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Deathray Marble Machine Gun

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Have I finally topped the sawed-off

Yes!!!
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well...YES!!
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I don´t like full auto guns that can shoot through guitars
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Total votes : 46
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Unread postAuthor: Brian the brain » Tue Jan 08, 2008 5:26 pm

Too bad ballbearings are so expensive.
Snapvalve it is...
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Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Unread postAuthor: SpudFarm » Tue Jan 08, 2008 5:32 pm

this is ohh you know!! yes you NEED a video with sound! try to shoot a phonebook with it! that will amaze me
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Unread postAuthor: MrCrowley » Tue Jan 08, 2008 6:28 pm

I feel sorry for anyone who attempts to rob your house in the near future :)

Very nice once again, love the snapvalve, what is it with European spudders and high pressure :D

I mean Galfisk, JSR and you would make one helluva team. :P

Great Stuff, got a name for the baby yet?
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Unread postAuthor: Novacastrian » Tue Jan 08, 2008 6:52 pm

MrCrowley wrote:Great Stuff, got a name for the baby yet?


How about the " Hot Damn " A Hot Death rAy MachiNe gun.
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Unread postAuthor: Isomer » Tue Jan 08, 2008 6:53 pm

wow, well done...thats about all i can put into words
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Unread postAuthor: Skywalker » Tue Jan 08, 2008 6:54 pm

I say, could you draw up a quick diagram of the internals of that snap valve? I think that would help JSR, Hotwired, and Rag's work on their auto-piston ideas (we've basically been debating how to make a gun for which a pop-off style valve or some permutation of it is the primary firing valve).

Edit: :oops: yeah, I meant to say, I love that gun! :twisted: Definitely looking forward to seeing you put it through its paces.
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Unread postAuthor: MrCrowley » Tue Jan 08, 2008 6:56 pm

Novacastrian wrote:
MrCrowley wrote:Great Stuff, got a name for the baby yet?


How about the " Hot Damn " A Hot Death rAy MachiNe gun.


I'm literally talking about a baby, he said he had a baby on the way. :P

Congrats btw.
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Unread postAuthor: Novacastrian » Tue Jan 08, 2008 7:06 pm

MrCrowley wrote:
Novacastrian wrote:
MrCrowley wrote:Great Stuff, got a name for the baby yet?


How about the " Hot Damn " A Hot Death rAy MachiNe gun.


I'm literally talking about a baby, he said he had a baby on the way. :P

Congrats btw.


Hahahaha, That would be quite an unusual name for a tot!
"Hey Hot Damn, your mother said get your butt inside" :D

All the best with the new addition Brian.
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Unread postAuthor: MrCrowley » Tue Jan 08, 2008 7:15 pm

Novacastrian wrote:Hahahaha, That would be quite an unusual name for a tot!
"Hey Hot Damn, your mother said get your butt inside" :D


<A HREF="http://www.imdb.com/name/nm0953262/">There have been worse.</a> :roll:
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Unread postAuthor: Hailfire753 » Tue Jan 08, 2008 7:19 pm

Hoooooolllyy Crap. My jaw is still kinda loose! The bolt is ingenious, I WILL steal that for my next gun. The pop off is ingenious, but I don't get how it works! :lol:

I was goint to make a paintball gun very similar to this, and I am not sure what to do for the QEV actuating valve, as it will run off a high flow regulated Co2 bottle. The pilot volume would fill nearly as fast as it would empty, meaning lots of airloss. I slide valve is also not an option because of airloss. Anyone have a good link for an affordable 3-way?
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UPDATED MARCH '08
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Unread postAuthor: POLAND_SPUD » Tue Jan 08, 2008 9:11 pm

lol my daughter is 8 months old so let say I have some experience.... BtB you ain't gonna like the way your life is going to change after that :shock:

again it is a very nice gun... I really like it looks so.... hmmm... modern... post more pics or a video....

could you give the ID of your barrel and tell what is the diameter of marbles you use ? I can't find the size that can fit good in 1/2

BTW I just got my QEV.... it's all shiny and looks so cool.... I am gonna try building my semiauto gun soon :twisted:

Hailfire753 wait first of all what do you mean a slide valve or a sleeve valve ? It think you made a spelling mistake... becasue AFAIK slide valves are use on steam engines so you probably ment a sleeve valve.... right ?
So I am assuming you meant that a sleeve valve is wasting air ? AFAIK the sleeve valve blocks the air input while wenting the other side/pilot valve......
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Unread postAuthor: brogdenlaxmiddie » Tue Jan 08, 2008 9:27 pm

just wanted to say, that your workspace is beastly! ( in a good way)
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Unread postAuthor: Hailfire753 » Tue Jan 08, 2008 11:05 pm

Yeash, sleeve valve. Called it a slide valve because of clide's gun.
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UPDATED MARCH '08
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Unread postAuthor: jackssmirkingrevenge » Wed Jan 09, 2008 12:33 am

Looking good, would love to see a video!

Skywalker wrote:I say, could you draw up a quick diagram of the internals of that snap valve? I think that would help JSR, Hotwired, and Rag's work on their auto-piston ideas (we've basically been debating how to make a gun for which a pop-off style valve or some permutation of it is the primary firing valve).


Ditto - though from the way he described it, it sounds very similar to the designs we've come up with so far.
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Unread postAuthor: Brian the brain » Wed Jan 09, 2008 12:50 am

Similar problem, similar solutions.
Btw, I already have a 5 year old son. Will work on a diagram later..THanks for all the replies!
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Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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