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first attemp at pneumatic cannon>>>swooshhhhhh

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: FORE!!!! » Sun Jul 12, 2009 8:36 pm

theres more to come ill post pictures when my packeges arrive
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13-07-09_1130.jpg
new paint on chamber and fake silencer
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Unread postAuthor: spudtyrrant » Sun Jul 12, 2009 9:01 pm

wtf you paid $160 for a bipod :shock: that you could have easily made and made very nicely out of pvc for 1/8 the price
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Unread postAuthor: FORE!!!! » Sun Jul 12, 2009 9:22 pm

spudtyrrant wrote:wtf you paid $160 for a bipod :shock: that you could have easily made and made very nicely out of pvc for 1/8 the price


lmao not exactly dude im bidding for one atm and dont want any hassels

if u know what i mean ,the other 2 are the exact ones tho....im passionate ,but not idiotic :lol:
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Unread postAuthor: FORE!!!! » Mon Jul 13, 2009 8:31 am

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Unread postAuthor: FORE!!!! » Mon Jul 13, 2009 11:05 pm

just an update ive added a carbon fibre barrel and check out my ammo holder,,,more for show really

cant wait till my laser and scope arrive :twisted:
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14-07-09_1349.jpg
front view carbon fibre barrel and ammo make from aa batteries wraped in tape with the flight sharfts off a packet of darts i had and the nose cone is from the tip of a pen
14-07-09_1350.jpg
another angle
14-07-09_1357.jpg
and my initials on the chamber
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Unread postAuthor: THUNDERLORD » Mon Jul 13, 2009 11:14 pm

Looks nice.
Got any pics of the dart ammo?
Very ergonomical design for shoulder firing and aiming well.
(My own current PVC launcher is similar, except it has a threaded coupling that I put teflon tape on and attach various size chambers).
Constructive critisizim:A sprinkler valve would improve performance.
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Unread postAuthor: FORE!!!! » Mon Jul 13, 2009 11:25 pm

yeah i must say the lack of a sprinkler valve is the only thing thats bothering me but all is well considering attaching one is a breeze

here a pic of my ammo
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14-07-09_1416.jpg
aa batterie ,duct tape,,dart shaft,,pen lid nose cone
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Unread postAuthor: c11man » Mon Jul 13, 2009 11:32 pm

you seem to be spending alot of money on a realy simple gun. i made some ball valve before i knew what "spudguns" where. they were cool but the switch to piston valves is AMAZING. then to get more power i went to a QDV.....
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Unread postAuthor: FORE!!!! » Mon Jul 13, 2009 11:56 pm

spending alot???? all up the extras cost me like 60 bucks ,laser sight and scope but the bi pod is questionable atm due to current bidding price all of witch can be removed and replaced on an updated gun,,appart from the fittings which were like 2-3 dollars for each fitting all the other stuff i had lying around the house.....

as for a piston valve gun it seems a little outta my league atm as im still learning,i would really like to see the difference in power with the same gun but with a sprinkler valve installed ,,the thing is already lethal at the moment it shoots threw 40mm-60mm think of newspapper thats plenty at 80 psi but i would like a little more range considering its affective for about 40-50m without having to add considerable drop in aiming at ur target

if i shoot a marble about 150-200m with a ball valve what distance would i likly achive with a sprinkler valve ??? with my current set up?
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Unread postAuthor: FORE!!!! » Fri Jul 17, 2009 2:01 am

http://www.youtube.com/watch?v=trzvmm192Oc

not much really just shooting at a bottle
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Unread postAuthor: jmadden91 » Fri Jul 17, 2009 3:37 am

Hey mate, very cool
Your from aus right?
Where did you get Your Barrel?
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Unread postAuthor: FORE!!!! » Fri Jul 17, 2009 7:30 am

yeah im from oz lol, the barrel is just 20mm pressure pipe from bunnings, wraped in $50 a meter carbon fibre vinly from autobarn..
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Unread postAuthor: frozebyte » Fri Jul 17, 2009 7:36 am

Don't think it was necessary to spend the 50bucks on a carbon fiber vinyl to strengthen your pvc pipe. That amount could've built you a nice copper gun or two.

Considered saving those for another project?
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Unread postAuthor: inonickname » Fri Jul 17, 2009 7:47 am

I'm gonna have to agree...you are spending a bit on this. My gun, which I will post tomorrow has had less than $100 spent on it (actually, perhaps more), including making a homemade 400 psi pump.

You can buy a $3 laser pointer from a store, carry out a simple mod on it to make it remotely switchable and put a nice case on it for aesthetics. Probably all under $5, presuming you had none of the parts (switch, wires etc to begin with)

By the way, with a ballvalve you will throw your aim off trying to open the valve fast.

Sorry to sound so critical, but it is actually quite a nice gun :cry:
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Unread postAuthor: frozebyte » Fri Jul 17, 2009 7:56 am

It looks much better with those upgrades, and no matter what we say, whats done has already been done, just consider this spud nicely done and finished with! :D (the extras could be diy-ed instead of using real stuff)

I agree with inonickname about the laser pointer, and the bv is going to cripple the spud with those nice add-ons :( a real pity :(

Anyway, if its possible, you could swap in a blowgun valve or something :D
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