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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YobaRoba
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Fri Apr 08, 2005 12:47 pm
This is a copper piston cannon, made from 22mmm and 15mm pipe. it mainly uses solder joints but there are some compression joints that are used to access the insides of the valve.
The barrel is 1.5 meters of 15mm pipe, it has a "barrel extantsion" "for looks". The chamber is 1.5 meters long and made from 22mm pipe. I pump it up to 120-150 psi, with a potato at 150psi it can split 1/4" pine sheet.
According to GGDT with a:
potato at 120psi, it fires at 630fps
lead slug at 12opsi, it fires at 368fps
lead slug calculated max range:1270feet
potato calculated max range:530feet
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Attachments
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![Back0inside0workings.jpg (61.85 KiB) Viewed 2717 times The back of the gun, the 22mm compression joint is for access to the piston and spring](./download/file.php?id=122&t=1&sid=6519d0f85838e6f05ed3e8ebd92f0846)
- The back of the gun, the 22mm compression joint is for access to the piston and spring
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![lead-1-shot.jpg (78.81 KiB) Viewed 2750 times the custom ammo i fire, lead shots, very good projectile](./download/file.php?id=123&t=1&sid=6519d0f85838e6f05ed3e8ebd92f0846)
- the custom ammo i fire, lead shots, very good projectile
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![silencer--1--.jpg (43.07 KiB) Viewed 2748 times the barrel extentsion](./download/file.php?id=124&t=1&sid=6519d0f85838e6f05ed3e8ebd92f0846)
- the barrel extentsion
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![PiStOn--1--.jpg (76.55 KiB) Viewed 2773 times the piston, very simple.](./download/file.php?id=125&t=1&sid=6519d0f85838e6f05ed3e8ebd92f0846)
- the piston, very simple.
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![back--workings.jpg (91.1 KiB) Viewed 2717 times the back of the gun fully put together](./download/file.php?id=126&t=1&sid=6519d0f85838e6f05ed3e8ebd92f0846)
- the back of the gun fully put together
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![finican.jpg (73.5 KiB) Viewed 2736 times the whole gun with muzzlebreak/supressor, red-dot sight, breech loading, ammo box, tripod mont](./download/file.php?id=157&t=1&sid=6519d0f85838e6f05ed3e8ebd92f0846)
- the whole gun with muzzlebreak/supressor, red-dot sight, breech loading, ammo box, tripod mont
Last edited by
YobaRoba on Tue May 10, 2005 8:08 am, edited 4 times in total.
yahhhoooo
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YobaRoba
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Fri Apr 22, 2005 1:27 pm
any chance of this being moved, of do i need a pic of the whole gun, kinda difficult as its 2 m long and my web cam cant even focus on a dime
yahhhoooo
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PCGUY
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Fri Apr 22, 2005 1:29 pm
It will be moved into finished cannons when I move the others.
Yes, I am the guy that owns & operates SpudFiles (along with our extremely helpful moderators).