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Posted: 6/18/2009 5:30:10 AM EST
Holy crap this is awesome. Needs moar megawatts, but a damn good start!

http://www.techeblog.com/index.php/tech-gadget/student-builds-bolt-action-portable-coil-gun-in-woodshop
Link Posted: 6/18/2009 5:36:07 AM EST
Surprised he wasn't kicked out of school for that one.
Link Posted: 6/18/2009 5:38:46 AM EST
Well done.
Link Posted: 6/18/2009 5:42:49 AM EST
[Last Edit: 6/18/2009 5:43:04 AM EST by Harvster]
Originally Posted By evo462:
Surprised he wasn't kicked out of school for that one.


Yeah, he needs some time at a re-education camp, murderer in training that one is.
Link Posted: 6/18/2009 5:47:43 AM EST




Which Arfcommer's kid is this?
Link Posted: 6/18/2009 5:49:57 AM EST
Link Posted: 6/18/2009 5:52:02 AM EST
He needs some bigger caps and a couple sets of 4s3p 20c lipo packs. 250 amps of portable power, anyone?
Link Posted: 6/18/2009 5:54:40 AM EST
Cool, what was he using for projectiles? Power source? Unable to see video here.
Link Posted: 6/18/2009 5:55:06 AM EST
rail gun????? this kids got some future working somewhere...
Link Posted: 6/18/2009 5:55:54 AM EST
Originally Posted By Gravity_Tester:
He needs some bigger caps and a couple sets of 4s3p 20c lipo packs. 250 amps of portable power, anyone?


Wouldn't resistance and heat pose an issue on something so rudimentary and portable?
Link Posted: 6/18/2009 5:57:43 AM EST
I've read that true high velocity rail guns (velocity comparable to a firearm) don't last more than a few shots.
Link Posted: 6/18/2009 5:58:20 AM EST
Quite a few kids have made these... Although this is certainly one of the more impressive ones.
Link Posted: 6/18/2009 5:59:06 AM EST
Isnt the future of Naval gunnery a rail type weapon?
Link Posted: 6/18/2009 6:11:33 AM EST
Tag for Box 'O Truth results...
Link Posted: 6/18/2009 6:14:58 AM EST
Originally Posted By 1Andy2:
I've read that true high velocity rail guns (velocity comparable to a firearm) don't last more than a few shots.


Why is that?
Link Posted: 6/18/2009 6:17:34 AM EST
nice
Link Posted: 6/18/2009 6:18:14 AM EST
Nice job
Link Posted: 6/18/2009 6:19:16 AM EST

Originally Posted By Sleepy1988:
Originally Posted By 1Andy2:
I've read that true high velocity rail guns (velocity comparable to a firearm) don't last more than a few shots.


Why is that?

I'm pretty sure its the heat thats generated. Which is why they aren't being used more often.
Link Posted: 6/18/2009 6:22:20 AM EST
From Wiki

http://en.wikipedia.org/wiki/Railgun

A very large power supply providing, on the order of, one million amperes of current will create a tremendous force on the projectile, accelerating it to a speed of many kilometres per second (km/s). 20 km/s has been achieved with small projectiles explosively injected into the railgun. Although these speeds are theoretically possible, the heat generated from the propulsion of the object is enough to rapidly erode the rails. Such a railgun would require frequent replacement of the rails, or use a heat resistant material that would be conductive enough to produce the same effect.



Link Posted: 6/18/2009 6:25:39 AM EST
nice home made rail gun. glad to see school isn't a total waste today.
Link Posted: 6/18/2009 6:29:42 AM EST
Originally Posted By C-lxngtn:
Originally Posted By Gravity_Tester:
He needs some bigger caps and a couple sets of 4s3p 20c lipo packs. 250 amps of portable power, anyone?


Wouldn't resistance and heat pose an issue on something so rudimentary and portable?


It'd probably get a bit toasty, but unless he was shooting a whole bunch it should be manageable. Hell, some of the scale electric RC guys aren running 1/3 scale planes at around 2500 watts continuously...

Link Posted: 6/18/2009 6:31:28 AM EST
Introducing the newest Mythbusters intern!
Link Posted: 6/18/2009 6:34:35 AM EST
Wonder if LaRue would hire him?
Link Posted: 6/18/2009 7:03:21 AM EST
fuckin awesome.. kid made a rail gun... wait till the libs hear about this.. hope he doesnt have a dog
Link Posted: 6/18/2009 7:10:27 AM EST
The true hero in that story is the teacher who had the balls en ugh to let him do that....smart kid, glad he is on our side.
Link Posted: 6/18/2009 7:12:59 AM EST
[Last Edit: 6/18/2009 7:15:43 AM EST by AeroE]
Link Posted: 6/18/2009 7:27:39 AM EST
Holy DARPA college grant batman!
Link Posted: 6/18/2009 7:32:50 AM EST
that kid probably just secured a scholarship at MIT with that thing.

he's probably also going to get some looks from DARPA research recruiters.



interesting project. I built a clock and this kid builds a frigging rail gun.
Link Posted: 6/18/2009 7:39:26 AM EST
Originally Posted By stangboy555:

Originally Posted By Sleepy1988:
Originally Posted By 1Andy2:
I've read that true high velocity rail guns (velocity comparable to a firearm) don't last more than a few shots.


Why is that?

I'm pretty sure its the heat thats generated. Which is why they aren't being used more often.


This is a coilgun, slightly different beast.

Projectile doesn't come into contact with the accelerator coils in a coilgun.
Link Posted: 6/18/2009 7:41:44 AM EST

Originally Posted By Rogue-Sasquatch:
Originally Posted By stangboy555:

Originally Posted By Sleepy1988:
Originally Posted By 1Andy2:
I've read that true high velocity rail guns (velocity comparable to a firearm) don't last more than a few shots.


Why is that?

I'm pretty sure its the heat thats generated. Which is why they aren't being used more often.


This is a coilgun, slightly different beast.

Projectile doesn't come into contact with the accelerator coils in a coilgun.

Yeah, but the question was about Rail Guns.
Link Posted: 6/18/2009 7:55:29 AM EST
[Last Edit: 6/18/2009 7:56:10 AM EST by Atomic_Ferret]
I wonder what kind of rate of fire he could get out of that thing.

Select fire would be cool. (probably battery or capacitor limited for now)

Also, not technically a firearm.

Wonder what his screen name is ?
Link Posted: 6/18/2009 7:57:48 AM EST
Coilguns cant reach the kind of velocity that railguns can, they are however easier to make.
Link Posted: 6/18/2009 8:00:07 AM EST
Originally Posted By stangboy555:
From Wiki

http://en.wikipedia.org/wiki/Railgun

A very large power supply providing, on the order of, one million amperes of current will create a tremendous force on the projectile, accelerating it to a speed of many kilometres per second (km/s). 20 km/s has been achieved with small projectiles explosively injected into the railgun. Although these speeds are theoretically possible, the heat generated from the propulsion of the object is enough to rapidly erode the rails. Such a railgun would require frequent replacement of the rails, or use a heat resistant material that would be conductive enough to produce the same effect.





Technology will eventually evolve to make the idea practical.
Link Posted: 6/18/2009 8:05:06 AM EST
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