Full Auto Marble Gun

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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mopherman
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Sat Mar 10, 2007 9:53 am

this covers all my fav types of gun, marble mg, qev, and galvanised steel.
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mark.f
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Sat Mar 10, 2007 11:47 am

VH-man, the pin on the valve moves back a little when firing, yes.
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VH_man
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Sat Mar 10, 2007 12:20 pm

do you know exactly how far? sorry im being so specific, i just want this thing im making to work well..........
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Tue May 29, 2007 1:47 pm

I just now ran upon this; I might make make one, and chamber it for 6mm BBs. I will give it a very tiny air chamber, and I already have the QEV. It will look like a submachine gun too. The feeding mech will probably be alot different than yours, utilizing an Airsoft mag from my broken pistol.
Ecclesiastes 1:9 - What has been will be again, what has been done will be done again; there is nothing new under the sun.
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iPaintball
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Tue May 29, 2007 2:07 pm

I know this sounds wierd but the pistol I'm am almost finished with is the exactsame thing you described... I made a paddle interrupter for the fedding mechanism, and I sleeve a 10" airsoft barrel in a 1/4" pipe nipple. The only thing I have yet to get is a pop off valve...
Summer Projects:
CO2 tank hybrid: Gotta fix the meter :(
Cane gun: Needs a pilot/fill setup
1.5" piston valve gun: Almost done
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Tue May 29, 2007 3:37 pm

Nice, I can't wait to see how it turns out.
Ecclesiastes 1:9 - What has been will be again, what has been done will be done again; there is nothing new under the sun.
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VH_man
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Tue May 29, 2007 7:03 pm

make it into some sort of support weapon, and it will be basically a SAW for a 1/4 of the price and twice thbe effectiveness.........
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simo
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Sun Jun 03, 2007 12:11 am

heaps nice gun i wanna make one like that how much psi do you pump it to and what can the dammage to at 200 PSI, how far can the ammo go if i shot it at 200PSI
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mark.f
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Sun Jun 03, 2007 7:37 am

Well...

This gun can't go to 200 PSI, because there's a 90 PSI pop-off valve on it. :wink: Not only that, but I reconfigured it. The reconfigured gun would shoot well over 100 yards at 100 PSI.
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VH_man
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Sun Jun 03, 2007 9:06 am

you should get a 300 PSI pop-valve, pressure rated parts, and hook it up to an un-regulated CO2 canister. THAT would be powerful. most likely the most powerful gun on this site.......... :shock:
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Wed Oct 10, 2007 6:49 am

hmm i cant see your picture lol thats really anoying. Could someone link me to a site that explains what a co2 thingy is and what it adds tot hese guns. You have a very ncie gun from what i can hear lol il try the computers at the local library hopefully ill see then.
Cheers Nato
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Brian the brain
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Wed Oct 10, 2007 2:59 pm

This project begs to be revived as a golfball cannon....
Or 1"marbles like I used for the sawed-off..
Still, I can't get QEV's in holland.
I have however found 15 bar safetyvalves.
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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Wed Oct 10, 2007 3:34 pm

They do have QEVs in Holland. Fastenal sells QEVs and they are really cheap. They do shipments to your house and in-store pickups depending on how close you are. Heres the link to a 3/4" QEV http://www.fastenal.com/web/products/de ... ku=0443031 They have other QEVs listed under "Exhaust Valves". Go to the "Locations" button at the top of the page to find which of the two stores in Holland you want to buy from. Not to mention their QEVs are dirt cheap.
Ecclesiastes 1:9 - What has been will be again, what has been done will be done again; there is nothing new under the sun.
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trae08
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Wed Oct 10, 2007 3:52 pm

pimpmann22 wrote:Noice! [Got a lot of questions]


Also gonna need to find a lower pressure activating popoff because all of the ones ive seen locally activate at higher pressures of 125PSI.
on the popoff i have which looks just like the one hes using.. i can unscrew the top and it will raise or lower the pressure at which it pops off.
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Wed Oct 10, 2007 5:37 pm

could anyone link me with a site that sells. Q.E.V.S in Australia?
Cheers
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