ATAAC - Anti-Tank Assault Air Cannon

[Legendpilot]

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!

[WOW!!]

Good job. I am going to make another cannon like that for my PB games.

[imablackskater]

awesome gun nice paint job and you have acomplished your goal with the wires.

[COD_FILLETS]

That doesnt look too bad, hell, it looks pretty good. Nice wiring too.

[noname]

Very cool gun, if I must say so myself. Nice paintjob, handles, triggers, pretty much everything.

[Hotwired]

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.

[Velocity]

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

[Legendpilot]

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.

[spudthug]

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...

[experament-u2]

wow that is a beast niec gun dosnt look to bad

[TwitchTheAussie]

Sweet gun. You completely pulled it off with the wes and switches. Good job and interchangable barrels would kickarse

[Thursto]

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)

[tomthebomb137]

lol, your rockets make mine look like total wusses haha
niccee i like the cement

[simo]

looks nice mate nice job but what are those white pegs things for

[Thursto]

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