How to Make a COILGUN!

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Introduction: How to Make a COILGUN!

Warning: if you screw up with this you could electricute yourself.

(sorry no plasma)

Step 1: Materials

for this you will need;

capacitor bank ( https://www.instructables.com/id/EV2MC84ZATERXTS1L5/?ALLSTEPS follow steps 1,2 & 3)
transformer thing (you can find them on many circuits )
straw regular or coffee

tools;

scissors
screwdriver
Duct tape

Step 2: The Coil

use the screwdriver to jam the ferrothing out
stick a straw through the new hole
if the straw doesn't fit uncoil the wire and wrap it around the straw

Step 3: Set It Up

use alligator clips to clip the leads from the capacitor bank to the coil ends
put a brad (ferrous) into the straw near the coil
charge the bank (the more capacitors the larger the charge time mine has 7 capacitors and take 5 minutes to charge)
flip the switch and fire

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    252 Comments

    hy plz tell me the rating of capacitor...:)

    Get as many as you can with at least 2000uF. The more the better.

    Finally finished mine! Works really good, but I'm going to add 2 more capacitors to mine for a total of 6 so it shoots faster. I showed my mom and she wasn't happy that I'm making thing that shoot projectiles =/ so I might have it much longer. Anyways nice instuctable rating 5 cause it worked when I made it.

    wait till you guys get married. I'm 42, 19 years of marriage, it only gets worse. At least you guys have your own room and friends who will hide stuff for you.my wife won't let me watch phinies and ferb because she thinks they are a bad influence on me.

    Enjoy your freedom.

    C

    i feel your pain, my mom hates all electronic that i build

    Me 5. What is with moms and high voltage electronics that shoot stuff? :P