Building a rail gun

Butta Seeka · Posted: Apr 28, 2003 9:36 am Post subject: Building a rail gun

Ummmm well i need some planes for a rail gun so if anybody knows were i can get some good planes or anything relating to a rail gun that might help me i would appreciate it if u could tell me thanks

Leggester · Posted: Apr 28, 2003 9:37 am Post subject:

I don't think planes will help with rail guns.

The Government may be able to help with a linear accelerator.

Butta Seeka · Posted: Apr 28, 2003 9:40 am Post subject:

yes that is a good point misstyped o well, im sitting in class so i was in a hurry typing that, i just need one that would shoot like 10meters at best nothing real powerful.

Leggester · Posted: Apr 28, 2003 9:48 am Post subject:

Uh, so you've solved the power source issueu for a linear accelerator? That is what a Rail Gun is, a magnetically accelerated bullet.

WakeRyd · Outlaw Joined: 14 Jan 2003 Posts: 180 City: Richmond, VA

speak english, or maybe i smoked too much today and don't understand wtf you're talking about

Mariognarly · Addict Joined: 14 Jan 2003 Posts: 853

A buddy of mine found a deadly site on the internet that had step by step instructions and formulas on how to build a rail gun. Apparently this rail gun was like 100 feet long and could turn a small tank inside out with a bullet.

*chris* · Addict Joined: 12 Jan 2003 Posts: 982

yeah, rail guns r a little tough to make....i dont know if its even legal to make one, even if its just a tiny one. and like leggester said, power is big issue....d@mn accelerators eat lots of juice. as far as plans go, the movie ERASER had a nice little 3d animated model of it in the movie, but with no description of parts...but that was rifle-size.

OttoNP · Addict Joined: 13 Jan 2003 Posts: 848 City: MI

Well, first you need to make a big magnetic field. Then, you need some rails for the "rail" gun. Put the rails at 90 degrees to the field. Now, you need to get a metal that will turn into a conducting gas and/or a metal bar that can slide down the rails. Put some power to the rails and the bar or gas will slide forward, pushing your projectile out. Make sure you orient the magnetic field the right way, otherwise it will shoot backwards.

Nick
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LEEDS ASSEMBLY

Ryan_m · Addict Joined: 12 Jan 2003 Posts: 653 City: glen ellyn

last year we spent a hole month on rail guns in electronics... i think i can help.
You will need to start off with some coils. The more coils you use, the faster the rail gun goes. The magnetic field of a coil, when turned on will pull a magnetic object (bullet) to its center. So a rail gun nees to pull the bullet to its center, and right before it gets there needs to be shut off. That way the bullet wont be stoped in the center, and will continue to go onto the next coil. The tricky part is going to be getting this timing right. And also makign a good switch that will allow you to do so. Attached is a very crude scamatic diagram of what one may look like, if you want to base is off of that.

Ryan_m · Addict Joined: 12 Jan 2003 Posts: 653 City: glen ellyn

Bulding this isnt really worth it, if you really want to fool around with a coil, i would recomend using a tazer, which has to deal with the magnetic lines the coil produced when power is applied, and them collapsing back .

Chales · Guest

It's probably not my place to say this... but is this a joke?

Leggester · Posted: Apr 28, 2003 1:51 pm Post subject:

It should be. That was my guess. Other than someone not understanding what they are getting into.

Ryan_m · Addict Joined: 12 Jan 2003 Posts: 653 City: glen ellyn

chales, who is that question directed towards? what i have contributed is true. my electronics teachers is cool, even though we dont build them... he tells use how to and what not to help us relate stuff to something we can become intrested in. The only thing we have ever built in the class that could be considered a weapon, were very low powered tazers.

Jello John · Wakeboarder.Commie Joined: 12 Jan 2003 Posts: 1936

Planes: http://www.aso.com/

JHrod · Wakeboarder.com Freak Joined: 12 Jan 2003 Posts: 3144

a flux capictator is all you will need---just email the dr from back to the future -what was his name:???

earlcombearl · Posted: Apr 28, 2003 3:50 pm Post subject:

You need to put the infasis on the right salable.

criminally_minded · Posted: Apr 28, 2003 5:08 pm Post subject:

JHrod · Wakeboarder.com Freak Joined: 12 Jan 2003 Posts: 3144

thats it thanx crim

Bogger · Outlaw Joined: 10 Apr 2003 Posts: 134 City: Augusta, Ga

wow who knew i would find a good site with plane sales in a thread about rail guns.
thanks jello john

OttoNP · Addict Joined: 13 Jan 2003 Posts: 848 City: MI

Ryan_m,

That's not how a rail gun works. They are not that hard to build, but they are not as cool as you'd think. Here's a very crude picture. On the left side of the picture you make a magnetic field going up and down. You can do this using coils, to make the field more powerful you can put something in the center of the coils, like iron. Now, on the right is the top view. You have the rails (thus railgun), and the bullet. You apply a voltage to the rails and whatever is connecting them will have an electromagnetic force. This could be the bullet itself or a conductive gas behind the bullet.

If you put 20 amps through a 200 wrapped coil with an iron core that is .5 m long, you can make a magnetic field of 2.01 tesla. If you put the same 20 amps through the rails and the rails are 30 mm apart, you'd get a force of only .12 Newtons (.027lb). A weaker typical gun will put out 363 N (81lb) of force. The above example is probably about the best you could do, if you increase both the coil current and rail current to around 1000 amps you'd be close to the force of the weaker gun.

Nick
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OG KUSH PICTURES

tyybo · Soul Rider Joined: 02 Mar 2003 Posts: 340 City: Fargo

lol what the hell is a rail gun, are you goin star wars on someones ass or somethin?

OttoNP · Addict Joined: 13 Jan 2003 Posts: 848 City: MI

They supposedly had one in Eraser. You guys are seriously thinking this is more technical than it really is. Basically it is using magnets and electricity to shoot something.

They are easy to make, it is just hard to make one that would be better than a normal gun.

Nick
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ROLL BLUNTS