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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super spuder
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Sat Apr 28, 2007 11:12 pm
this is my marble rifle. it is getting painted soon. i will have details tomorrow. too tired right now. it is made from a 22 gun stock

sorry if it is ugly, but this is more or less my spare parts cannon. the chamber it a piece of pipe that use to be a role bare on a tractor, with two circles welded on the end, it has a 3/4 inch ball valve, yes i know it is slow opening but one again, spare parts cannon, i might put a better valve on it in the future. the barrel it 3/4 inch water pipe that came from our well that we fixed a couple years ago, it is 3 1/2 feet long, and the loading system it suppose to make it semi auto, but i have not got that to work yet, the first picture is a marble shot at about 50 psi at a kitty litter box

Last edited by
super spuder on Sun Apr 29, 2007 9:24 am, edited 4 times in total.
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COD_FILLETS
- Specialist

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Sat Apr 28, 2007 11:41 pm
The gun looks good itself, but maybe the barrel looks like it's sticking a little too far from the end of the gun (in my opinion - purely aesthetics).
Also, it looks like you're using a ball valve to fire the gun (just making sure). From what I've read, ball valves seem to be slow to open.
"If at first you don't succeed... So much for skydiving." - Henry Youngman
"Better to keep your mouth shut and appear stupid than to open it and remove all doubt." - Mark Twain
"I'll Procrastinate Later" - COD_FILLETS
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skinner
- Private 4

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Sun Apr 29, 2007 3:16 am
A little messy at the moment, but your going to paint it, so thats all good.
Does it have a rifled barrel?
If not, then its not a rifle, so please dont call it that, its a smoothbore cannon.
Good work.
--Skiner
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Redcoat
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Sun Apr 29, 2007 3:30 am
i dont like theidea of the chamber being right there in your face but its still good.As ong as it performs well look isn't the main thing.
Edit- if you had the valve handle and the mag facing sideways it would be cool.
Poo.
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XxtriviumxX
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Sun Apr 29, 2007 3:58 am
nice gun, it could be a bit cleaner, once you paint it will look much better, kinda looks like my gun in a way, same basic idea to. whats that thing sticking out in front of the ballvalve ment to do.....or was it just a part of the fitting that just happened to be there. again good job
oh now i see what its for der

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mega_swordman
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Sun Apr 29, 2007 4:38 am
Pretty...messy. But still good. It will look a lot better after a paint job. Also, I would try to secure it with something other than zipties. I think it would look a lot better with some hose clamps (the metal things)
"Never tell people how to do things. Tell them what to do and they will surprise you with their ingenuity." George S. Patton
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spudthug
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Sun Apr 29, 2007 7:53 am
ehh..its alright..im thinking u wasted a gun stock on that ball valve...they suck
4" piston valved cannon-half done..( i spilt my cement...)
Hybrid- 75% done. need to build propane holder and drill/tap sparkplug hole..
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mark.f
- Sergeant Major 4


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Sun Apr 29, 2007 8:24 am
Jeebus, not one compliment... quit fretting. The barrels plenty long to help make up for some of the slowness of the ball valve a little.
What is the chamber made up of?
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Velocity
- Sergeant

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Sun Apr 29, 2007 9:02 am
skinner wrote:
Does it have a rifled barrel?
If not, then its not a rifle, so please dont call it that, its a smoothbore cannon.
Argh come on, we have had this discussion before, and it really doesn't matter... it looks like a rifle, so super spudder can call it a rifle.
Nice gun... a paintjob would help to clean it up a bit. You might also want to consider going for a sprinkler valve with a blowgun trigger to make the gun easier to aim, easier to fire, and have better performance.
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super spuder
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Sun Apr 29, 2007 9:12 am
skinner wrote:
Does it have a rifled barrel?
If not, then its not a rifle, so please dont call it that, its a smoothbore cannon.
Good work.
--Skiner
it does not have a rifled barrel on it, i called it a rifle because it is built around a 22 "rifle"
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super spuder
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Sun Apr 29, 2007 9:27 am
spudthug wrote:ehh..its alright..im thinking u wasted a gun stock on that ball valve...they suck
i know they suck, but i can take it out and put in a QEV latter if i want
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rad14701
- Private 4

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Sun Apr 29, 2007 9:36 am
Sometimes it's more about the fun of building and playing than it is about looks and ultimate performance... Nice gun... Reminds me of my youth when I would build any of a number of motorized contraptions over the course of a weekend or two... I'd build like crazy until they'd go fast but would never finish them by making them look pretty or have brakes...
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SleekZ
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Sun Apr 29, 2007 10:04 am
Hey Spuder, I reckon you did alright if you made it out of spare parts; gee I'd be pretty happy if I could get something together, just out of stuff I've got lying around! hey, at least it works, that's the main thing!

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Specialist
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Sun Apr 29, 2007 10:08 am
not bad. and the saying goes form follows function. and it looks great i really like the carved rifle stock. good job!

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super spuder
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Sun Apr 29, 2007 10:11 am
yea, about the rifle stock. i feel kinda bad, cause i took apart antique 22 to get the stock, but the gun did not work anyways