Welcome
Username or Email:

Password:


Missing Code




[ ]
[ ]
Online
  • Guests: 16
  • Members: 0
  • Newest Member: omjtest
  • Most ever online: 396
    Guests: 396, Members: 0 on 12 Jan : 12:51
Members Birthdays:
All today's birthdays', congrats!
Sonic (58)
kamelryttarn (46)


Next birthdays
11/30 arnsfelt (45)
11/30 jaysun92 (32)
12/02 Hax (39)
Contact
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.
Forums
4hv.org :: Forums :: Electromagnetic Projectile Accelerators
« Previous topic | Next topic »   

projectiles??

Move Thread LAN_403
lewylln
Fri Nov 05 2010, 05:39AM Print
lewylln Registered Member #3358 Joined: Mon Oct 25 2010, 09:47AM
Location:
Posts: 20
greetings and salutations forum
i have (finally) finished construction of the barrel for my rail gun (woooo) and everything is working perfectly. with the exception of when it comes to firing, the capacitors fully charge (11 camera flash caps) and the circuit, firing switch etc all function perfectly, the rails have minimal resistance and my projectile as far as i know conducts from previous attempts. HOWEVER because I'm only human there is roughly a 1/3mm gap either side of the projectile inside the barrel, and somehow this has stopped any current flowing through it. this is highly annoying and my projectile (a cut off from a 3 inch nail, blunted of course) is nearly impossible to modify without a forge. So my question to you guys is this, can you think of a good solution short of building a forge in my garage to this problem, i was thinking of some easy way to mass produce projectiles of the appropriate size seeing as from what i can tell its what a lot people seem to be doing (somehow)
any ideas and comments would be A LOT of help ^.^
Back to top
Artikbot
Fri Nov 05 2010, 08:47AM
Artikbot Registered Member #3247 Joined: Mon Sept 27 2010, 09:42AM
Location: Spain
Posts: 137
Where have you placed the projectile?
Back to top
GhostNull
Fri Nov 05 2010, 11:26AM
GhostNull Registered Member #2648 Joined: Sun Jan 24 2010, 12:45PM
Location: Australia
Posts: 291
Try a small ball of aluminium foil as your projectile. A nail is probably too big and heavy for your current capacitor bank.
Back to top
lewylln
Fri Nov 05 2010, 07:10PM
lewylln Registered Member #3358 Joined: Mon Oct 25 2010, 09:47AM
Location:
Posts: 20
ok that sounds logical, ill try it today and get back to you guys soon enough
and i placed the projectile between the two plates at the front? of the barrel where i have the wires from the cap bank hooked up
Back to top
Artikbot
Fri Nov 05 2010, 07:59PM
Artikbot Registered Member #3247 Joined: Mon Sept 27 2010, 09:42AM
Location: Spain
Posts: 137
I thought "D'oh it's a railgun not a coilgun" right after reading your reply x.x

So yes, in this case your projectile might be way too heavy for that energy. As GhostNull said, it's too heavy for that amount of energy.
Back to top

Moderator(s): Chris Russell, Noelle, Alex, Tesladownunder, Dave Marshall, Dave Billington, Bjørn, Steve Conner, Wolfram, Kizmo, Mads Barnkob

Go to:

Powered by e107 Forum System
 
Legal Information
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.