" Old Shatterhand" 5 shot mag now cycling on vid.

Show us your pneumatic spud gun! Discuss pneumatic (compressed gas) powered potato guns and related accessories. Valve types, actuation, pipe, materials, fittings, compressors, safety, gas choices, and more.
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Brian the brain
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Wed Apr 01, 2009 12:31 pm

Well...here's a proof of concept gun from your friendly forum BTB...

I had to do something to show Psy is not the only Dutchman on top... :D

A QEV gun, 1" reservoir, hammervalve actuated so it's repeating.

http://eurospudguns.forumsdot.com/downl ... .php?id=49

The bolt action is a little different, because it feeds through a T, wich enables me to use a solid bolt, the same diameter as the ammo.
Just one opening to seal...

http://eurospudguns.forumsdot.com/downl ... .php?id=50

A magazine will be fitted later, wich will feed ammo to the bolt.
A hammer will also be fitted, wich wil be cocked by pulling back the bolt.

The bolt is solid as I mentioned, so itenabled me to tap a handle into it, not just for looks, but because this construction is stronger.
An O-rong seals it.

I get 5-6 shots out of the reservoir at 20 bar.
I mean to fill it to 45 though, so a heavy hammer will be needed.

The backpart of the bolt makes it easy to attach a hardwood handcarved stock later...
All of you can use this design, just be sure the bolt , when closed, is strong enough to take the blow.It;s gonna be next to your face.
Attachments
tbolt 003.JPG
Just a pic to get your attention.<br />A lot more pictures can be found further in the thread.
Just a pic to get your attention.
A lot more pictures can be found further in the thread.
Last edited by Brian the brain on Fri Nov 13, 2009 5:46 pm, edited 17 times in total.
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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SEAKING9006
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Wed Apr 01, 2009 12:41 pm

Piccy no worky.
Completed projects:
CA1 SMSS Basic Inline
CA3 PDAB Airburst Cannon

Current Project: Bolt action rifle (25x140mm + 1in shot)
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Carlman
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Wed Apr 01, 2009 12:43 pm

piccy do worky

and nice work BTB!
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Aussie spudders unite!!
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Brian the brain
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Wed Apr 01, 2009 12:44 pm

I am somehow unable to include more than one picture...so I tried to embed it, but that also failed...

strange...
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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psycix
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Wed Apr 01, 2009 1:00 pm

Gahh! Just you wait till I get that BFWB done! :D

Can't wait to put my (currently being shipped) chrony in front of it!

Pics are weird, it seems like they don't want to be embedded. They dont have a .jpg extension.
Till the day I'm dieing, I'll keep them spuddies flying, 'cause I can!

Spudfiles steam group, join!
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Brian the brain
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Wed Apr 01, 2009 1:46 pm

I'm contemplating on changing this into leveraction.

I might do a pump action also.

It's all relatively simple now..
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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JDP12
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Wed Apr 01, 2009 8:40 pm

very nice... I had thought about something similar to this before but was too lazy to build it

question... I'm assuming the barrel goes back into the tee a bit...but how does air get into the barrel if the o-ring seals the bolt and it is solid...

I'm kinda tired now so I'm not really thinking straight... thanks for being patient

EDIT: Does the air flow around the smaller diameter nut on the front of the bolt? I'm assuming thats what it is
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Lentamentalisk
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Wed Apr 01, 2009 8:56 pm

The ammo is loaded from the back, pushed in by the bolt. The bold doesn't go into the barrel, it merely pushes the ammo into the barrel.
Do not look back, and grieve over the past, for it is gone;
Do not be troubled about the future, for it has not yet come;
Live life in the present, and make it so beautiful that it will be worth remembering.
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Brian the brain
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Thu Apr 02, 2009 3:04 pm

The bolt is plugged with a 1/4" plug.

It pushes the marble until it sits on top of the valveport.

The barrel and bolthousing are one piece.
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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ALIHISGREAT
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Thu Apr 02, 2009 3:18 pm

what bore is it? because i would have thought the ammo might slip down toward the valve?

(and have you got a full length pic?)
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Brian the brain
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Thu Apr 02, 2009 3:29 pm

As the ( edit: original) topic title suggests, it's marble caliber, 16mm.

In the original post you'll find 2 links to pictures I can;t seem to embed.

Click 'em.One is a full length picture.

Edit:
Woopsy...No it's not

Here is the link now
http://eurospudguns.forumsdot.com/downl ... .php?id=48
Last edited by Brian the brain on Thu Apr 16, 2009 4:46 pm, edited 1 time in total.
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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ALIHISGREAT
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Thu Apr 02, 2009 3:43 pm

Ahh nice! it just looked a bit out of proportion in the first link.

can't wait to see it finished.
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jackssmirkingrevenge
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Thu Apr 02, 2009 3:45 pm

Looks very promising, looking forward to seeing it complete :)
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Brian the brain
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Thu Apr 02, 2009 3:48 pm

Jack, you were a bit slow to respond this time...

Too busy trying to outdo Psycix huh?

:D

I'll take it slow this time.
My wife complains I spend too much time on the hobby allready, with the business and all.


I also want o outdo all those new stock-rifles
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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jackssmirkingrevenge
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Thu Apr 02, 2009 3:51 pm

Brian the brain wrote:Too busy trying to outdo Psycix huh?
You got me there :roll: :D he's playing with over three times the pressure so I doubt I can outdo him in terms of power, but let's see if I can come up with something that works this time ;)
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