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300+ psi Whammy gun.

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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Unread postAuthor: Mitchza89 » Thu Mar 06, 2008 7:14 pm

:shock: very well done on that gun. that looks unreal. whats the power like??
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Unread postAuthor: elitesniper » Thu Mar 06, 2008 7:15 pm

Now with the insane airplane fan inside its shoot insane, almost 550 fps beacuse of that :lol:
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Unread postAuthor: Mitchza89 » Thu Mar 06, 2008 7:18 pm

Jesus..... The fan really makes that much of a difference aye?
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Unread postAuthor: elitesniper » Thu Mar 06, 2008 7:19 pm

yes fan make an insane difference, ive tried to fire then gun with out the fan on but its takes about 5 or six clicks to make it fire, but when the fan is on its fired on the first click no matter what.
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Unread postAuthor: Mitchza89 » Thu Mar 06, 2008 7:26 pm

That's awesome man. Really well done.
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Unread postAuthor: elitesniper » Thu Mar 06, 2008 7:27 pm

haha but tis is your thread so, very well done to your cannon too :)
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Unread postAuthor: Mitchza89 » Thu Mar 06, 2008 7:47 pm

Well I just shot a milo can. It pissed through both sides.......and through the backboard with a small rock at 3m....Definately happy :D
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Unread postAuthor: pizlo » Thu Mar 06, 2008 9:31 pm

Damn, so clean... Damage pics PLOX
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Unread postAuthor: Mitchza89 » Thu Mar 06, 2008 9:35 pm

I just did the coin test at 250psi. I shot a nail through a 10c piece and an inch into the back board. I shot a 20c piece soon after but I made the tip too sharp and so it had no strength. It got close to going through the coin but the nail tip just collapsed and moulded into the coin. I can't get it out....

If I had some high speed steel nails, I reckon I'd have a bit more luck.

Cheers for the comment Pizlo :D
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Unread postAuthor: bigbob12345 » Thu Mar 06, 2008 9:42 pm

Wow very nice.
I would really like to see some pics of this awsome damage you speak of or even a vid.
Id bet its loud because I just finished my mini coax(1/2 the size of this) and it makes a surprising crack when it is fired at 200psi and will soon get up to 500psi.
what pressure have you taken it up to?sorry if that has already been mentioned
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Unread postAuthor: pizlo » Thu Mar 06, 2008 9:48 pm

Mitchza89 wrote:Cheers for the comment Pizlo :D


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cheers to you erm.. mate! for making a kick ass gun, I've always liked metal stuff that sorta seems real, thats what I was aiming for with my mini, you should see it on sunday, If the piston making goes well tomorrow.
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Unread postAuthor: Mitchza89 » Thu Mar 06, 2008 10:22 pm

Mmmmm I could go for a cold one about now. It's friday, 1:30pm and I'm still sobar...what the?!?! :D

What's the spec's on this mini your making?

Bigbob, I usually fire this thing at 250psi but have taken it up to 300+ on a few occassions.

500psi?! damn....how and the hell are ya gonna achieve that? helium? co2?
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Unread postAuthor: jackssmirkingrevenge » Thu Mar 06, 2008 11:07 pm

elitesniper wrote:she's not as strong as I expected :cry:


toldyouso

*cough*shockpump*splutter*

It pissed through both sides...


Was that a typo or are you just being Australian? :D

If I had some high speed steel nails, I reckon I'd have a bit more luck.


Nature always choses the path of least resistance, if your projectile is harder than your target then it's easier to penetrate. I use masonry nails, the ones that tend to snap rather than bend if you hit them sideways.
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Unread postAuthor: elitesniper » Thu Mar 06, 2008 11:10 pm

yes master jsr i should i have listened, anyways im building a bigger bore piston rifle so i dont have to worry about those, not enough power problems :) :?
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Unread postAuthor: bigbob12345 » Thu Mar 06, 2008 11:53 pm

500psi?! damn....how and the hell are ya gonna achieve that?


I will take it up to 500psi with the high pressure pump I am working on.
1/2in type L copper body and a floating o-ring
Should be able to get to 500psi[/quote]
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Last edited by bigbob12345 on Fri Mar 07, 2008 9:18 am, edited 2 times in total.
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