electromagnetic coil gun

coil gun
remember greg the high voltage hacker that brought us the homemade night vision scope?  one reader commented:

Greg is a great guy with a ton of ingenuity. He is an inspiration for all high-voltage enthusiasts, and is the only person i know to have constructed a working Tesla coil out of nothing but junk. He is a Class-A hacker!

with a comment like that, and a few other tips i’ve recieved, i figured i should take a closer look at the other articles on his site.  his electromagnetic coil gun howtos are of particular interest.  on his site, they come in two sizes, small and large.

The total peak energy storage for this system is 1874 Joules, the same amount of caloric (not mass) energy found in 4.7 tablespoons of SKIPPY peanut butter. For reference, my other coil gun’s peak energy was 55 Joules or 0.14 tablespoons of peanut butter

Comments

  1. Kevin says:

    When i first came across Greg’s page about 3 years ago i became interested in coiling. Want an easy proof of concept? I built a small 1-stage coilgun using a disposable flash camera and photoflash caps scavenged from other cameras. It would actually launch a small nail about 100 feet using a bank of about 10 caps.

  2. CDE says:

    Kevin=All talk

    Show us the proof (a.k.a. give us a tutorial)

  3. Telef2k says:

    no proof necessary for that claim
    google “camera flash coilgun” very simple and tutorials everywhere

    Its a fun hobby, check out http://www.4hv.org if youre interested in it

  4. the_noid says:

    tried making one of these…learned a lot, dont use dielectirc fluid caps, dont use bbs as ammo, and dont use 1/4W resistors bc they get very hot

  5. ryan says:

    hackaday needs more hacks that can put an eye out from other counties. period.

  6. patrick says:

    I’m trying to get into high voltage. I live in providence in the summer, so I’m going to take his advice and go dumpster diving

  7. PyRoskater says:

    greg’s site is anawesome one. thanx 2 his explanations, i now understand how to make one of those coil guns. i think they’re awesome, considering there is no moving parts, and that there are no hard aspects of building one(if ur an experienced hacker) $k@t3 4 l!f3

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