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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jakethebeast
- Corporal 5


- Posts: 945
- Joined: Sat Jul 03, 2010 4:20 pm
- Location: Jakes cave
Fri Jul 23, 2010 6:02 pm
thanx jsr, that was just "freshing memory"
yeh the stock is very nice, but you should put moar pressure to get MOAR POWAHH
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Ragnarok
- Captain

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- Location: The UK
Fri Jul 23, 2010 7:11 pm
spudtyrrant wrote:c11man wrote:ive been to 45, who takes theres to 60?
jeepkahn in the decimator, and maggotman(not the best example lol)
al-xg was one of the first (maybe even the very first) to do so, I believe.
Does that thing kinda look like a big cat to you?
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maverik94
- Corporal

- Posts: 558
- Joined: Wed Jan 21, 2009 4:48 pm
Fri Jul 23, 2010 8:20 pm
It looks pretty nice. The stock looks kinda small, but whatever works for you! I like it!
"You can't be friends with anyone if you aren't friends with yourself."
"I'd rather be hated for who I am, than loved for who I'm not." -André Gide
Give me a lever long enough, and a fulcrum on which to place it and I shall move the world.
–Archimedes
Defeat is always momentary.
–Carl Denham
Current Project: None, I'm in Spudremission.
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zy
- Private

- Posts: 16
- Joined: Fri Jul 23, 2010 9:00 am
Fri Jul 23, 2010 10:23 pm
maverik94 wrote:It looks pretty nice. The stock looks kinda small, but whatever works for you! I like it!
Yeah, the proportions looks a little of, probably because of the total length, it is kind of a long gun. Thx anyway

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POLAND_SPUD
- Captain

- Posts: 5402
- Joined: Sat Oct 13, 2007 4:43 pm
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Sat Jul 24, 2010 2:43 am
jakethebeast wrote:
if i had a barrel sealing piston valve with spring behind the piston, would it be semi-automatic if i pilot it with small qev?
yes
Quote:
if so, do the small qev need to have a spring?
no
Nope that's wrong... if you fill it from the chamebr side then you can achieve semi-automatic fire with a blowgun (or a similar valve)...
Unfortunately, a small QEV won't work becasue the piston acts as a check valve and it will open as soon as pressure is present on the pilot side of the main piston valve.
If you want to fill it from the pilot side then you need a DCV valve (a.k.a. a 3way valve). That's the best way to achieve semi-automatic fire with a QEV
Children are the future
unless we stop them now
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jackssmirkingrevenge
- Five Star General

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Sat Jul 24, 2010 3:38 am
POLAND_SPUD wrote:Unfortunately, a small QEV won't work becasue the piston acts as a check valve and it will open as soon as pressure is present on the pilot side of the main piston valve.
Hadn't Brian succesfully modded a QEV with the simple expedient of a pin-prick equilisation hole?
hectmarr wrote:You have to make many weapons, because this field is long and short life
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POLAND_SPUD
- Captain

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Sat Jul 24, 2010 4:09 am
yeah but a small QEV would need an equalisation hole and a spring too
Children are the future
unless we stop them now
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spudtyrrant
- Corporal


- Posts: 550
- Joined: Fri Jan 02, 2009 6:10 pm
Sat Jul 24, 2010 9:22 am
Ragnarok wrote:spudtyrrant wrote:c11man wrote:ive been to 45, who takes theres to 60?
jeepkahn in the decimator, and maggotman(not the best example lol)
al-xg was one of the first (maybe even the very first) to do so, I believe.
he also
tore the piston lol
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theBOOM
- Specialist 3

- Posts: 374
- Joined: Wed Jun 03, 2009 10:49 pm
- Location: San Antonio, TX
Sat Jul 31, 2010 9:54 am
Is that new stock finished??
Also, what are you using as a chamber??
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zy
- Private

- Posts: 16
- Joined: Fri Jul 23, 2010 9:00 am
Sun Aug 01, 2010 11:48 am
theBOOM wrote:Is that new stock finished??
Also, what are you using as a chamber??
Almost finished. Did this stock in a hurry so the finish is not nearly
as good as the other one. Im painting it now, pics will come soon

.
The chamber is made of 1-1/4" "metal-pipe-fittings" (dont know the correct terms in english

).
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zy
- Private

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Mon Aug 02, 2010 7:51 am
Swosh, the gun is quite powerful

.
Testshot @ 4.5cm (1.77") wood.
Btw, any tip on a good (and maybe cheap?) .50 ammo? Tested .47" wooden balls, but that was a catastrophe... .50" airgun lead
pellets would be nice, but I can only find them in america = too high shipping costs to europa.
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Attachments
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- 4.5cm (1.77") wood
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spudtyrrant
- Corporal


- Posts: 550
- Joined: Fri Jan 02, 2009 6:10 pm
Mon Aug 02, 2010 8:20 am
zy wrote:Swosh, the gun is quite powerful

.
Testshot @ 4.5cm (1.77") wood.
Btw, any tip on a good (and maybe cheap?) .50 ammo? Tested .47" wooden balls, but that was a catastrophe... .50" airgun lead
pellets would be nice, but I can only find them in america = too high shipping costs to europa.
you could always go with
fishing sinkers 