How to Make a COILGUN!




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 ( follow steps 1,2 & 3)
transformer thing (you can find them on many circuits )
straw regular or coffee


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 Discussions

    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.

    17 replies

    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 wife won't let me watch phinies and ferb because she thinks they are a bad influence on me.

    Enjoy your freedom.


    I dunno. My mom found some schematics to the "worlds smallest shocker" that Plasmana made and asked me what it was. I just told her it was for part of the coil gun cuz she would get SO mad if she found out I made that..

    I took apart her car and built a tank. She laughed for 2 hours straight. i still have it. it shoots 2 fet in diameter sharpened iron blocks about 150 feet, using a coil gun and 20 car batteries. She buys me the iron.