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my first air cannon (revised with pictures)

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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my first air cannon (revised with pictures)

Unread postAuthor: csgunner » Wed May 07, 2008 5:17 pm

This is my first air cannon, it is very simple, with just a ball valve and is filled by a tire pump. It take about 60 psi and is quite powerful. I put an AA battery about an inch into a tree stump.
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xvcxcxcxc.JPG
Hole in a tree stump from about 10 yards away. Made by AA battery.
xvcxcxcxc.JPG (11.68 KiB) Viewed 1097 times
dfdfdgf.JPG
I later took "stock" off and put on a shorter, thinwall pvc barrel for marbles
dfdfdgf.JPG (25.65 KiB) Viewed 1092 times
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Unread postAuthor: n-strike » Wed May 07, 2008 10:58 pm

Nice job! Specs?
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Unread postAuthor: bigbob12345 » Wed May 07, 2008 11:08 pm

Looks good for a first
But I would also like some specs and if possible a couple close up pics so i can see if you used DWV or not.
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Unread postAuthor: starman » Wed May 07, 2008 11:56 pm

bigbob12345 wrote:Looks good for a first
But I would also like some specs and if possible a couple close up pics so i can see if you used DWV or not.


Yes close ups please... :lol: at BB....
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Unread postAuthor: csgunner » Thu May 08, 2008 6:31 am

No DWV except for endcaps.
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Unread postAuthor: M.J.P. » Thu May 08, 2008 6:59 am

hmmm probably should get pressure rated endcaps especially if your going to take it over 60 psi
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Unread postAuthor: csgunner » Thu May 08, 2008 4:43 pm

If I make another,better gun with sprinkler valve wiil use pressure rated fittings.
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Unread postAuthor: magnum9987 » Thu May 08, 2008 5:03 pm

What velocity do you think you can achieve?
And, it is unwise shooting batteries around. They do break and leak hazardous acid into the environment. You should build a sabot and fire airsoft or something out of it.
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Unread postAuthor: drex » Thu May 08, 2008 5:43 pm

magnum9987 wrote:What velocity do you think you can achieve?
And, it is unwise shooting batteries around. They do break and leak hazardous acid into the environment. You should build a sabot and fire airsoft or something out of it.

i dont think a little MnO2 is going to do any thing to the environment :roll: its just going to end up in a land fill any ways.

btw nice gun :wink:
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Unread postAuthor: csgunner » Thu May 08, 2008 9:00 pm

Yea, about the batteries, i started using marbles because they're cheaper, easier to get, and fly straighter.

Specs:
I havent't measured exactley, so the lenghts might be a little off

Air Chamber- 11/2 in. PVC (about 4 feet long)
Barrel- 1/2 in. PVC (about 4 feet long)
Ball Valve- 1/2 in PVC
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Unread postAuthor: STHORNE » Thu May 08, 2008 9:04 pm

what was the total cost of the cannon? (not including ammunition :wink: )

EDIT: 800th post! :D This calls for some random smilies:

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lol
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Unread postAuthor: daxspudder » Thu May 08, 2008 9:39 pm

Yea, about the batteries, i started using marbles because they're cheaper, easier to get, and fly straighter.


cheaper yes, but i cant find marbles at ever store in the country, of course i hope you only shoot spent batteries, firing new ones would certainly be a waste. nice job. oh fyi BB is the unofficial dwv police, but he has a point. its definitely a good/safe idea to use all pressure rated materials.
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Unread postAuthor: csgunner » Fri May 09, 2008 8:54 am

Go to Dollar General for marbles-they have a bag of 200 for a dollar.

The cost of the gun was about 15$, but I already had the 1 1/2in pipe
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Unread postAuthor: bigbob12345 » Fri May 09, 2008 9:23 am

Because you didnt give me close ups I had to take the one pic and zoom it like nuts and I have determined that yes you do have a DWV endcap but it looks like a you have a bell reducer too, its hard to tell because of the fuzzynes when its zoomed so i may be wrong.
But even if I am wrong YOU HAVE DWV :shock: :shock: :cussing: :protest: :protest: :violent1: :tongue2:
DWV IS A LIKE A TIME BOMB THAT YOU DONT KNOW WHEN IS GOING TO EXPLODE :bom:
Please dont get pissed at me for using all caps, or the overuse of smilies
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Unread postAuthor: csgunner » Fri May 09, 2008 11:23 am

I looked and the encap is DWV but the reducing is pressure rated-that and its about an inch thick righte there.

Next time will include closeups.
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