Railguns fire non ferrous metal.  Using "magnetic" metal as a projectile would slow it down due to eddy currents.  The magnetic field is created by electricity flowing from one rail through the projectile and into the other rail.
you should contact +The Slow Mo Guys so that they can film it in high speed
It's amaxing how a gun with a simple construction can shoot a projectile that fast. I'm building one right now and I hope it will be as good as yours
Pop quiz: what is wrong with the layout of the high current connections here?
@JackMeough666 it's yottafarad, he will blow the entire solar system!
you cant really show something in slo mo when yur camera only gets 3 frames of it
@bigbang308 you can get capacitors from disposable cameras and charging circuts also from disposable cameras, the circuts from the cameras have an led that comes on when its thru charging
On a final point, no tests have been apparently run on .50 calibre rounds, and currently they range 7 km. Not only is your science wrong your FACTS are wrong. I mean really, OZ? Really?
dude, nice pics!! how much did it cost to make this very tiny rail gun?
The MILITARY happen to be trying to use them as guns. Plasma is just as good a projectile in a railgun... until it hits the air, but that's not the point. Point is: this is a rail gun that fires plasma. That counts. They also tried to make coilguns that fired toroids of plasma from a satellite that would hold together through the atmosphere to hit hit something like enemy tanks so it flash converts to fast neutrons, killing the crew but leaving the vehicle for capture. Didn't work though.
what are the requirements for a good rail? i have 4 photo flash capacitors and mine wont shoot. do the rails have to be a certain size and what material did you use?
at :46 it looks like a repulsor blast.
You do mean µF right? If that's actually a yoctofarad capacitor...well it would be a hilariously small capacitor.
LOL It`s Misaka !!! Biri Biri !!!!
I used an single-use-camera flash circuit. powered by a simple 1.5V AA battery.
can you make one that can down the common housefly???, that would be like building the better mousetrap
@diseliprojects Yeah cause a railgun that shot gold bars would be real practical.
how does a railgun work? is manetism like a coil gun or is it purely charges? i dont rlly know, just guessing
@bigbang308 2. You can charge the capacitors by holding the (+) of the battery to the one end, and the (-) of the battery to the other end of the capacitor. Be careful, 5 Seconds after starting to charge the capacitor gives the capacitor a strong enough energy to shock you. They can even kill you, if they are fully charged. You discharge them by connecting the ends of the capacitors to each other, or discharge them slowly by using a resistor. I would not do discharge them with my fingers.
@JackMeough666 It should be u (Micro) Farads, at least that's what the disposable cameras use.
I think it is just set up as a demonstrational peice. If that is the case the aluminum actually works pretty well because it the aluminum is pretty much vaporazied by it so you dont have to really worry about it hitting any thing. Not that it would really damage much with such a low amount of power any way but still.
I think the aluminum foil should be replaced with a needle.... or a nail.
@Videogametourist maybe that you can kill the little one that fucks Megan Fox leg :D
thanks so the cap bank im getting is... ...hang on... ....972J... nice
I've got another question too: Many people doubt that this really is plasma, so is it real plasma?
aha... but the real question is can it kill a zombie !?
rail technology is used for launching small 50 calibre projectiles 40-50 kilometres using EMF and radiated projectiles all this shit on you tube is plasma technology not rail tech get your fucking science you gay cunts
@diseliprojects Pure iron pellets work great :) And, sparks only come from plasma generated since the alu-foil is thin and is relatively easy to melt.. I don't know if you actually could shoot anything with it, 'cause I'd think that the whole alu-pellet is molten in the process, making only shiny sparks but nothing else.. or? :P
@DrexelDragonO91 lmao the capacitors would be the size of a skyscraper.
I think you have to have some other metal than Al to shoot from a rail gun.
So the Foil isn't flashing itself?
Lol, I built one with nearly 3000J... that's over 150 times more powerful than this! Very nice work here though, it had good integrity. You should block off the back end to give it higher pressure though, that will immediately increase the muzzle velocity.
You are right. The left and the right rail produce a magnetic field. The third magnet will be the projectile. Because the current flows also thru the projectile. If the projectile movable, it will be accelerated. (movable short)
Thanks a lot mate. I'll ask a question now: Did you ever accidently touch the rails when the capacitor bank is charged, I think high voltage products are kind of scary ;)
each wire acts as a magnet and when the projectile is inbetween also acts like a magnet and all three magnets have the same poles facing each other so they push away from eachother but nevermind im pretty shure its lorentz force
Energy in Joules = Capacitance * Voltage ^ 2 E = C*V^2 E = (360/1000000)*330*330 E = 39 J Max. Not 972J
@LunaxxxYui whaha i started watchig these vids cause of her... her railgun coins go a bit slower then this touch haha
yeah because y is near u on the keyboard. He might just pressed a wrong button
I read the discussion below... Funny. justinhoman has the gist of it, Al is a non-ferrous metal and is not affected by magnetic force which is what both Coil AND Rail guns use to propel their rounds. It IS possible to have Al and Pb rounds however when they are using a ferrous metal sheath around them (a.k.a. Sabot rounds) which is what the military uses to fire its railgun rounds. Yes, yes I know that rail guns use a pulsing current down the rails to propel the round, it's still EM.
Well, the calculation of J is the following: I used 7 photo capasitors with each 120 yF at 330V. U = 330V C = 120yF x 7 = 840yF yF -> F is 1/1'000'000 C = 0.00084F E= (1/2) x C * U * U E= 45.738J E= 0.045738kJ I hope I didn't make a mistake. :o)
Actually, the direction isn't determined by the RHR. It goes away from the wires that feed power to the rails.
Are those 120 yotafarad capacitors, or 120 microfarad capacitors? Sorry, your info sort of throws me off with the "y". XD
I have to chime in here. What is happening here is not a rail gun. All he is doing is vaporising a piece of foil and since it has only on way to go the sparks shoot out that way. There is no projectile being propelled as there was not one loaded. In a rail gun part of the projectile is intended to vaporize to propel the rest. But here there is nothing left to propel. You could get the same result just by putting the same piece of foil between the two wires from the caps. There is no lorentz here
Wie hoch ist der Wirkungsgrad schätzungsweise und wie kommst du auf 350V? Die Railgun läuft ja mit DC, das meines Wissens relativ schlecht transformierbar ist.
Railgun uses EMF and if you know the hand rule you can determine where F (force) will be pointed, the two rails are charged and both generate electro-magnetic force in the same direction sending the projectile with great speed.
The problem is that the projectile of what ever material, must not be on fixed contact with the rails that makes a solid short and welds it in place it couldn't stand the current so it exploded instead. Power labs gun uses compressed air to slam the slug onto the rails at high speed. Good start though
how do you tell if the capacitors are fully charged?
1) there not as simple as one would think(i have one im making a video) 2) as long as you dont let it ark across your heart youll live 3)yes it is REAL PLASMA :) and now a question for diseliprojects: how dose one calculate "J"?
Can you kill an Informer with it? lol
No. A railgun is two rails one of which is charged negatively and the other positively, usually by connecting each in a DC circuit to a capacitor to release enough energy fast enough. Any conductive projectile, including a small mass of plasma, that completes the circuit allows current to flow and by the Biot-Savart law, generates opposing forces on the rails and the armature, and rails being static with those bolts through them, only the projectile can move. Sot it does so fast.
how do you know if the projectile fires outwards, not inwards?
I think bismuth is the wrong material to get a better result. You need a material with low electric resistance. Aluminium, copper, silver and gold should be better. ;o) Less resistance produce a higher magnetic field.
Reading this conversation, I feel flyingtoiletofdoom understands some things about Railguns, while justinhoman may confuses something with Coilguns, and even then the things he told are confusing.
can you give me a diagram//list of supplies of what you used to make this? I am interested in learning how to make one myself
You need to have an injector system for your rail gun to work bigger.
Can you kill a Transformer with it?
The formula for energy stored in a capacitor E=.5CV^2 Then by algebra one can solve for the capacitance: 38J=C(250V)^2 C=349uF
My bad, didn't rly pay attention, the EMF around the rails should be cone, and yes it goes along them away from the source. Nice gun m8!
what would happen if you put your hand infront of it? it dosnt seem like much would happen due to the small particle size.
@JackMeough666 The small y would actually be 'yokto' and not 'yotta' :D A yottafarad capacitor would be kinda awesome, though. Especially at that size.
;o) do it! it's very funny. if you need help, ask me.
how do u count out the jouls?
how fast is the bullet ? theoretically you can built a hand gun or a samll smg which works with raila n batterie
Looks After Effects'd If it does work, though, Pre-charged energy cells would be needed along with the ammo to make this a conceivable weapons system, so I don't think infantry will have use for a railgun in the near future.
I was gonna explain but aurora7641 did and in a better way then i could have. Basically know the charge (magnetic) of the projectile and point the rail gun magnets in the same direction as to push the projectile down the barrel in the way you would want it to go. Increases velocity, damage, and range by a giant amount. The Navy wants to have railguns on battleships that can fire at 200 + miles, which i believe current guns go about 20-25 miles maybe less.
you should make a bigger one :P one that travels at like amaizing velocities and can penetrate like inch thick steel lol.... Nice job though :)
@karatefreak97 because only non-magnetic metals work
funny what some people build in thier kitchen^^
@Videogametourist Yes!! He lied about the aluminum foil. It was actually a small shard of the AllSpark. XD
how powerfull is it? make a bigger version with actuall bullets and tell me the fps
if you have rechargable batteries, can you put the remaining Volts into the batteries again?
wonder what will happen if i made one of these for .177 crosman lead pellets? will the pellets melt?
Because obviously the kitchen stove is the best possible place to be doing this...
I know HOW a railgun works, I just want to know what you used to charge it... thanx
@ConnorXV Hey thanks for the add. I am looking for a possiblity to boost up my 9V battery up to some hundreds of Watts, can you help me? I might also be using two of the batterys (18V)
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