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ATAAC - Anti-Tank Assault Air Cannon

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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ATAAC - Anti-Tank Assault Air Cannon

Unread postAuthor: Legendpilot » Sun Mar 04, 2007 11:26 am

Okay, here's the scoop.

I wanted to build another pneumatic, and I wanted it to look downright mean. I wanted something with switches and wires, large diameter pipe yet portable. I wasn't so much concerned with squeezing every potential bit of energy from it, although I did want it to shoot. So here is what I came up with.

Chamber - 4"x26" (appx 327ci)
Barrel - 1.5"x30"
Electronic Solenoid Valve - 1"
Triple Safety Trigger System
No Pressure Gauge
Ammo - PVC Rockets


Yes, yes, I know modifying the sprinkler would yield better results, but again, I was going for overall coolness.

I don't have any damage pics or video yet, it's too darn cold here, but the thing shoots like a beast. I will be putting together something visual in a month or so, once the weather warms a little. For now, here's some pics. Enjoy! -Lp

Edit: I figured I'd share the PVC rockets also. 1" pvc caps reduced to 1/2", filled with cement. I used my 1/2" drill and my dremel kind of like a lathe and got the caps to slide in the barrel just right. I thought cutting the tail like that would give 'em a little spin, but I don't think it serves much purpose other than reducing weight in the tail. They do fly super straight though! :D
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Attachments
100_2446.small.jpg
The bridge. Very easy to construct.
100_2443.small.jpg
Power supply housed inside of trigger handle. 3 9v batteries.
100_2445.small.jpg
Trigger setup. The idea is from another gun I saw, just modified.
100_2447.small.jpg
The whole unit
100_2449.small.jpg
PVC rockets
100_2450.small.jpg
Alternate view
Last edited by Legendpilot on Sun Mar 04, 2007 11:44 am, edited 3 times in total.
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Unread postAuthor: WOW!! » Sun Mar 04, 2007 11:35 am

Good job. I am going to make another cannon like that for my PB games.
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Unread postAuthor: imablackskater » Sun Mar 04, 2007 11:44 am

awesome gun nice paint job and you have acomplished your goal with the wires.
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Unread postAuthor: COD_FILLETS » Sun Mar 04, 2007 11:45 am

That doesnt look too bad, hell, it looks pretty good. Nice wiring too.
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Unread postAuthor: noname » Sun Mar 04, 2007 12:04 pm

Very cool gun, if I must say so myself. Nice paintjob, handles, triggers, pretty much everything.
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Unread postAuthor: Hotwired » Sun Mar 04, 2007 12:05 pm

Very nicely made cannon. I like it when fiddly things like wires and switches are concealed.

I'd disagree with the HUGE chamber:barrel ratio though, its kinda excessive and doesn't really pay off.
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Unread postAuthor: Velocity » Sun Mar 04, 2007 12:19 pm

IT does look very nicely made. I have used that trigger design before, with two buttons and an on/off switch ( I am assuming we got it from the same gun).

But I do agree with Hotwired; the C:B ratio is crazy. Its above 6:1. You generally want to keep it around 2:1
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Unread postAuthor: Legendpilot » Sun Mar 04, 2007 12:33 pm

rmich732 wrote:I do agree with Hotwired; the C:B ratio is crazy. Its above 6:1. You generally want to keep it around 2:1


Yeah, I know and agree also. I wanted it to look 'beefy' but not too big, hence the ratio. The barrel does screw on, so I guess I could ultimately add something later. Heck, I probably should've used 2" for the barrel. I was able to pierce 3/4" plywood with a d-cell battery at 30' using 90psi with the current setup. Thanks for all the comments.
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Unread postAuthor: spudthug » Sun Mar 04, 2007 1:55 pm

sweet gun good job with the wiring and paint....very clean gun no sign of *ghettoishnessity*<i>>><<<

edit: my word is now trademark to spudthug inc and mr. potato pimp...
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Unread postAuthor: experament-u2 » Mon Mar 05, 2007 12:39 am

wow that is a beast niec gun dosnt look to bad
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Unread postAuthor: TwitchTheAussie » Mon Mar 05, 2007 12:42 am

Sweet gun. You completely pulled it off with the wes and switches. Good job and interchangable barrels would kickarse
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Unread postAuthor: Thursto » Mon Mar 05, 2007 12:46 am

Hey Thats a sick ass gun man, i espicially like how all the wires(most of them) are tuckd away, aswell as the batterys. aslo that gun overall looks sick, wouldnt want to get hit by anything out of that cannon sick job :) 8)
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Unread postAuthor: tomthebomb137 » Thu Jun 14, 2007 10:26 pm

lol, your rockets make mine look like total wusses haha
niccee i like the cement
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Unread postAuthor: simo » Fri Jun 15, 2007 1:40 am

looks nice mate nice job but what are those white pegs things for
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Unread postAuthor: Thursto » Fri Jun 15, 2007 7:38 am

OMG Simo read, it says PVC rocket's, as in ammo far out, you have a go at me for stupid things. And simo stop posting random things your just trying to gain spudbux, and that is called post whoring i beleve or something like that. And what makes it even worse is on MSN you go, "oi scott, i just posted bundle load of coments" and i said why just to get spud bux's, they can tell when you do that you know, and he goes "nah they dont knoww me i just say things like, nice gun, is that chamber big enough" BUSTED
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