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Forums
4hv.org :: Forums :: Electromagnetic Projectile Accelerators
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New Gauss Rifle

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Remus
Mon Apr 10 2006, 08:41PM
Remus Registered Member #342 Joined: Thu Mar 23 2006, 08:27PM
Location: TX, USA
Posts: 20
@ Simon: my bad. It wont happen again....I was a newbie.
@aahz, thanks for the boost converter, I'll give that a try.
@Yohan, Iwould prefer dealing with batteries, so that I dont blow my fingers up, or trip the breaker or somehting stupid, besides I live at home with my folks, and they wouldnt like it very much if I had random item plugged in the wall. I think Id rather stick with batteries. I was thinking about rechargeable batts tho...
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evilgecko
Mon Apr 17 2006, 09:00AM
evilgecko Registered Member #288 Joined: Mon Mar 06 2006, 07:52AM
Location: Palmerston North
Posts: 32
Yeah for some reason I like to use low voltage as well. Or though I do wonder when I end up stepping down 240V with a transformer then using a boost converter to charge a 330V cap bank up from the 12V output. Its not the clean green way but hey I somehow feel safer doing that.
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Remus
Mon Apr 17 2006, 06:30PM
Remus Registered Member #342 Joined: Thu Mar 23 2006, 08:27PM
Location: TX, USA
Posts: 20
Ok, so Ive been searching around the net for legal muzzle velocities. I cant find where I can get any so I can know if my coilgun design is legal. Is there anyone that can help....Im in Texas....thanks. frown
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Quantum Singularity
Sun Apr 23 2006, 01:54AM
Quantum Singularity Registered Member #158 Joined: Sun Feb 12 2006, 09:53PM
Location: Central Ohio
Posts: 282
I have never heard of any 'legal' muzzle velocities before. What are you trying to be legal for? For it not to be classafied a fiream? Well, some air rifles can out shoot some firearms and I dont think they are classified as anything more than any other bb gun, so I doubt muzzle velocity is the deciding factor? I guess it depends what you plan on doing with it. If your trying to make something you can bring into a school for a project then even a squirt gun can get you arrested. If you are going to shoot it off in the back yard outside town limits that you could be shooting an elephent gun and it wouldnt matter... I dont think this is the right place to ask about the nitty gritty on weapon laws as most here are not going to be knowledgable in those details, especially since it changes from place to place. I am not even sure were you could go for such information. I have tried asking local police officers questions like this and have either gotton diffifing answers or uncertainty from them. All something has to be is 'suspicious' to warrant a law officer questioning you.
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Remus
Mon Apr 24 2006, 07:18PM
Remus Registered Member #342 Joined: Thu Mar 23 2006, 08:27PM
Location: TX, USA
Posts: 20
Well, When I build it...I would be using it in my backyard in the town limits...I thought someone her would know since y'all do this stuff all the time. And yes, there are legal muzzle velocities. If the City of Chicago considers 700feet per second an assult weapon, then other states have their laws also. I dont think I d walk up to an officer and ask"how fast does a gun shoot to make it illegal?"lol. that would be silly. Tho, I havent tried the library of congress...
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Yohan
Tue Apr 25 2006, 12:36PM
Yohan Registered Member #194 Joined: Fri Feb 17 2006, 07:52PM
Location:
Posts: 19
I wouldn't let muzzle velocity legality stop you from beginning your project.
The only way you could jump over 300fps (paintball gun velocities) would be to build a multiple stage induction coilgun and you're going to need a whole lot more energy than what you've got available to you now.

Start building/learning and you'll see. If you hit 300fps with 330v caps and only this forum and an Elec/Emag class as your guide, I'll put my head between my legs and kiss my own arse. wink
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rupidust
Tue Apr 25 2006, 09:39PM
rupidust Banned
Registered Member #110 Joined: Fri Feb 10 2006, 12:23AM
Location: Banned City
Posts: 85
Yohan wrote ...
Start building/learning and you'll see. If you hit 300fps with 330v caps and only this forum and an Elec/Emag class as your guide, I'll put my head between my legs and kiss my own arse. wink
Does your offer extend to .22 to 1 gram range BBs? Because if it does, Remus could hit that speed under 200 Joules, forcing you to puckering up.
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Bjørn
Tue Apr 25 2006, 09:56PM
Bjørn Registered Member #27 Joined: Fri Feb 03 2006, 02:20AM
Location: Hyperborea
Posts: 2058
There was a warning further up to stay on topic and since no one paid attention to it I will lock the thread. When Remus has a some new specific questions that is not answered in the HvWiki or in a simple search he can start a new thread.
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