Comments on: Homemade Semi-Automatic Coil Gun http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/ Firearms not Politics Mon, 22 Mar 2010 09:26:25 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: kunal http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/#comment-13381 kunal Fri, 21 Aug 2009 11:05:39 +0000 http://www.thefirearmblog.com/blog/?p=6222#comment-13381 can we use multistage with smaller projectiles and use rechargable li-ion (cellphone) batteries.they r usually rated 3.7v abt 1.1amp. and integrate them into the magazine. so when u change the magazine u change batteries too.reuse magazine by inserting new projectiles and charging batteries. can we use multistage with smaller projectiles and use rechargable li-ion (cellphone) batteries.they r usually rated 3.7v abt 1.1amp. and integrate them into the magazine. so when u change the magazine u change batteries too.reuse magazine by inserting new projectiles and charging batteries.

]]> By: Valhalla http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/#comment-9450 Valhalla Mon, 11 May 2009 03:07:12 +0000 http://www.thefirearmblog.com/blog/?p=6222#comment-9450 Have to wait a while then... gonna need some uber batteries. Maybe get some steel pipe and hack saw it. Have to wait a while then… gonna need some uber batteries.

Maybe get some steel pipe and hack saw it.

]]> By: Steve http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/#comment-9422 Steve Sun, 10 May 2009 05:08:25 +0000 http://www.thefirearmblog.com/blog/?p=6222#comment-9422 Valhalla, let me know when you have built one ;) Valhalla, let me know when you have built one ;)

]]> By: Valhalla http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/#comment-9421 Valhalla Sun, 10 May 2009 04:42:50 +0000 http://www.thefirearmblog.com/blog/?p=6222#comment-9421 Gah. Barrel didn't work. Here goes with periods instead of spaces. ....__ ../....\ .|.....| ..\__/ good enough I guess. Gah. Barrel didn’t work. Here goes with periods instead of spaces.

….__
../….\
.|…..|
..\__/

good enough I guess.

]]> By: Valhalla http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/#comment-9420 Valhalla Sun, 10 May 2009 04:41:36 +0000 http://www.thefirearmblog.com/blog/?p=6222#comment-9420 Should work... __ / \ | | \ __ / Take this 'barrel' as an example. Half of the projectile is magnetic, the other is not. Using the previous idea and this, it should get a good twist. Anyway, each of the 'sides' (Barrel sections would be smaller and all that jazz, most certainly not to scale or anything) act by themselves. Barrel Section 1 orientates round with pull from the top. S2 is one side to the right, etc and maybe going all the way around. Maybe the increments could get bigger as it goes along, as the round would be going faster. Though I didn't mention it before, I had envisioned rifling anyway. But the best part of a coil gun would be what you could shoot. Holy water for the vampires, anti-T viruses for the Zombies, pork fat for terrorists, blah blah blah. And shrapnel rounds, willed with crushed glass or something that would get around under the skin. Should work…

__
/ \
| |
\ __ /

Take this ‘barrel’ as an example. Half of the projectile is magnetic, the other is not. Using the previous idea and this, it should get a good twist.

Anyway, each of the ’sides’ (Barrel sections would be smaller and all that jazz, most certainly not to scale or anything) act by themselves. Barrel Section 1 orientates round with pull from the top. S2 is one side to the right, etc and maybe going all the way around. Maybe the increments could get bigger as it goes along, as the round would be going faster.

Though I didn’t mention it before, I had envisioned rifling anyway.

But the best part of a coil gun would be what you could shoot. Holy water for the vampires, anti-T viruses for the Zombies, pork fat for terrorists, blah blah blah. And shrapnel rounds, willed with crushed glass or something that would get around under the skin.

]]> By: Steve http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/#comment-9389 Steve Sat, 09 May 2009 14:21:32 +0000 http://www.thefirearmblog.com/blog/?p=6222#comment-9389 Valhalla, cool. What if one one half of the projectile was made from a material that was either magnetically charged or a material that was not as attracted to a magnet as the other side. Could that induce a spin? Valhalla, cool. What if one one half of the projectile was made from a material that was either magnetically charged or a material that was not as attracted to a magnet as the other side. Could that induce a spin?

]]> By: Valhalla http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/#comment-9387 Valhalla Sat, 09 May 2009 13:34:02 +0000 http://www.thefirearmblog.com/blog/?p=6222#comment-9387 Well, a magnet gets equal amounts of N and S, so it would split down the middle. If you then got one wire/rail that would pull only S and another for N and coiled them like DNA, then the bullet could go down the middle and be spinning. My other idea is a bit more like this: => bullet barrel sections are electrically magnetized until bullet passes into them. At that time they stop, so for a while all are pulling, then all but the first, second, third, etc. Don't know if this one could be made to spin. ________________________________________ |=>|__|__|__|__|__|__|__|__|__|__|__|__|__| |=>| |=>| |=>| |^^| <- spring Well, a magnet gets equal amounts of N and S, so it would split down the middle. If you then got one wire/rail that would pull only S and another for N and coiled them like DNA, then the bullet could go down the middle and be spinning.

My other idea is a bit more like this:

=> bullet

barrel sections are electrically magnetized until bullet passes into them. At that time they stop, so for a while all are pulling, then all but the first, second, third, etc.
Don’t know if this one could be made to spin.
________________________________________
|=>|__|__|__|__|__|__|__|__|__|__|__|__|__|
|=>|
|=>|
|=>|
|^^| <- spring

]]> By: Steve http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/#comment-9379 Steve Fri, 08 May 2009 22:21:15 +0000 http://www.thefirearmblog.com/blog/?p=6222#comment-9379 Valhalla, yea, in this gun it is just using one coil to push the projectile so it would, I am sure, touch the barrel. From what I understand of these guns, and my limited knowledge of physics, I think you are right. The lack of friction it a major advantage. On the other hand, they can't spin the projectile. Or can they? Valhalla, yea, in this gun it is just using one coil to push the projectile so it would, I am sure, touch the barrel. From what I understand of these guns, and my limited knowledge of physics, I think you are right. The lack of friction it a major advantage.

On the other hand, they can’t spin the projectile. Or can they?

]]> By: Wynboniface http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/#comment-9368 Wynboniface Fri, 08 May 2009 18:57:24 +0000 http://www.thefirearmblog.com/blog/?p=6222#comment-9368 So when they gonna regulate our energy weapons? LMFAO The garage projects are going to out do everything soon I figure if stuff like this is doable. Have to start somewhere. So when they gonna regulate our energy weapons? LMFAO The garage projects are going to out do everything soon I figure if stuff like this is doable. Have to start somewhere.

]]> By: Cmathews http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/#comment-9367 Cmathews Fri, 08 May 2009 18:56:08 +0000 http://www.thefirearmblog.com/blog/?p=6222#comment-9367 I made a coil-gun for my sophomore year science project. I used the flash assembly from a disposable camera and a coil of magnetic wire. Its a great way to experiment with electromagnetism. I was, however, approached by the SRO (student resource officer) and thoroughly questioned about my "projectile weapon". I am very impressed by this one, nice find! I made a coil-gun for my sophomore year science project. I used the flash assembly from a disposable camera and a coil of magnetic wire. Its a great way to experiment with electromagnetism. I was, however, approached by the SRO (student resource officer) and thoroughly questioned about my “projectile weapon”. I am very impressed by this one, nice find!

]]> By: Griffin http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/#comment-9364 Griffin Fri, 08 May 2009 18:33:17 +0000 http://www.thefirearmblog.com/blog/?p=6222#comment-9364 This is the future... This is the future…

]]> By: Valhalla http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/#comment-9361 Valhalla Fri, 08 May 2009 16:37:39 +0000 http://www.thefirearmblog.com/blog/?p=6222#comment-9361 Yea... though I don't see how he could store enough energy for a real coil gun, in which the projectile does not touch anything once in the barrel, but is held and propelled by magnetic force. I'd think a rail gun or traditionally fitting barrel section to allow for a 'pulse' of energy to travel down the barrel would work better. Just a thought. Hey, Steve, if you want I can email you a paint picture of what I mean. It's kinda a firearm... Yea… though I don’t see how he could store enough energy for a real coil gun, in which the projectile does not touch anything once in the barrel, but is held and propelled by magnetic force. I’d think a rail gun or traditionally fitting barrel section to allow for a ‘pulse’ of energy to travel down the barrel would work better.

Just a thought.

Hey, Steve, if you want I can email you a paint picture of what I mean.

It’s kinda a firearm…

]]> By: Vote For David http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/#comment-9353 Vote For David Fri, 08 May 2009 14:18:33 +0000 http://www.thefirearmblog.com/blog/?p=6222#comment-9353 Heat, from a milliseconds-long pulse? How hot could it get from one shot? Heat, from a milliseconds-long pulse? How hot could it get from one shot?

]]> By: Linoge http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/#comment-9351 Linoge Fri, 08 May 2009 12:27:32 +0000 http://www.thefirearmblog.com/blog/?p=6222#comment-9351 <blockquote>Until we can safety store vast amounts of electrical energy in a small package...</blockquote> ... And disperse the absurd amount of heat high-yield electromagnetic coils generate... In any case, though, for being a home-made project, that is pretty darned impressive.

Until we can safety store vast amounts of electrical energy in a small package…

… And disperse the absurd amount of heat high-yield electromagnetic coils generate…

In any case, though, for being a home-made project, that is pretty darned impressive.

]]> By: R.A.W. http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/#comment-9350 R.A.W. Fri, 08 May 2009 10:57:25 +0000 http://www.thefirearmblog.com/blog/?p=6222#comment-9350 Knock yourself out: http://www.coilgun.ru/ Knock yourself out:

http://www.coilgun.ru/

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