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Simple timer for IEDs

  1. We'reAllBrownNosers Tuskegee Airman
    I had this idea for a buoancy timer. Back on totse, some people came up with the idea to use two close pins held apart, with wires attached, so that when they closed, the wires would connect, completing a circuit and heating a light bulb filament which ignites an explosive charge. When held open, the close pin is frozen in water. So once the water melts, the pin closes and the explosion occurs. Problem is that this is not very predictable especially in cold weather. Using a similar concept, a hole can be poked in one container(container A), with a small weight in it, so that once the container that container A is sitting in (container B) is filled with a fluid, container A gradually sinks, allowing wires to touch and complete a circuit. This can be used with a liquid that doesn't easily freeze, so it's much less affected by temperature. Very precise and predictable timing. Easy to put together. Yep, some people will say 'omgzbongoz bombs r bad' and it's a "kewl" idea. That's why I'm posting it here. Where all the other shitty messed up ideas go.

    EDIT: container B can obviously also be the only one with a hole in it. That may work better. Pull a thumb tack out of it or something and pour water or whatever liquid up to a certain level. Thumb tack is likely to take forever though unless there's sufficient weight in container A to force water out. You'll have to adjust it to get the right timing.



    Originally posted by Narc Yeah you know water conducts electricity tho right?


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    Myself and other totse members had tried the ice timer. Works quite well. I scared the shit out of my brother once by attaching one to some fireworks, left it in the barbeque pit and forgot it was there. He took a nap in the hammock and it went off while he was asleep. He was convinced I was outside sneaking around messing with him and it was dark. I explained to him I had forgotten about it. It was a hilarious coincidence... As someone pointed out, you'll need more power for the water's conductivity to be a problem. Much bigger battery required. Use a 9 volt and you're good, but if it's cold enough outside, it may take forever to melt, and then possibly drain the battery, so you'll need a fully charged battery.

    Originally posted by Narc You wanna risk your life on that?


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    It's not dangerous at all with the ice timer, so long as you're using the right filament. You'll need quite a bit more juice going through it in order to get the filament hot enough to ignite a pyrotechnic mix or primary. You can test this out by not attaching any pyrotechnic mix or primary, and put your fingers on the filament. You won't feel any noticeable heat. Try a thermometer if you want to be sure. Brake light bulb + 9 volt battery. Gun powder for example, is going to take quite a bit more heat than anything you'd get with that small amount of current flowing through the ice. Certain primary explosives are quite heat sensitive compared to others, but even those aren't going to be a problem. If you're really paranoid, attach a length of fuse to the filament, and first check with thermometer.

    Originally posted by aldra clothes pins?

    electronics are so simple and cheap to come by nowadays it'd be easiest to just run an egg timer's alarm pins to a relay. if you want to use a mechanical timer an old trick was to attach contacts to the hands on a clock so that the circuit completes when they touch, or I guess putting contacts into an hourglass (filled with conductive powder) so that it completes when it fills to the point where the pins are

    Everyone already knows about those methods though. The purpose of this is just mostly something new, which doesn't leave as much evidence.
  2. omn5;pvl Houston
    SWIM once used a device similar to this to start a fire and burn down a vacant house, he said it was pretty fun
  3. We'reAllBrownNosers Tuskegee Airman
    Yeah, should give the perp("pyro") plenty of time to get away, and leave minimal evidence.

    Where is stupid noob anyways?

    Now that I think about it, there's no need for a tac, just pour the liquid in when you're ready, and connect a battery and gtfo.

    The world trade center bombing that used urea nitrate plus concentrated h2o2 had this really long shitty fuse, and they literally had to run out of the parking garage. Amateurs.
  4. AngryOnion Big Wig [the nightly self-effacing broadsheet]
    You can also use cigarettes as delayed fuse timer,just light a ciggy poke a hole through it and stick the fuse through.
    The following users say it would be alright if the author of this post didn't die in a fire!
  5. omn5;pvl Houston
    Originally posted by We'reAllBrownNosers Where is stupid noob anyways?

    He was posting here last year
  6. aldra Dark Matter [my considered impending distributor]
    clothes pins?

    electronics are so simple and cheap to come by nowadays it'd be easiest to just run an egg timer's alarm pins to a relay. if you want to use a mechanical timer an old trick was to attach contacts to the hands on a clock so that the circuit completes when they touch, or I guess putting contacts into an hourglass (filled with conductive powder) so that it completes when it fills to the point where the pins are
  7. GGG Self Important
    Question: Is making these devices illegal for the most part? Or could you build and detonate shrapnel laden bombs peacefully and legally in your own backyard.
  8. aldra Dark Matter [my considered impending distributor]
    pretty sure even talking about it is illegal under anti-terror laws in most western countries


    just the trigger alone is probably ok as long as it can't be linked to terrorism
    The following users say it would be alright if the author of this post didn't die in a fire!
  9. GGG Self Important
    Originally posted by aldra pretty sure even talking about it is illegal under anti-terror laws in most western countries


    just the trigger alone is probably ok as long as it can't be linked to terrorism

    The thought of this conversation getting one of the Europeans on here on trouble makes me giggle. You can buy books on bomb building/weapon making at the store here.


    Had to google it and theres some 50mg law for explosives here and has been since 1966. So I guess you can use anything as long as it's under 50mg. Dunno the extent of what this applies to but if it extends to LSD you can legally blow your mind huehuehue
  10. aldra Dark Matter [my considered impending distributor]
    Originally posted by GGG The thought of this conversation getting one of the Europeans on here on trouble makes me giggle. You can buy books on bomb building/weapon making at the store here.

    are you not in the US anymore?
  11. Narc African Astronaut [connect my yokel-like scolytidae]
    Originally posted by We'reAllBrownNosers I had this idea for a buoancy timer. Back on totse, some people came up with the idea to use two close pins held apart, with wires attached, so that when they closed, the wires would connect, completing a circuit and heating a light bulb filament which ignites an explosive charge. When held open, the close pin is frozen in water. So once the water melts, the pin closes and the explosion occurs.

    Yeah you know water conducts electricity tho right?


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  12. Originally posted by AngryOnion You can also use cigarettes as delayed fuse timer,just light a ciggy poke a hole through it and stick the fuse through.

    amateurs.

    professionals use mosquito coils.
  13. Originally posted by Narc Yeah you know water conducts electricity tho right?


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    only a few milivolts.

    not enough to ignite anything.
  14. Narc African Astronaut [connect my yokel-like scolytidae]
    Originally posted by vindicktive vinny only a few milivolts.

    not enough to ignite anything.

    You wanna risk your life on that?


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  15. Narc African Astronaut [connect my yokel-like scolytidae]
    I'll supply the ice cubes


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  16. Originally posted by Narc You wanna risk your life on that?


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    no risk because i know science and mathematics.

    risks only befall those who dont either science or math. or both.
    The following users say it would be alright if the author of this post didn't die in a fire!
  17. Narc African Astronaut [connect my yokel-like scolytidae]
    Originally posted by GGG The thought of this conversation getting one of the Europeans on here on trouble makes me giggle. You can buy books on bomb building/weapon making at the store here.

    In trouble how?

    I was making these things when I was about 13.


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  18. aldra Dark Matter [my considered impending distributor]
    Originally posted by Narc Yeah you know water conducts electricity tho right?

    the salt/s in it does. drinkable water is fine, get distilled if you're worried but regardless, you're not dealing with particularly high voltages anyway
    The following users say it would be alright if the author of this post didn't die in a fire!
  19. Narc African Astronaut [connect my yokel-like scolytidae]
    I'm still saying there are much safer ways of doing this.

    You could easily imagine an ice cube slipping out at the wrong moment anyway.



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  20. Narc African Astronaut [connect my yokel-like scolytidae]
    Using hydrochloric acid to eat away a metal wire would be better. Just get the right thickness of wire for the amount of time you want.

    In Vietnam the Cong would put rubber bands around grenade clips then pull out the pin and drop them into american jeeps gas tanks. The gas would slowly eat away the rubber.


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