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S.W.A.T gun by schmanman

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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does it look evil?

heck yes
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no
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anything but evil!
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anything but evil!
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anything but evil!
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Unread postAuthor: schmanman » Fri Jan 12, 2007 10:06 pm

with a 35 foot long barrel, and the air chambers I have, I think a mile is possible.
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Unread postAuthor: judgment_arms » Fri Jan 12, 2007 10:15 pm

Bluetooth wrote:I was actually kinda talking to judgment_arms about the crazy thing because
judgment_arms wrote:Hey I just ran the thing though the GGDT, guessed at the valve, but it said that you’re about 200FPS away from the sound barrier, maybe you should try and brake that…never mind according to the GGDT if you use a 1oz. projectile you’ll shatter the sound barrier. But I may be stating the obvious… have you broke the sound barrier? Will you try??Am I as crazy as I sound???


I MAY BE CRAZY BUT I AIN’T DUMB!!!!!!!!!! Where’s your plans for an automatic cannon???? Besides, the guys in the white coats left after reading the sign at the end of a the driveway “NO TRESPASSING, violators will be shot, survivors will be shot again”...
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Unread postAuthor: Flying_Salt » Fri Jan 12, 2007 10:35 pm

I found out that this bike pump chamber I have fits perfectly in a 1.5'' sch. 40 barrel. With some duct tape, you may be able to put one in a 2'' barrel. Unless, of course, you put a marble barrel on that gun.
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Unread postAuthor: Recruit » Sat Jan 13, 2007 7:54 am

marble barrel on the swat hmm that would be insane 100psi marble 1 and 1/2 miles or more.
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Unread postAuthor: LucyInTheSky » Sat Jan 13, 2007 9:45 am

Could you not just use heaveyer ammo as then it will go further
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Unread postAuthor: schmanman » Sat Jan 13, 2007 10:11 am

a marble barrel? hmmm, it's a thought. cheap, and powerful. 50 feet should do the trick. :lol:
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Unread postAuthor: turbohacker » Wed Jan 31, 2007 8:21 pm

you shoud try to put a secondary three inch pison as an acuator for the primary pison
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Unread postAuthor: medievalman » Wed Jan 31, 2007 8:45 pm

turbohacker wrote:you shoud try to put a secondary three inch pison as an acuator for the primary pison


and a piston to actuate a piston to actuate a piston to actuate a piston...

see how it just carries on? it probably wouldn't be worth it, a sprinkler valve does just fine, 2-3 fps won't make a difference.

and im surprised ive never looked at this gun before, all i have to say is... AMAZING!
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Unread postAuthor: judgment_arms » Wed Jan 31, 2007 8:52 pm

How about a big 6inch pumpkin barrel? Or a .17cal barrel, that seems to be the trend among most shooters, smaller bullet, higher velocity, less knock down force…sorry got off subject… the bigger the barrel diameter the more efficient the cannon is, so go for a big six incher.
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Unread postAuthor: Velocity » Wed Jan 31, 2007 8:59 pm

Before we continue this discussion on breaking the sound barrier, can someone tell me the parameters they used in GGDT when filling out the specifications for this cannon?
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Unread postAuthor: MrCrowley » Thu Feb 01, 2007 5:28 am

You just need the piston ones right?
All the other parameters are simple but if you need help.....I hardly log off :P
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Unread postAuthor: schmanman » Thu Feb 01, 2007 6:29 am

this thread never dies.... not that I mind. :lol:

the chambers are 10' of 6" pipe, with a 20' long 2" barrel, and I am willing to take it up to 100 psi (while standing at quite a distance, mind you. I really really want a chrony.
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Unread postAuthor: dippydodo03 » Sun Feb 04, 2007 9:21 am

never get tired of watching the swat gun. 8)
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Unread postAuthor: schmanman » Sun Feb 04, 2007 9:23 am

he he he he.....

sorry bout the other day. ice+swat=BOOM!
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Unread postAuthor: dippydodo03 » Sun Feb 04, 2007 10:13 am

no problem. we'll have all summer to shoot randam objects at other random objects.
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