If you need assistance, please send an email to forum at 4hv dot org. To ensure your email is not marked as spam, please include the phrase "4hv help" in the subject line. You can also find assistance via IRC, at irc.shadowworld.net, room #hvcomm.
Support 4hv.org!
Donate:
4hv.org is hosted on a dedicated server. Unfortunately, this server costs and we rely on the help of site members to keep 4hv.org running. Please consider donating. We will place your name on the thanks list and you'll be helping to keep 4hv.org alive and free for everyone. Members whose names appear in red bold have donated recently. Green bold denotes those who have recently donated to keep the server carbon neutral.
Special Thanks To:
Aaron Holmes
Aaron Wheeler
Adam Horden
Alan Scrimgeour
Andre
Andrew Haynes
Anonymous000
asabase
Austin Weil
barney
Barry
Bert Hickman
Bill Kukowski
Blitzorn
Brandon Paradelas
Bruce Bowling
BubeeMike
Byong Park
Cesiumsponge
Chris F.
Chris Hooper
Corey Worthington
Derek Woodroffe
Dalus
Dan Strother
Daniel Davis
Daniel Uhrenholt
datasheetarchive
Dave Billington
Dave Marshall
David F.
Dennis Rogers
drelectrix
Dr. John Gudenas
Dr. Spark
E.TexasTesla
eastvoltresearch
Eirik Taylor
Erik Dyakov
Erlend^SE
Finn Hammer
Firebug24k
GalliumMan
Gary Peterson
George Slade
GhostNull
Gordon Mcknight
Graham Armitage
Grant
GreySoul
Henry H
IamSmooth
In memory of Leo Powning
Jacob Cash
James Howells
James Pawson
Jeff Greenfield
Jeff Thomas
Jesse Frost
Jim Mitchell
jlr134
Joe Mastroianni
John Forcina
John Oberg
John Willcutt
Jon Newcomb
klugesmith
Leslie Wright
Lutz Hoffman
Mads Barnkob
Martin King
Mats Karlsson
Matt Gibson
Matthew Guidry
mbd
Michael D'Angelo
Mikkel
mileswaldron
mister_rf
Neil Foster
Nick de Smith
Nick Soroka
nicklenorp
Nik
Norman Stanley
Patrick Coleman
Paul Brodie
Paul Jordan
Paul Montgomery
Ped
Peter Krogen
Peter Terren
PhilGood
Richard Feldman
Robert Bush
Royce Bailey
Scott Fusare
Scott Newman
smiffy
Stella
Steven Busic
Steve Conner
Steve Jones
Steve Ward
Sulaiman
Thomas Coyle
Thomas A. Wallace
Thomas W
Timo
Torch
Ulf Jonsson
vasil
Vaxian
vladi mazzilli
wastehl
Weston
William Kim
William N.
William Stehl
Wesley Venis
The aforementioned have contributed financially to the continuing triumph of 4hv.org. They are deserving of my most heartfelt thanks.
Registered Member #179
Joined: Thu Feb 16 2006, 02:08AM
Location: Hagerstown, Maryland - Close to Prime Outlets
Posts: 287
Hi all! This thing will be remote control and mechanically triggered...I don't want to be near whatever is hooked to it! I'm thinking giant copper rod, spring loaded, with a release pulled by an RC servo that I trigger via remote control. The giant spring will pull the rod into a giant copper plate to complete the circuit.
The caps are wired this way because it was cleanest, and they are 10 separate banks of 10 in parallel (each string weighs a ton, and I'm not a huge person to lug a massive bank around, so 10 sets are good for me!!). This gives ample flexibility, though with induction large capacitance isn't very useful since the platter is far away rather quickly and all extra energy is wasted...so I figure more volts, less uF, so it's a really short, HUGE pulse....I suspect my first few coils might detonate until I figure out how large they must be to absorb this much energy.
I'm also thinking coin shrinking might be in my sights
Registered Member #690
Joined: Tue May 08 2007, 03:47AM
Location: New Jersey, USA
Posts: 616
Coin shrinking, right...
I saw a pic of a coin shrunk w/ a 12kJ bank that compressed the coin so much it ended up rod-shaped, with the bond between the copper and nickel in the coin broken so the two metals were clearly separated. Wonder what 24kJ will do?
On another note, what kind of sound will this thing make when that spring-loaded copper rod hits the plate? I'm sure it will be epic...
Registered Member #8
Joined: Thu Feb 02 2006, 04:34AM
Location: Harlowton, MT, United States
Posts: 214
Very nice looking capacitor bank, but what sort specs do they have? I hope they are actually worthy of the task. Are they pulse rated? Are they fast? A lot of people just use computer grade... If there's a 1% chance of a cap failing and you have 100 caps in a bank, chances are one will fail every shot.
Have you considered making a multi-stage gun with these? That would be ideal since you have so many, and thus so many possibilities to arrange them.
Registered Member #179
Joined: Thu Feb 16 2006, 02:08AM
Location: Hagerstown, Maryland - Close to Prime Outlets
Posts: 287
These are the same brand and type of caps that I've been using in my 3.5kj bank, never a failure and awesome discharge rates as can be seen in my induction launcher videos
Registered Member #158
Joined: Sun Feb 12 2006, 09:53PM
Location: Central Ohio
Posts: 282
Nice job man... but I fear the biggest challenge will be designing a coil to withstand that energy. I've talked to Bert H a few times big induction launcher design... one thing I think I can tell you if your seriously going to blast all that into a single stage your not going to be able to epoxy up a coil and have it hold together... it wont. You might have to design it with something like a thin layer of something compressible between the turns, I forget exactly what he told me off hand but something along the lines of teflon tape.
Have you given any thought to making something multi stage? Thats something I hope to work on in the future... I think if a good efficient design can be made for IL's to be multi stage would mean a lot.
This site is powered by e107, which is released under the GNU GPL License. All work on this site, except where otherwise noted, is licensed under a Creative Commons Attribution-ShareAlike 2.5 License. By submitting any information to this site, you agree that anything submitted will be so licensed. Please read our Disclaimer and Policies page for information on your rights and responsibilities regarding this site.
[moved] 24,000j Capacitor Bank (Now Complete)
