My Coilgun

!>I WILL SOON BE UPDATING THIS COILGUN TO A THREE STAGE, 36 CAPACITOR WEAPON
i created this coilgun from rwilsford07's ible. i loved his ible because of all of the info that was presented. this gun includes a 12-layer 22-gauge coil and 18, 330v 120 uf caps. laser sight and a scope it has a range of about 47 meters.

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    33 Discussions

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    BrendenK2

    2 years ago

    how sturdy is your design? the barrel seems to sag a little. that decreases range and accuracy.

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    im busy trying to create something to do that for me, so for now i put a piece of tape in the back of the straw.

    sorry for wasting your time with a possibly noob question, but why do you need such high voltage ratings on the caps when the power source is only 9v?

    2 replies

    think of a capacitor like a bucket and the battery like a hose. The battery fills up the capacitor until it's full. Using a switch you can allow it to fill up completely and once it's full you flip the switch and out comes a higher voltage. One of the best uses for this is in a 555 timer circut, the amount of time it takes to fill a capacitor is the same as the time vatiations

    because the camera circuit will use a transformer to step up the voltage to around 450 volts, and that is using a 1.5 volt battery. using a 9.6 volt would give a voltage of 2880 volts, this is how a camera flash and coil gun work. first charge a high voltage capacitor using a step up transformer and a low voltage power source, then discharge the capacitor quickly and use the masive current for something.

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    Arbitror

    9 years ago on Introduction

    Awesome job. The only thing different that I'd do though, is put all the components into a plastic toy gun. Rated 5 Stars! *****

    7 replies
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    history323Arbitror

    Reply 9 years ago on Introduction

    To me there are 2 cool looks= the smooth toy gun all contained look
    and the hanging out look
     I think the exposed look is just a little bit better to me
    Great job though!!!!!

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    Arbitrorhistory323

    Reply 9 years ago on Introduction

    There is still that much more of the chance of you getting shocked, though. Trust me, I have been zapped by one fully charged Kodak capacitor, and it felt like you were getting kicked by a horse. I don't want to even try getting shocked by 8 or 18 capacitors in series!

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    mr.break_itArbitror

    Reply 8 years ago on Introduction

    Yea, I got a jolt from a disposable camera, too.  it made me yell and scared the sh!t outta me. It didn't really hurt, just made my muscles tense up.

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    history323Arbitror

    Reply 9 years ago on Introduction

    I got shocked a while ago too. It dosnt feel like you are getting kicked by a horse, I just lost control of my muscles for a moment it was not that painful really. But true 8 or 18 would hurt like heck!

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    eneergcamArbitror

    Reply 9 years ago on Introduction

    I made a coilgun similar to this and will post it later, my other one is in a toy gun, you should check it out!

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    max0506

    9 years ago on Introduction

    Hello guys
    I am making a coilgun made of a disposable camera and some capacitors.
    I have made a drawing with google sketch-up. Could you please check if I have made all the connections right? ( I am not an expert ……… yet)

    www.elektronica_stuff.webklik.nl/page/voorpagina
    please reply!

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    calemus

    9 years ago on Introduction

    ok, so after looking at a few of these i am asuming that, A) the barel is not applying thrust, or momentum to the projectile, and B) the coil positioned on the outside of the barel is making 1 single pulse of electro magnetic fource applied to the projectile, , and once the projectile is clear of the coil area it is inertia, friction, and gravity that determine the trajectory.

    Is that correct????