Pneumatic maniac

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
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crazyfreak0075
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Barrel: 36" SCH 40 1" pipe
Chamber: 17" SCH 40 2" pipe
Fittings: ALL SCH 40
Valve: un-modded 1" orbit sprinkler (hopeing to mod just got to get off my butt and buy a blow gun
ACTION!!!: Pump - action





Yeah boy. This is my first pneumatic proud of the not to shabby primer job just a couple of places. Built it like 3 days ago. I have a bolt action thats made with a coupling fixer or something i forgot the name of it. Paint's coming, damage pics, and maybe a video.

GGDT said 250 FPS with 187 ft/lbs. with 100g projectile. What ever we'll see what it gets.

Oh yeah as i said im painting it, i still have to buy and install shrader valve (LOL), and im going to mod the sprinkler, maybe and o-ring to make that seal around the action better. So stay tuned.
Attachments
Inside of sliding coupling that is my heart and soul of the pump-action.
Inside of sliding coupling that is my heart and soul of the pump-action.
The main ammo.
The main ammo.
Opened pump action.
Opened pump action.
THE PUMP ACTION!!!!!!!
THE PUMP ACTION!!!!!!!
The valve.
The valve.
The gun.
The gun.
Last edited by crazyfreak0075 on Tue Mar 13, 2007 2:21 pm, edited 2 times in total.
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imablackskater
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nice first gun good job on the bolt action keep it up






... you did a better job priming than i could
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MrCrowley
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Thats actually a really nice clean bolt action there. But where's the bolt? :P


Nice gun anyway
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crazyfreak0075
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Yeah i was talking with my freind and he said its more like a pump than a bolt but what ever ill call it a pump action. I fixed it.
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VH_man
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That IS a sweet cannon. nice breech, i might have to copy you on that..... do they sell fixer couplings for 1/2 CPVC?
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crazyfreak0075
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I dont know about CPVC man, i was actually going to do a 1/2 one because they were .15 cents, but then i saw why they were .15 cents they were yellow and cracked. Ii saw ones from 1/2" up to 2" there for PVC.
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VH_man
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1/2 inch PVC will work i guess...... Swt. im making my friend an airsoft sniper and i dont want him to have to use a ramrod..........
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crazyfreak0075
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Nice be sure to post it too!!!!
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benstern
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Tell us how to make that type of breech.
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crazyfreak0075
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Basically you buy this repair coupling at the store and you'll know what to do when you see it , because it slides and you just cut and opening for your ammo. Mine had two o-rings one on the end of the screw cap, and two on the pison that slides.
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pyromaniac
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before this post i put that breach on a just unscrewed before i shot. I dont understand how you stop the ''pump'' for locking and sealing.

I think ill stick to unscrewing it.
LGM
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Yeah, I think I have one of those couplings in my basement. I want to use one on a crabapple/AA battery gun.
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crazyfreak0075
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Its smooth and nice pumping maybe i can clear things up with a picture.
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untitled23.JPG
untitled23.JPG (12.44 KiB) Viewed 7056 times
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pyromaniac
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How does it lock though? mine doesnt lock it slides every shot. luckly i never sawed it.
Wash Burn
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HAHAHAHAHAHAHHAHAHAH!!!!!!! are you insane??? Does it really shoot batteries? Dude this one is so nice and very clean too!!!!
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