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Wireless Electric Detonator

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  1. #1
    PapaSmurf
    PapaSmurf is offline

    Default Wireless Electric Detonator

    OK, i suck at computer stuff but i know u guys don't

    so hlep me, i need to make an electric wireless detonator to safley ignite explosives from a distance.

    i have:

    1) a disposable camera (used to make tasers, and possibly ignite explosives)

    2) a soldering iron

    3) lots of solder

    4) access to radio shack and target, but no hobbie shop

    5) $10


    all help would be greatly appriciated

  2. #2
    HarveyH42
    HarveyH42 is offline
    Got a hunch this will turn into a "taboo-topic", but this is something of interest to me as well. Mostly, I want a cheap and easy, reusiable means to ignite firecrackers remotely. For the remote, I was thinking about modifying a cheap Big Lots R/C car, and using a 4017 to index through 10 shots. Basically the neighbor's cats (17 or so) like to use my yard and garden for a toilet. Some are sensitive to ultrasonic, some bright flashing light (xenon flash), all hate the firecrackers, which I have a huge quantity. Basically, it would be more effective and convient to push a button when I see them on the security monitor.

    Anyway, how much range are you looking at? How big an explosion? Not sure $10 will buy you much range or safety. Personally, if its a big boom project, I'd seriously consider a two channel system, one to arm, the other to fire.

    Since, I don't know the details, can only guess this is for some kind of hobby interest, not just a couple of tree stumps in the east pasture... Might consider timers, cheap enough to destroy...

  3. #3
    PapaSmurf
    PapaSmurf is offline
    Quote Originally Posted by HarveyH42
    Got a hunch this will turn into a "taboo-topic", but this is something of interest to me as well. Mostly, I want a cheap and easy, reusiable means to ignite firecrackers remotely. For the remote, I was thinking about modifying a cheap Big Lots R/C car, and using a 4017 to index through 10 shots. Basically the neighbor's cats (17 or so) like to use my yard and garden for a toilet. Some are sensitive to ultrasonic, some bright flashing light (xenon flash), all hate the firecrackers, which I have a huge quantity. Basically, it would be more effective and convient to push a button when I see them on the security monitor.

    Anyway, how much range are you looking at? How big an explosion? Not sure $10 will buy you much range or safety. Personally, if its a big boom project, I'd seriously consider a two channel system, one to arm, the other to fire.

    Since, I don't know the details, can only guess this is for some kind of hobby interest, not just a couple of tree stumps in the east pasture... Might consider timers, cheap enough to destroy...

    please i realy don't understand any of that, if your asking me to take apart a remote control car your gunna have to show me how to do it, i was thinking more along the lines of an modified wireless doorbell, oh and its way bigger then firecrackers, im prabably gunna use it mostly on rockets. so.... yah...

  4. #4
    Oznog
    Oznog is offline
    It's called an "electronic match". Look online. You need a battery with a decent current capacity, alkalines basically ok. You do not want to use high voltage of a camera flash. It will probably not work at all, just use batteries. The RC car's batteries would work.

    Nichrome wire is best, but in a pinch a very thin strand of copper wire stripped out of fine braided wire will probably work just not as reliably. Pass it across a match head.
    I thought what I'd do was I'd pretend I was one of those deaf-mutes.

  5. #5
    HarveyH42
    HarveyH42 is offline
    I didn't start this thread, but thanks for the info.

    The wireless doorbell is a better choice, and probably cheaper then my R/C car idea. Will have to shop around for one.

    I've searched "electronic match", and found they are mainly single use, for model rockets. I'm looking for something I can perminently wire up, and just replace the firecrackers.

    As far as the origional post goes, still think a two channel detonator would be a better solution, but explosives scare the crap out of me. If your rocket is live while you are wiring it up, there is some chance of a stray signal and unexpected launch. There so many RF devices operating these days, just not worth gambling on.

    I kind play with the idea of using steel wool for a ignitor, but its not the solution I'm looking for. The high humidity in Florida would rust it quickly, and would still need to replace it everytime. Definately cheap and easy though, a 9volt battery will light it up.

  6. #6
    Hero999
    Hero999 is offline
    Banned
    I hope you're not a terrorist and you're only planing to blow stuff up for fun.

    An easy way of doing this would be to use a tuned circuit connected to the gate of a thyristor to switch on the ignition device (whether it be an ignition coil or a piece of thin wire) and a small ocillator as a transmittor, the only problem is it could falsely trigger if you're not careful.

  7. #7
    HarveyH42
    HarveyH42 is offline
    The orginator of this thread wants to launch model rockets wirelessly, which was closely related to something I've been interested in lately.

    I'm only interested in terrorizing the neighbors cats, hopefully before they shit on my property (they have around 17 regulars, and of course any strays are welcome...). I don't hate cats or my neighbors, just stepping in their poorly buried feces. Anyway, this isn't my thread, so lets get back to model rockets.

    Was thinking insted of two seperate RC channels for safety, maybe put a counter in the reciever end. Push the button on the transmitter a couple of times, and up she goes.

    I've only seen a few launches, and know these things have a huge potential to mess you up bad. I imagine the engine exhaust would burn you badly, if you were any closer than a few feet when it lifted off. This is why suggest some sort of safety feature. One random event can mess up your life in a instant, but two or more in a row is unlikely.

    For my project, a simple on/off at the reciever should be good enough. If it should ignite a firecracker unexpectedly, there would little potential for physical injury (these are small firecrackers, not even powerful enough to blow up an orange off my tree).

  8. #8
    Oznog
    Oznog is offline
    Get a dog.
    I thought what I'd do was I'd pretend I was one of those deaf-mutes.

  9. #9
    PapaSmurf
    PapaSmurf is offline
    Quote Originally Posted by Hero999
    I hope you're not a terrorist and you're only planing to blow stuff up for fun.

    An easy way of doing this would be to use a tuned circuit connected to the gate of a thyristor to switch on the ignition device (whether it be an ignition coil or a piece of thin wire) and a small ocillator as a transmittor, the only problem is it could falsely trigger if you're not careful.

    im 15, btw does anyone know how to make a bomb that detonates if a certain amount of pressure is applied to it, like 100lbs

    j/k

    but seriousely, i would need a drawing of how to do it, heres a pic of the disposible camera chip


  10. #10
    HarveyH42
    HarveyH42 is offline
    im 15, btw does anyone know how to make a bomb that detonates if a certain amount of pressure is applied to it, like 100lbs

    j/k

    but seriousely, i would need a drawing of how to do it, heres a pic of the disposible camera chip
    ----------------------------------------------------------------------------

    I'm hoping that I've didn't understand... Guessing you aren't interested in an actual explosion, but a simulated one, with the flash from the disposiable camera.
    I've converted a few KodakMax to strobe, but it takes 8-10 seconds to charge between flashes.

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