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Expedient Firearms - Zippo Gun
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  GunMaking

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Posted: May 19 2011 at 2:27pm | IP Logged Quote GunMaking

I got a hold of the Sardaukar Gun Plans and attempted the Zippo build



And I was pretty successful:




Alas, it didn't work at all, the space for a spring is very small and the design even calls for you putting springs inside springs. If anyone of you can give me an idea for a very strong, explosive spring I might be able to make it work.

On youtube there is a guy which seems to have made it work:

http://www.youtube.com/watch?v=ROft_zgQTQk







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  weaponeer

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Posted: May 27 2011 at 1:11pm | IP Logged Quote weaponeer

looking forward to seeing more on this
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  GunMaking

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Posted: May 30 2011 at 6:46am | IP Logged Quote GunMaking

Here are the blueprints for the Zippo "Zapper" Gun together with some other Expedient designs that might be of interest.

Bolt gun, Zippo gun, Pen gun and Cane gun.


Sardaukar_Gun_Plans.pdf

Enjoy!

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  landdesigner

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Posted: August 24 2011 at 5:43pm | IP Logged Quote landdesigner

You mentioned springs inside of springs, this is not so difficult, obviously the small scale is prohibitive, but a similar concept is brought up in many pen gun designs.  Small boxes of odd sized springs are available from most large hardware stores.  I imagine two of these boxes would provide you with enough springs to experiment and find a proper fit. 
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  fundamentalist

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Posted: September 10 2011 at 3:24pm | IP Logged Quote fundamentalist

I vaguely remember my dad telling me about how they made Zips into single shot pocket weapons in the 50's. Stretching the brain cells here, but I think he said it was .22 LR. They'd fill the cavity of the lighter with lead, and have a snap spring on the back to fire it. 
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  Cody805

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Posted: October 29 2015 at 9:18pm | IP Logged Quote Cody805

This is very cool has anyone completed a working prototype? If so I have a few questions!
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  spiff2022

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Posted: June 08 2016 at 4:59pm | IP Logged Quote spiff2022

i know im bringing up a dead thread, but im trying to build this as well. i made it in 3d and it looks like the sear dimensions are wrong or i read them wrong. anybody else interested in this? ill post pictures if anybody replies
$5 tax stamp when you build it right?
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  yaybacon

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Posted: June 09 2016 at 6:33am | IP Logged Quote yaybacon

  No one mentioned it in this thread, but if you put springs inside of springs. one has to be the reverse clockwise direction of the other, so they don't try to merge~ also post pictures when you start and I've found head spacing 22lr's is less critical to saftey, as it is to requiring more force to ignite, because it has to also shift the entire mass of the bullet back into the chamber if it slides outwards by 0.001"+
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  backbencher

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Posted: June 09 2016 at 10:18am | IP Logged Quote backbencher

$5 tax stamp to buy one from an SOT as an AOW. $200 for you to Form 1 an AOW.
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  yaybacon

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Posted: June 09 2016 at 4:36pm | IP Logged Quote yaybacon

  Am I correct in understanding that if it looks like a gun, then it is a gun and not an AOW?  So just give it a little removable pistol grip and a barrel extension and you are good?
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  backbencher

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Posted: June 09 2016 at 5:07pm | IP Logged Quote backbencher

If it looks like a gun when it's ready to fire, then it's not an AOW, IIUC.
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  spiff2022

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Posted: June 09 2016 at 10:09pm | IP Logged Quote spiff2022

yaybacon wrote:
  No one mentioned it in this thread, but if you put springs inside of springs. one has to be the reverse clockwise direction of the other, so they don't try to merge~ also post pictures when you start and I've found head spacing 22lr's is less critical to saftey, as it is to requiring more force to ignite, because it has to also shift the entire mass of the bullet back into the chamber if it slides outwards by 0.001"+

good advice. so since hammer spring power is so marginal i need tight tolerance where i cut out my rim spacing.
it may be a bit before i can start machining anything, plus i dont want to actually cut any metal and run afoul of the atf until i have a tax stamp. but i did draw it in 3d and hopefully will print off a proof of concept model on a 3d printer within the next week or two. took a screenshot but the forum is giving me errors trying to upload it.
i think im reading the dimensions for the sear wrong, its sticking way out the side at the bottom when it is engaged with the hammer, any thoughts?


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  spiff2022

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Posted: June 09 2016 at 10:11pm | IP Logged Quote spiff2022

backbencher wrote:
$5 tax stamp to buy one from an SOT as an AOW. $200 for you to Form 1 an AOW.

do i need a chief leo signature?

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  yaybacon

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Posted: June 10 2016 at 7:07am | IP Logged Quote yaybacon

  Just trace this into your 3d-model maybe the pin location is off, or you are drawing the sear in backwards.

http://download.cnet.com/Ghost-It/3000-2072_4-10077652.html

GunMaking wrote:
I got a hold of the Sardaukar Gun Plans and attempted the Zippo build



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  backbencher

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Posted: June 10 2016 at 10:48pm | IP Logged Quote backbencher

spiff2022 wrote:

backbencher wrote:
$5 tax stamp to buy one from an SOT as an AOW. $200 for you to Form 1 an AOW.


do i need a chief leo signature?


Not after 13 July. Thanks Obama.   
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  spiff2022

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Posted: June 11 2016 at 1:10am | IP Logged Quote spiff2022

yaybacon wrote:
  Just trace this into your 3d-model maybe the pin location is off, or you are drawing the sear in backwards.

http://download.cnet.com/Ghost-It/3000-2072_4-10077652.html

GunMaking wrote:
I got a hold of the Sardaukar Gun Plans and attempted the Zippo build




im working off the same plans as you, my sear is fat in the wrong places. im pretty sure i just misread the blueprint. ill have to put some more thought into it. anyway im posting a link to the photo, hope it works right


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  spiff2022

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Posted: June 11 2016 at 1:11am | IP Logged Quote spiff2022

backbencher wrote:
spiff2022 wrote:

backbencher wrote:
$5 tax stamp to buy one from an SOT as an AOW. $200 for you to Form 1 an AOW.


do i need a chief leo signature?


Not after 13 July. Thanks Obama.   

why what happens then?

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  backbencher

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Posted: June 12 2016 at 1:24pm | IP Logged Quote backbencher

41f comes into effect, and the CLEO signature goes away.
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  spiff2022

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Posted: June 13 2016 at 6:00pm | IP Logged Quote spiff2022

backbencher wrote:
41f comes into effect, and the CLEO signature goes away.

So he messed up and did something right?
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  Paraquat

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Posted: June 14 2016 at 8:06am | IP Logged Quote Paraquat

Purely accidental, I can assure you.

I've seen the sketch but now that I see the model I wonder if the slot on the left for the sear also acts a guide rail for the hammer?
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