Comments on: Homemade Semi-Automatic Coil Gun http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/ Firearms not Politics Fri, 10 Feb 2012 22:19:07 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Mr John Smith http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/comment-page-1/#comment-55243 Mr John Smith Sat, 12 Feb 2011 17:24:17 +0000 http://www.thefirearmblog.com/blog/?p=6222#comment-55243 Hmm, interesting. That's just a coil gun. It's when they try to make a gauss rifle that size you should be scared. Difference is how a Gauss rifle (don't look at Wikipedia, they got it all wrong!), operates. Both use magnes, it's just that in a "real" Gauss rifle it uses electromagnets in series, around a thousand or more to fire off a large projectile. The ones that do exist are big bore, and to try and make a small one is.. well it's impossible without the correct tools. Not to mention how accurate the calculations have to be measured, and also the barrel has to be exact. Only the combination of say a scientist in physics and a weapons smith might be able to "cook" something together. Smallest diameter I have ever seen on a Gauss was about 12". It was a prototype however, and I guess that the idéa of having a smaller powerplant to charge it was out of the question. Both a coilgun and a Gauss rifle do accelerate the projectile, but a Gauss (real Gauss) does it better. /J.Smith Defiance Industries. Hmm, interesting. That’s just a coil gun. It’s when they try to make a gauss rifle that size you should be scared.

Difference is how a Gauss rifle (don’t look at Wikipedia, they got it all wrong!), operates. Both use magnes, it’s just that in a “real” Gauss rifle it uses electromagnets in series, around a thousand or more to fire off a large projectile.

The ones that do exist are big bore, and to try and make a small one is.. well it’s impossible without the correct tools. Not to mention how accurate the calculations have to be measured, and also the barrel has to be exact. Only the combination of say a scientist in physics and a weapons smith might be able to “cook” something together.

Smallest diameter I have ever seen on a Gauss was about 12″. It was a prototype however, and I guess that the idéa of having a smaller powerplant to charge it was out of the question.

Both a coilgun and a Gauss rifle do accelerate the projectile, but a Gauss (real Gauss) does it better.

/J.Smith Defiance Industries.

Please rate this comment: Thumb up 0 Thumb down 0
]]> By: kunal http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/comment-page-1/#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.

Please rate this comment: Thumb up 0 Thumb down 0
]]> By: Valhalla http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/comment-page-1/#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.

Please rate this comment: Thumb up 0 Thumb down 0
]]> By: Steve http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/comment-page-1/#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 ;)

Please rate this comment: Thumb up 0 Thumb down 0
]]> By: Valhalla http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/comment-page-1/#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.

Please rate this comment: Thumb up 0 Thumb down 0
]]> By: Valhalla http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/comment-page-1/#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.

Please rate this comment: Thumb up 0 Thumb down 0
]]> By: Steve http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/comment-page-1/#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?

Please rate this comment: Thumb up 0 Thumb down 0
]]> By: Valhalla http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/comment-page-1/#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

Please rate this comment: Thumb up 0 Thumb down 0
]]> By: Steve http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/comment-page-1/#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?

Please rate this comment: Thumb up 0 Thumb down 0
]]> By: Wynboniface http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/comment-page-1/#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.

Please rate this comment: Thumb up 0 Thumb down 0
]]> By: Cmathews http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/comment-page-1/#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!

Please rate this comment: Thumb up 0 Thumb down 0
]]> By: Griffin http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/comment-page-1/#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…

Please rate this comment: Thumb up 0 Thumb down 0
]]> By: Valhalla http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/comment-page-1/#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…

Please rate this comment: Thumb up 0 Thumb down 0
]]> By: Vote For David http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/comment-page-1/#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?

Please rate this comment: Thumb up 0 Thumb down 0
]]> By: Linoge http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/comment-page-1/#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.

Please rate this comment: Thumb up 0 Thumb down 0
]]> By: R.A.W. http://www.thefirearmblog.com/blog/2009/05/08/homemade-semi-automatic-coil-gun/comment-page-1/#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/

Please rate this comment: Thumb up 0 Thumb down 0
]]>