1. Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
    Dismiss Notice

Simple Coil Gun

Discussion in 'Electronic Projects' started by Someone Electro, Sep 3, 2005.

Thread Status:
Not open for further replies.
  1. gavrally

    gavrally New Member

    Joined:
    Nov 24, 2005
    Messages:
    1
    Likes:
    0
    any one thought of making a rail gun out of the same circit without the coil

    i know the basic principals and you can shoot ally plasma acroos a room
     
  2. reber

    reber New Member

    Joined:
    Feb 22, 2006
    Messages:
    3
    Likes:
    0
    Location:
    Bled - Slovenia
  3. Someone Electro

    Someone Electro New Member

    Joined:
    Sep 10, 2003
    Messages:
    2,579
    Likes:
    2
    Location:
    A boring village in Europe (slovene)
    I already sean that site.
    but thanks anyway
     
  4. dave

    Dave New Member

    Joined:
    Jan 12, 1997
    Messages:
    -
    Likes:
    0


     
  5. mikhail666

    mikhail666 New Member

    Joined:
    May 21, 2006
    Messages:
    3
    Likes:
    0

    can u please give me a layout diagram or a more detailed ckt diagram?
    im not as good as youll in electronics.
     
  6. Someone Electro

    Someone Electro New Member

    Joined:
    Sep 10, 2003
    Messages:
    2,579
    Likes:
    2
    Location:
    A boring village in Europe (slovene)
    You have all the information you need.

    If you know so litle you better stay awey becuse a coilgu means dealing whit high volategs at high curents.
     
  7. mikhail666

    mikhail666 New Member

    Joined:
    May 21, 2006
    Messages:
    3
    Likes:
    0
    i just want a layout diagram for the coil part. i know the rest.
    thanks anywys
     
  8. Someone Electro

    Someone Electro New Member

    Joined:
    Sep 10, 2003
    Messages:
    2,579
    Likes:
    2
    Location:
    A boring village in Europe (slovene)
    Ummmmm

    What?:confused:

    I dont realy understand what you want
     
  9. brihoo2k

    brihoo2k New Member

    Joined:
    May 16, 2006
    Messages:
    10
    Likes:
    0
    that thing is sweet maybe ill make one myself
     
  10. Someone Electro

    Someone Electro New Member

    Joined:
    Sep 10, 2003
    Messages:
    2,579
    Likes:
    2
    Location:
    A boring village in Europe (slovene)
    Feal free to.

    Get some caps of ebay.Get a big SCR or parallel lots.
     
  11. moody07747

    moody07747 Member

    Joined:
    May 16, 2005
    Messages:
    546
    Likes:
    0
    Location:
    NJ
    the foil in place of the coil is a nice effect too...try some steel wool as well

    be sure to do all those ouside though...huge fires will start in the house lol

    anyways heres a link to a site that has allot of high voltage projects along with coil guns

    http://4hv.org/news.php

    i believe you have to sign up to get to the boards there
     
  12. Someone Electro

    Someone Electro New Member

    Joined:
    Sep 10, 2003
    Messages:
    2,579
    Likes:
    2
    Location:
    A boring village in Europe (slovene)
    Yep its prety spectacular. Even whith 90Joules i got big sparks flying.

    I got a 880 Joule bank and the resulty should be prety big and loud.
     
  13. Nigel Goodwin

    Nigel Goodwin Super Moderator Most Helpful Member

    Joined:
    Nov 17, 2003
    Messages:
    39,322
    Likes:
    653
    Location:
    Derbyshire, UK
    ONLINE
    Perhaps I better get a map out?, and see how far you are from the centre of the UK :D

    I live pretty well dead centre of the UK, as far from the sea as you can get, in fact a village a couple of miles from me is one of a number who claim to actually BE the centre of the UK. Apparently it depends how you measure it!.
     
  14. Someone Electro

    Someone Electro New Member

    Joined:
    Sep 10, 2003
    Messages:
    2,579
    Likes:
    2
    Location:
    A boring village in Europe (slovene)
    Dont wory you live far enugh LOL:D
     
  15. muki55

    muki55 Member

    Joined:
    Aug 29, 2006
    Messages:
    44
    Likes:
    0
    try this one much more powerful coil gun
     

    Attached Files:

  16. freeskier89

    freeskier89 New Member

    Joined:
    Jul 9, 2005
    Messages:
    178
    Likes:
    1
    I am not sure that it is anymore powerful. The only advantage of that design is that it uses multiple stages, which can increase efficiency.

    4700uF at 25V contains much less energy than 10000uF at 100V. If you want you can use the formula Energy(Joules) = (CV^2)/2. Also, multistage designs require a lot more tweaking.
     
  17. Someone Electro

    Someone Electro New Member

    Joined:
    Sep 10, 2003
    Messages:
    2,579
    Likes:
    2
    Location:
    A boring village in Europe (slovene)
    Fist of all as menthones the powersuply is way to small
    2nd using a BJT transistor in a coilgun is stupid,becuse they can only handle about half times more pulse curent than continues.(somthing like 15A wont get a projetile very fast)
    3rd it has no protection diodes.The transistors and the counter IC would get fryed by the negative pulse.

    Also this is a open loop design,wich means it only times the thurn on times.A proper multistage guy has optointerupters to detect the projetiles postition and fire it at the ptimum time no mather the projetile size and weight.Closed loop designs need a lot of tweking just to get the projetile out of the barel and a lot more tweaking to get it to a good speed.

    EDIT:
    Noticed a nother thing.There is a 16V cap on a 25V suply line.Cap would pop.
     
    Last edited: Aug 31, 2006
  18. muki55

    muki55 Member

    Joined:
    Aug 29, 2006
    Messages:
    44
    Likes:
    0
    Small Coil Gun SCR trigger. huh!!!!!
     

    Attached Files:

  19. Someone Electro

    Someone Electro New Member

    Joined:
    Sep 10, 2003
    Messages:
    2,579
    Likes:
    2
    Location:
    A boring village in Europe (slovene)
    Thats a prety complicated sicruit just to drive a SCR.

    All i did was a voltage source and a resistor to gate.
     
  20. freeskier89

    freeskier89 New Member

    Joined:
    Jul 9, 2005
    Messages:
    178
    Likes:
    1
    I am not totally sure what you are trying to say, but yeah, I would recommend that design over the other one you posted, but I agree with Someone Electro, that the SCR drivin g part of the circuit could be a LOT simpler and it would work exactly the same. Its kind of like putting in a voltage regulator when you are just trying to saturate a BJT; you could use a vreg, but a resistor would do the same thing and save many components
     
    Last edited: Sep 6, 2006
  21. venomxx

    venomxx New Member

    Joined:
    May 7, 2007
    Messages:
    8
    Likes:
    0
    anyone still following this post ? :)
     
Thread Status:
Not open for further replies.

Share This Page