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Registered Member #1545
Joined: Sun Jun 15 2008, 05:56PM
Location:
Posts: 8
I am interested in making a coilgun rifle, but I don't know where to start. I am rather new at this, and I am trying to find instructions for making a relatively powerful coilgun, about 300-400 fps. Can anyone give me a link to a good website where I can find instructions for making one?
Registered Member #1062
Joined: Tue Oct 16 2007, 02:01AM
Location:
Posts: 1529
Dont ask for instructions. Actually understand how it works, you should be able to design your own.
By rifle which do you mean: 1)has a long barrel 2)uses multiple coils 3) the barrel is riffled (to give projectile a spin)
If you mean: 1) its pointless, it has greater accuracy, but less speed. 2)A good choice, gives greater effeciancy and faster projectiles 3)pointless, projectile doesnt travel fast enough to use the rifiling effectivly.
Registered Member #1545
Joined: Sun Jun 15 2008, 05:56PM
Location:
Posts: 8
i mean a very accurate and relatively fast coilgun (or railgun) that can propel a 6mm metal bb at around 400 fps that can be used as a riffle, has a long barrel, and is not stationary.
Registered Member #1525
Joined: Mon Jun 09 2008, 12:16AM
Location: America
Posts: 294
The best place to start (in my opinion) is getting a disposable camera and making a little coilgun with the photoflash circuit. This will help you get familiar with the general concept and some of the challeneges that coilguns present. Also you are bound to learn a few lessons about not touching the capacitor leads (as I did) before you move to more dangerous voltages.
To have 400 to 500 fps output you are going to need LOTS of energy (in the kJ range). That is way more energy than a first time project should employ. My recommendations is to start small and build up from there.
That is exactly what I am doing. I am also brand new to this. I started with a camera flash coilgun and now I am working on something a little bigger for my second project, but still not that big.
I have found this website to be extremely helpful:
He does an excellent job of explaining theory in a way beginners like us can understand. He also has some awesome simulation applets that help you chose your design.
And of course the people here are very friendly and helpful, but it is best to have specific questions to ask them. Hope this helps
Registered Member #90
Joined: Thu Feb 09 2006, 02:44PM
Location: Seattle, Washington
Posts: 301
Good idea to try a coilgun based on photoflash caps. Alternatively, you might find some big power supply caps and a stud SCR build a low-voltage coilgun from that.
I just republished Barry's Coilgun Design Site with a new navigation scheme that I hope will make it much quicker and easier to find things. If you find broken links, kindly send me e-mail. If you have more coilgun questions, then post here in this forum or ask me directly.
Good luck! Barry I like cats, but I don't think I could eat a whole one.
Registered Member #222
Joined: Mon Feb 20 2006, 05:49PM
Location:
Posts: 96
I don't think there is actually any website that offers free detailed instructions for cookie cutter high energy coilguns. I could be wrong though. meow
Registered Member #90
Joined: Thu Feb 09 2006, 02:44PM
Location: Seattle, Washington
Posts: 301
There are very few cookie-cutter coilgun designs published on teh interweb. Perhaps because lots of approaches can work, but everybody starts with a different bag of parts. Certainly the capacitors available have a huge effect on what you build.
One of the few detailed designs is this one by Coilgun Systems (James Paul). It is brilliantly presented but it's not the simplest possible. Have a look and see what you think. Keep searching the web and put together the concepts and design that best fits your situation.
Cheers, Barry what if the Hokey Pokey is what it's all about?
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I am interested in making a coilgun rifle, but I don't know where to start
