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Forums
4hv.org :: Forums :: Projects
« Previous topic | Next topic »   

mini (soon portable) ETG !!!

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Lomy
Tue Sept 04 2007, 04:10PM Print
Lomy Registered Member #789 Joined: Sun May 20 2007, 09:32AM
Location:
Posts: 21
 		heyho,
here's a little project i build today :))) . A mini mini mini ETG working with ~80j :) its triggered with a mini hf-ignition. ( like a teslacoil with just 10 sec. turns, which ionize the air , bla bla bla ... hope u know wot i mean :)(same as in a wig welding set )).

OK now time4pictures ;
Link2
Link2

and a little vid shooting with cotton wool :) :
Link2
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teslaguy
Tue Sept 04 2007, 04:16PM
teslaguy Registered Member #617 Joined: Fri Mar 30 2007, 07:29PM
Location: Buffalo NY
Posts: 49
 		I googled for etgs and i found nothing...Is it a coil gun or what? Can you post a circuit diagram and better explain its purpose please?
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Lomy
Tue Sept 04 2007, 04:41PM
Lomy Registered Member #789 Joined: Sun May 20 2007, 09:32AM
Location:
Posts: 21
 		a etg is an electic thermo gun, which use the mechanical energy of an elko to creat a little explosion and accelerate a projectile like a real gun : )
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Lomy
Thu Sept 06 2007, 08:25PM
Lomy Registered Member #789 Joined: Sun May 20 2007, 09:32AM
Location:
Posts: 21
 		here a new vid shooting with it ;)

Link2

its in case, portable, 5 sec charging time, 118j and strong enough to shot through paper ;)
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Lomy
Thu Feb 05 2009, 10:49PM
Lomy Registered Member #789 Joined: Sun May 20 2007, 09:32AM
Location:
Posts: 21
 		i finally finished the electrothermal gun =) after .. ahm over 1 year xD

total stored energy is 200j
the power level is really high, higher then any coilgun i build with the same energy input. i can shot throuh 2 thick tins and can make 1cm deep holes into houswalls (stone)

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here some pictures of the plasma flame coming out of the barrel:
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(the thing looking like a coil is pulstransformer for the trigger system)


and finally a demonstration vid:
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Ultra7
Thu Feb 05 2009, 11:36PM
Ultra7 Registered Member #1157 Joined: Thu Dec 06 2007, 12:11PM
Location: Houston, TX
Posts: 307
 		Totally cool!
I want to make one now.

I like the sound of it too.
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teslacoolguy
Fri Feb 06 2009, 04:17AM
teslacoolguy Registered Member #1107 Joined: Thu Nov 08 2007, 10:09PM
Location:
Posts: 792
 		Wow that's cool. Wouldn't mind building one myself smile
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rp181
Fri Feb 06 2009, 04:18AM
rp181 Registered Member #1062 Joined: Tue Oct 16 2007, 02:01AM
Location:
Posts: 1529
 		what are you using as a fuel?
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Lomy
Fri Feb 06 2009, 09:42AM
Lomy Registered Member #789 Joined: Sun May 20 2007, 09:32AM
Location:
Posts: 21
 		i use nothing as fuel, its a pur plasma etg. the caps are discharged by a little lightning.

here is a little schematic, which show you the funktion :
Link2
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rp181
Sat Feb 07 2009, 01:00AM
rp181 Registered Member #1062 Joined: Tue Oct 16 2007, 02:01AM
Location:
Posts: 1529
 		You mean a triggered spark gap? Or are you vaporizing some sort of metal?
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