Spadulux

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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-X3-
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Joined: Fri Aug 01, 2008 4:28 pm

Wed Apr 04, 2012 6:08 pm

Hi all,
I'm proud to show you le last air rifle I've created (2 years ago at least, I'm a bit lazy since returning to studies)

Air supply is in semi-auto mode but I have to feed ammos by hand in the breech (10mm ball bearing are commonly used)

Fire extinguisher pressurized to 20 bars (300psi) , pressure regulator to adjust the power of shooting, 1/2" QEV and because I'm french the trigger is a hose trigger as usual here !
Typically, I shot at 6 bars, and even with this low pressure, ball bearings go through metal sheet of approx. 1mm, plus 15mm of agglomerated wood...
I can also shoot some 14mm ball bearings which have some massive impact on th target but not so much penetration.
Third choice ammo is obviously a nail taped whith paper (homemade dart)
With specific concrete nails, you got a reusable dart with impressive penetration power !

I can trigger about 8 times before the pressure drops below 6 bars.
I use my fridge compressor to pressurize the tank.


[youtube][/youtube]
[youtube][/youtube]
[youtube][/youtube]

Album here :
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The whole thing
Last edited by -X3- on Fri Feb 13, 2015 1:24 pm, edited 2 times in total.
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frappu
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Joined: Fri Jan 21, 2011 7:11 am

Thu Apr 05, 2012 4:34 am

Hey X3,good job and nice rifle!What kind of adapter have you used for the fire extinguisher?Because i have the same tank but it isn't a standard bsp thread and won't fit with common adapters.
For your cannon,the only suggestion is to reduce pilot volume that seems to be too big.

;)

Sorry for any language mistakes ;)
Last edited by frappu on Thu Apr 05, 2012 4:58 am, edited 1 time in total.
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-X3-
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Thu Apr 05, 2012 4:54 am

Hi, spadulux is the name of the rifle... Lol
The pilot volume could be reduced but for ergonomical reasons and good flow it is difficult.
The thread of extinguisher is not standard but very close to 3/4" so I screwed it with epoxy glue.
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bravootome
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Wed Oct 16, 2013 11:57 am

-X3- wrote:Hi all,
I'm proud to show you le last air rifle I've created (2 years ago at least, I'm a bit lazy since returning to studies)

Air supply is in semi-auto mode but I have to feed ammos by hand in the breech (10mm ball bearing are commonly used)

Fire extinguisher pressurized to 20 bars (300psi) , pressure regulator to adjust the power of shooting, 1/2" QEV and because I'm french the trigger is a hose trigger as usual here !
Typically, I shot at 6 bars, and even with this low pressure, ball bearings go through metal sheet of approx. 1mm, plus 15mm of agglomerated wood...
I can also shoot some 14mm ball bearings which have some massive impact on th target but not so much penetration.
Third choice ammo is obviously a nail taped whith paper (homemade dart)
With specific concrete nails, you got a reusable dart with impressive penetration power !

I can trigger about 8 times before the pressure drops below 6 bars.
I use my fridge compressor to pressurize the tank.
if you would of make your own qev your gun would be much pretty and easy to cosmetize


[youtube][/youtube]
[youtube][/youtube]
[youtube][/youtube]

Album here :
Last edited by jrrdw on Fri Oct 18, 2013 6:12 am, edited 1 time in total.
Reason: Fixed videos.
come undone
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