My Coilgun

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Introduction: 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 Comments

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

    How long is the coil from one end to the other? And what do you use for ammo (how long)?

    the coil is 30mm long and i use 3/4 in steel nails for my ammo...

    Also, what prevents the ammo from sliding right out of the barrel when your pointing down?

    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?

    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.