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Marble rifle

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Marble rifle

Unread postAuthor: super spuder » 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
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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 :lol:
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Last edited by super spuder on Sun Apr 29, 2007 9:24 am, edited 4 times in total.
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Unread postAuthor: COD_FILLETS » 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.
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Unread postAuthor: skinner » 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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Unread postAuthor: Redcoat » 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.
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Poo.
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Unread postAuthor: XxtriviumxX » 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 :D

oh now i see what its for der :D
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Unread postAuthor: mega_swordman » 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)
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Unread postAuthor: spudthug » Sun Apr 29, 2007 7:53 am

ehh..its alright..im thinking u wasted a gun stock on that ball valve...they suck
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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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Unread postAuthor: mark.f » 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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Unread postAuthor: Velocity » 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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Unread postAuthor: super spuder » 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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Unread postAuthor: super spuder » 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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Unread postAuthor: rad14701 » 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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Unread postAuthor: SleekZ » 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!
:wink:
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Unread postAuthor: Specialist » 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! :D
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Unread postAuthor: super spuder » 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
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