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First Pneumatic

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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First Pneumatic

Unread postAuthor: SpoonZ » Tue May 29, 2007 6:51 am

This is my first Pneumatic, only ever had experience with Combustions. And I have to say. Pneumatics. By far. I was overwhelmed by the power of these things.

All the white PVC is 32mm Pn12 Pressure PVC rated at 175PSI. 470mm Chambers and a 600mm Barrel, Irrigation piping. The black reducer and pipe looking things are threaded irrigation connectors/adapters. Not sure but they might be ABS, but there are 3 of them all doubled over each other. So a chance of a crack etc it will be the chamber. 15mm Brass ball valve and filling is a bike valve/schrader valve.

Currently had it to 85PSI not a leak in it, AA batteries fit perfectly down the barrel and at 85PSI will fly maybe 200M or more, not sure. Sorry about the green mess. I didnt want the pressure PVC cement to allow any leaks.

Anyway, seeing as its my first. You think its safe to take it up past 100 PSI? Maybe to like 120?

Cannon
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Damage shot: Small rock at 45 PSI 15 Feet away. In this side.
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Damage shot: Out the other side.
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Battery at 50PSI into bricks.
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Unread postAuthor: jrrdw » Tue May 29, 2007 6:57 am

You will never know untill you do it. Thats like asking if sex feels good, you never know untill you do it. Just wear protection when you test the limits, during both of above mentioned!
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Re: First Pneumatic

Unread postAuthor: jackssmirkingrevenge » Tue May 29, 2007 7:06 am

SpoonZ wrote: By far. I was overwhelmed by the power of these things.


buy a sprinkler valve and mod it, you'll be even more amazed at the increased power and accuracy :)

Still, very nice for a first effort.
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Re: First Pneumatic

Unread postAuthor: SpoonZ » Tue May 29, 2007 7:10 am

jackssmirkingrevenge wrote:
SpoonZ wrote: By far. I was overwhelmed by the power of these things.


buy a sprinkler valve and mod it, you'll be even more amazed at the increased power and accuracy :)

Still, very nice for a first effort.


Yeah haha, thats what I was going to do this weekend.
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Unread postAuthor: experament-u2 » Tue May 29, 2007 9:29 am

welcome to files spoonZ and a sprinkler valves will do ur gun wonders
good job
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Unread postAuthor: Pyro Ninja » Wed May 30, 2007 1:17 am

pretty good first......good job :)
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Unread postAuthor: iknowmy3tables » Wed May 30, 2007 7:16 am

irigation stuff should be fine I think but that barrel sounds like it might bend
nice gun well done and that priming job is great compared to most guns
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Unread postAuthor: chaos » Wed May 30, 2007 7:37 am

iknowmy3tables wrote:irigation stuff should be fine I think but that barrel sounds like it might bend
nice gun well done and that priming job is great compared to most guns


no way, it might flex a lil bit, but thats premium aussie poly pipe
(i think,unless u not in Australia)

its great stuff for barrels.
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Unread postAuthor: SpoonZ » Wed May 30, 2007 7:51 am

Will flex a bit like Chaos said. but not too much. 102PSI with the smallest leak. Just have to replace the 2 black reducers. I did them to tight and have just about threaded them selves. So thats why i think its leaking.

Anyone know where to buy sprinkler valves?
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