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ihaveguitarskills! says: Feb 18, 2013. 3:26 PM
In the US, you don't need a 'gun license', because it doesn't exist. You need a 200\$ tax stamp, and a Class III/II Weapons License to buy a silencer.
bighead5454 says: Dec 31, 2011. 6:30 PM
Would a shorter barrel increase or decrease power? It would provide less friction on the ammo, but also provide less length for the pressure to push the ammo, so which would prevail?
barrel length shouldnt "increase" power. it merely makes the energy more efficient. with a short barrel, the projectile gets out fast and the extra pressure will be ejected as well and just wasted. try measure your pressure in atm. it would roughly indicate how much it would expand. i.e. 2 atm will expand to 2 times the chamber volume.

now V = Ad. and we know that the cross sectional area of the pipes are roughly same. so just use length instead of volume
. i.e. 50 cm pipe for chamber at 3 atm shold expand to 150cm.

chamber length + barrel length = final length of air
50 + X = 150
X = 100
so no use of making the barrel longer than 100 cm.

but remember that friction exists and the air cools off on expansion. so it wouldnt expand to 150 on the dot. so, instead of 100cm barrel, cut off some at the end

hope im not wrong, but hope this could help
ihaveguitarskills! in reply to de0509Feb 18, 2013. 3:23 PM
For everything that has a barrel, there is a 'perfect length'. Where its at the point where its most efficient. If the barrel is too long it will lose momentum because the gas or air is expanding, but too short and it wont expand enough.
Thanks for the amazing explanation (that wasn't sarcasm). It helps, and I think is is interesting how even the simplest types of math can be confusing with explanation (I first saw the math, and my jaw dropped, then looked more closely).
stevenh429 says: Nov 1, 2011. 5:43 AM
If you put a t-angle on the barrel with a length of pipe and add a locking tire chuck with an air-compressor...could you make this semi auto? I am going to make this (my 4th airgun, 3 are ball valvers :D)
p.s. put marbles in the t-angle?
ihaveguitarskills! in reply to stevenh429Feb 27, 2012. 7:09 PM
im going to use co2 instead, and then i can maybe make it semi, or possibly full even. make some marble mags.
ihaveguitarskills! in reply to ihaveguitarskills!Feb 18, 2013. 3:21 PM
I never remember reading this ible, and I was browsing the comments and found mine XD
AudioMaximus says: Nov 21, 2011. 5:48 PM
I gotta say that building this as only a 12 year old is quite impressive. Im only 16 and I am on an FRC robotics team (electrical subteam co-leader!) so i work with these kinds of things a lot. nevertheless, i love the fact that younger kids are getting into this kind of stuff. Kudos to u, good sir.
LiquidLightning says: Aug 8, 2011. 7:12 PM
Nope, no license needed. At least in the US, I remember just walking into big 5 when I was twelve and buying a high power rifle scope, they didn't say a thing except "Thanks come again".
syco kid says: Feb 8, 2011. 10:54 PM
hey does it have to be a car tube valve or can it be a normal push bike tube valve
LiquidLightning in reply to syco kidAug 8, 2011. 7:09 PM
They are usually exactly the same, except that car valves are seperate pieces and bike valves are integral to the inner tube.
B00GYman says: Apr 30, 2011. 1:15 AM
why is a sprinkerler valve better? what is the advantage?
Electroinnovation in reply to B00GYmanJun 16, 2011. 7:15 AM
Because the way they are designed makes it so it is a lot easier to release all of the air at once, where ball valves depend on user speed. The sprinkler valves allow more air out quicker thus resulting in a faster and more accurate shot. Also, its much less of a pain to squeeze a trigger than to rapidly twist a valve.
apples!!!!! says: May 12, 2011. 3:10 PM
I watched that video.

Do I bloody like apples? That pained me.

...on a more serious note, excellent build.
cloveless says: Mar 27, 2011. 3:38 PM
Excuse can somebody plzz tell me wat does "over under bit" mean on one of the pvc pipes when u hover your mouse over it???????!!!!!!!.............PLEASE REPLY I WANNA SHOOOT MANY MANY SQUIRELS
PKTraceur says: Jan 18, 2009. 6:36 AM
NG audio portal rocks!
blugyblug in reply to PKTraceurJan 19, 2009. 10:50 PM
I know! Dimrain47 makes the best techno. My favorite is TT or maybe The Prototype..
ElvenChild in reply to blugyblugMar 14, 2011. 9:33 AM
I prefer the kriotube and the piano translations made by fans
saukmulti says: Feb 27, 2011. 2:42 AM
i'm feeling stupid
i don't know if im stoopid
but how many valve does it used??
can u make a video for making them
cohlms says: Feb 25, 2011. 11:06 AM
does the sprinler valve let all the preasure out at once or is it controllable ?
dinu555 says: Dec 19, 2010. 6:51 AM
GUYS I GOT A DOUBT

CAN ANY1 CLARIFY ME
wardog says: Oct 14, 2010. 9:09 PM
Can i use marbles as my ammo? :DD
awaite says: Sep 29, 2010. 9:21 AM
Do you reckon u could do some small game hunting with this gun like rabbits?
Thomas Crowe says: Jul 16, 2010. 5:14 AM
Not everywhere! Murder is illegal...lol!
brum says: Jun 28, 2010. 9:43 PM
Hey can anyone please give me a hand, i have made my gun but even at 85 psi the diaphram wont pop up and let all the pressure through and i dunno y. its not the spring cos i took it out and it made no difference, u said u used 40 psi maybe the rubber is stiffer or the whole in the diaphram is too big just wanna get opinions.
brum in reply to brumJun 28, 2010. 9:51 PM
This project cost me approximately \$80AU
brum in reply to brumJun 30, 2010. 5:13 AM
Never mind i found that the hole in the diaphragm to let the air through and where the guide rod goes was to big a gap so i filled the sides of the guide rod with hot glue, and um, WOW WHAT A HOME-MADE WEAPON, CRAZY POWERFUL AT 80-85 PSI, HAVEN'T TRIED ABOVE THAT (compressor restrictions) highly recommend these concepts but be creative and come up with a slightly different way of doing it like I did. GOOD LUCK TO ANYONE TRYING THIS! WELL WORTH IT WHEN U GET IT RIGHT...
Vulcanator says: Apr 6, 2010. 2:41 PM
Does anyone know of a reliable way/source of cheap ammunition for a 1 inch barrel? other than what was mentioned above..
brain in a jar in reply to VulcanatorJun 1, 2010. 12:40 AM
if you had a 15 mm barrel like my spud rifle, you can get a 4 inch galvanized nail and pit it down the actual center of a nozzle from a hand silicon putty gun thing.
like the ones on the end of liquid nails.
bombmaker2 in reply to VulcanatorMay 1, 2010. 10:15 AM
You could use plaster of paris lugs in the barrel. There's an instructable about it somewhere but i can't recall the name.
brum says: May 25, 2010. 4:00 AM
Not in Australia mate, im an aussie with a firearm licence and i know u dont need one to buy a scope, however i am quite sure that silencers are illeagal in australia, especially concidering that they have banned hand guns. i am going to make this only a bit more snazzy. Got a scope that i bout ages ago for an air rifle, 12x zoom and also a bolt action so that the ammo doesnt have to be barrel fed. Marbles will be the ammo. Just with the modding of the sprinkler valve i have found one (also know i found as a solenoid valve but even your local plumbing expert may not know what ur on about) the one i have has a plasic diaphram guide pole and now solenoid or flow control (less work) is the best option just drilling next to it and tapping the hole and inserting the adapter? also with the hose that goes to the trigger anything in particular (pressure rated)?
thelastonekills says: Mar 26, 2010. 11:44 PM
i made one and nuts and bolts are cool ammo. but ferrite core's with silicon in the middle are fun as hell!!!
bombmaker2 says: Mar 25, 2010. 4:31 PM
I don't know exactly how I'm gonna do it, but once I build an exact replica of the Barret M82A3 .50 caliber sniper I will find a way to fit this gun (with some slight mods) into the case.
messmaker says: Mar 21, 2010. 5:41 AM
Aussies rule =D

Not many of us on here blugy =]
2bigbros says: Feb 12, 2010. 7:59 PM
i made it and it looks awesome!!!!!! excepted im making mine for paintballs
knuckel says: Feb 7, 2010. 6:26 PM
Mine does like the same stuff except from like 150 feet away
igaara says: Feb 5, 2010. 5:25 AM
im new to this so i wanted to know how to pump the air in the gun. Is it through the air tube from the tire? Any help is greatly appreciated.
bowmaster says: Jan 22, 2010. 7:18 PM
*cough*blowgundarts*cough*
fede casagrande says: Jan 14, 2010. 7:55 PM
Did you realy think we nead more weapons to play with???

Realmente pensas que necesitamos mas armas con las que jugar???
a Qué?

desde SudAmerica.

F-
jj.inc says: Nov 27, 2009. 6:45 AM
I like your design's key features
-long accurate barrel
-large volume of air

I had one but the air tank exploded so I am looking for a design with allot air volume so I wont need as high of a PSI.

Great Job
rownhunt says: Nov 16, 2009. 5:41 PM
How much will this all cost?
LkArio says: Jan 30, 2009. 8:56 PM
That's pretty cool, but a smooth bore barrel is not something a sniper would use... It'd be awesome if you could rifle it... Does it recoil at all? I owned a spring pellet gun, it recoiled quite a bit. I haven't seen any recoil at all when pneumatics are shot. Can you feel anything when you fire?
cuchulain92 in reply to LkArioNov 8, 2009. 12:44 PM
Projectiles can be stabilized in any of three different manners:
spin-stabilized (usually done by a rifled barrel)
fin-stabilized (often found on rockets)
mass-stabilized (rare)

Spin-stabilization relies upon gyroscopic action to keep a projectile from wobbling. Fins can be used to impart spin, or to stabilize a projectile with a high enough length:diameter ratio. Closer to 3:1, spin is more effective; at 10:1 fins work better.
High accuracy can be achieved with either method.
dasgemuse in reply to LkArioJun 16, 2009. 9:08 AM
you can buy rifled pvc barrels for potato guns. they exist
blugyblug in reply to dasgemuseJun 17, 2009. 12:35 AM
Yeah you can make them yourself too :P Its kinda weird, you have to hammer nails through a long piece of round wood that fits your barrel with like 1 or 2mm of space. You hammer them in so that a tiny bit shows through the other end. You hammer like 3 nails in, then put it into your barrel and twist as you push it in. Id rather not do it, this is accurate enough for about 30-50m (with those air hose bullets, which arent that great for shooting.) Couldnt be bothered making shaped bullets with plaster and stuff...
Loveofchaos in reply to LkArioFeb 17, 2009. 7:21 PM
Yeahhhh were gonna rifle a PVC barrel..... for a potato...... wow....
blugyblug in reply to LkArioJan 30, 2009. 9:26 PM
HAvent seen any? Really? This definitely has recoil, the tip goes up like 15 cm at ~50-60 psi. When you shoot water it goes up like 30cm (a foot)
QuiksilverRox in reply to blugyblugJul 3, 2009. 3:44 PM
My friend has one with a 1 barrel thats 3' long with about 5' of 2 pvc for the chamber. We filled it up with water and I shot it. I got a huge bruse!
harley_rly says: Dec 28, 2008. 11:42 PM
if you were to make an auto you could take a slightly larger pipe and slide over to make a bolt then take the gas tube of of a semi- auto rifle and drill out a hole in the barrel and attach that, and finally add a feeder, so wouldnt be to hard
NIJU! in reply to harley_rlyAug 9, 2009. 1:35 AM
be careful with gas reloading guns they can burn holes through your hand (from the exhaust hole)
harley_rly in reply to NIJU!Aug 28, 2009. 3:29 PM
what exhaust hole? the way my SKS is set up the pressurized gasses in the barrel are directed up, backwards, and onto a piston, which then has a rod running back to the bolt, so that when a bullet is fired the rod hits the bolt knocking it back...the only hole is inside the barrel. now on an AR-15 or M16 they use the gasses them self, directed backwards and onto the bold(which is a dumb idea relative to the previous design used in SKS' and AK-47's) so there might be a problem there
toxicwolf in reply to harley_rlyOct 15, 2009. 2:02 PM
dude SKSs are too damn dangerous
the fieing mechanism in them just dangles and wiggles
just a tap on the stock and BAMM one wasted round
+ most have a hare trigger

P.S. AK-74s are much better

P.S. im talking about the real deal
not air soft
harley_rly in reply to toxicwolfOct 27, 2009. 5:26 PM
they may go off randomly, but your not giving the trigger group as much credit as it should get. They're actually rather sturdy built, most just have a weak seer pin and can randomly release the hammer at anytime. The Russian models generally have stronger trigger pulls and don't have that problem. And as long as you don't leave a shell in the chamber, there won't be any problems
toxicwolf in reply to harley_rlyOct 31, 2009. 11:10 AM
yes i know that but im refering to the inccidint in russia with the six gangsters in a car with the subwolfers pump wide open
the whole car was shaking
the guns went off
shot and killed 4 of them
most morons leave the chambers loaded
they were early russian SKSs though (bad model)
NIJU! in reply to harley_rlySep 3, 2009. 2:29 AM
no im talking about a F88 AuSteyr
harley_rly in reply to NIJU!Sep 6, 2009. 12:40 PM
oic...are you from australia?
NIJU! in reply to harley_rlyOct 5, 2009. 1:37 AM
yes
blugyblug in reply to harley_rlyDec 29, 2008. 1:55 AM
"gas tube of of a semi- auto rifle" "add a feeder" "make a bolt " Easier said than done. Add a feeder... If you had an auto the rush of air in the barrel would just push all the ammo upwards, you can use a Blow forward bolt (Pretty cool actually), or Hydraulic loaders... (even cooler lol)
PKTraceur in reply to blugyblugJan 12, 2009. 12:36 PM
Does a blow-foreward bolt have a hole in the center to direct the air away from the feeder?
popomaster says: Oct 16, 2009. 7:09 PM
No offense, but a ball valve it a pretty good valve. It can be be pretty advanced with a "spring trigger" set up. Also, a piston valve with a ball valve is still much more difficult then a sprinkler valve, its also stronger. Ball valves don't make a gun a "newb" gun, as it is a very basic, but durable valve. It can also be used as a safety if your using a different valve for the trigger. I'd have to say the most advanced trigger would be either a solenoid valve or any homemade valve (or a QEV)

Rofl, nice gun btw. Can't wait to start on my shotgun :D
Gh{O}sT says: Jun 21, 2009. 2:51 AM
toxicwolf in reply to Gh{O}sTOct 15, 2009. 2:10 PM
dude when i was 10 i made rc air soft tank the size of a coffee tablethe turret was so powerful i busted my window with one shot
the ammo was regular air soft pellets
problem is i dont remembered how i made it if i did remember iwould do an instructible on it
toxicwolf says: Oct 15, 2009. 1:54 PM
you could use the scope from a 22rifle
pie R []ed says: Jun 19, 2009. 11:41 AM
I just did the math and the price totals out to be around \$100.
minerug in reply to pie R []edJul 15, 2009. 4:41 AM
It depends on where you live. Living in Asia (which I do), plastic things are dirt cheap, and you could pull together something like this for 40RM max (around 10USD)
muttyfutty in reply to minerugOct 7, 2009. 6:13 AM
AHHHH!!!
You live in malaysia to?
Sama sama! lol
Sorry, just suprised!
Also Have you tried a fire extinguisher? I have and works really well (Takes ages to charge up) and the compresser sometimes gets hot and overheats...
minerug in reply to muttyfuttyOct 7, 2009. 3:46 PM
What part of the fire extinguisher?
muttyfutty in reply to minerugOct 8, 2009. 12:57 AM
I use the Tank and the internal valve, which is better than a Ball Valve, as I can slam my fist down and it opens pretty fast!
RMConstruction says: Oct 2, 2009. 11:56 PM
Depends where.
NIJU! says: Aug 9, 2009. 1:32 AM
want me to post vid of me shooting a sinker nearly all the way through a banana using a mini combustion gun?
xZCodmaNZx in reply to NIJU!Aug 16, 2009. 7:12 AM
hell ya
samdaman says: Jul 24, 2009. 1:35 PM
hey nice work man can you turn this thing into like a super powered watergun? and where can i get all of the parts in NZ
Tanostalgia in reply to samdamanJul 24, 2009. 5:59 PM
Well, Why don't u try to do a Super Powered Watergun, and try to post it ;D ?
unknown000 says: Jul 6, 2009. 6:29 PM
have you tried a tazer glove need help
QuiksilverRox says: Jul 2, 2009. 6:45 PM
I love how strong the recoil is with water. I also love taping the barrel closed with duct or packing tape, it sounds like a gunshot!!!
blugyblug in reply to QuiksilverRoxJul 3, 2009. 2:09 AM
Gotta try that, but then again there is that little problem of my really pansy neighbours.
knifepyro says: Jun 21, 2009. 7:06 AM
lord voldamort says: Jun 19, 2009. 6:18 PM
when you shot the apple, i thought, William Tell!
snelpiller says: May 30, 2009. 3:10 AM
So the sprinkler valve is the actual main vale that releases the air into the barrel? and without mod it would be triggered by current? Is it really necessary to modify it then or could you use is unmodified and trigger it with a current? Or does the mod involve something else then just changing the way that u trigger it? Reply would be much appreciated
blugyblug in reply to snelpillerMay 30, 2009. 5:53 PM
The mod opens it faster, without the mod it would open really slowly.
Sprinkler valves were made to open slowly because theres supposed to be water going through it (sprinkler valve) so if it opened to fast the water would be going through really fast, and that damages the valve.
You can do it unmodified, but its alot slower. Like 5x slower. Seriously. Im not exaggerating
snelpiller in reply to blugyblugMay 31, 2009. 2:50 AM
I see, well then its a necessary mod :) Thx for the reply!
Just one more question, could u use a normal vale, like a ball valve or is this solutions superior in some way? :P
blugyblug in reply to snelpillerMay 31, 2009. 4:00 AM
Umm, a ball valve uses your hand to open the valve, and is pretty slow. Air at 50psi moves alot faster than your hand so it all gets out before the valve is even halfway open. A ball valve is actually pretty good for a sprinkler valve though, you can mod the sprinkler valve with the ball valve. A sprinkler valve is faster because it uses pressure differences. The air below lifts the rubber diaphragm up when there is no resistance from the top (no resistance because the blowgun valve just vented it out.)
snelpiller in reply to blugyblugMay 31, 2009. 7:40 AM
Yeah, thanks again! =) <br/>btw, your whole "rifle" acts as a aircontainer dosent it? so you have to make sure that all the parts can handle alot of preasure right?<br/>
blugyblug in reply to snelpillerJun 1, 2009. 12:27 AM
yep
snelpiller in reply to blugyblugJun 1, 2009. 4:27 AM
cool, thanks for all the help man =)
amarsar in reply to snelpillerJun 10, 2009. 6:00 PM
one more thing about the sprinkler valve mod, if you get a Toro model valve, it opens quicker than others and works moderately well (i tested it) but probably only at 60 % of the moded ones power.
XkidXhavocX says: Jun 3, 2009. 8:06 PM
could i use a bigger chamber and a smaller valve? would that increase the velocity? accuracy? just wonderin..... ive got all the valves and connectors but theyre bigger and smaller than yours. none are the same size as yours..
blugyblug in reply to XkidXhavocXJun 4, 2009. 12:25 AM
It wouldnt really increase the velocity much. Cuz if theres a smaller valve less air gets through, even though you have a bigger chamber
XkidXhavocX in reply to blugyblugJun 8, 2009. 12:27 AM
ok thanks bud.
turbo0115 says: May 3, 2009. 12:51 AM
i dont completely understand how filling the chamber with air and then pressing the air gun makes it fire?
austinburke. in reply to turbo0115May 10, 2009. 5:59 PM
When you press the trigger it opens a valve and the pressure in the chamber will try to find the quickest way to escape, which is, thorugh the barrel. It will push your ammo out of the barrel and out into the air at your unsuspecting victim. (:
eriko says: Apr 30, 2009. 6:29 AM
ok, but u think i can use a mettalic valve? and mettalic pipe instead of PVC?
eriko says: Apr 29, 2009. 7:23 AM
how much psi do u use? and can i use the ball-valve at step 5 as trigger?
blugyblug in reply to erikoApr 30, 2009. 1:32 AM
I use about 40-80psi. At +60 psi its pretty loud and my neighbours are little pansies and get scared of everything and will probably call the police if they hear it a few times. Using a ball valve as a trigger sucks. No seriously. The twisting of the valve makes it so the air bounces around the barrel. (It gets let out at the side of the valve, since your twisting it) When the air bounces around the ammo bounces around and gets all innaccurate. Plus all the air in your chamber will probably be out by the time you've opened it a quarter of the way. Air at 50psi is like faster than a ferrari.
amature engineer says: Apr 14, 2009. 1:43 PM
Can I put bbs in this, or anything els that can kill a frog? That shotgun shell looks sweet. Thanks, AM
blugyblug in reply to amature engineerApr 14, 2009. 8:53 PM
You can put whatever fits in the barrel. Erm, If you kill a frog, and something bad comes out of it, im not involved.
amature engineer says: Apr 14, 2009. 1:44 PM
And do you have to pump this up before a shot? So it would go: pump, shoot, pump shoot. Sounds kinda slow.
blugyblug in reply to amature engineerApr 14, 2009. 8:52 PM
Yeah you do. But if you want auto/semi auto, go ahead and make one, post an ible if you can. It would be pretty cool.
voltagedude says: Apr 7, 2009. 5:08 PM
wat is your ammo? basicaly wat are you using!!
Videogamer in reply to voltagedudeApr 7, 2009. 6:13 PM
i plan on using AA batteries since i have a lot
Kazeem in reply to VideogamerApr 8, 2009. 2:03 PM
That could probably be quite dangerous if they explode.... they do say never to pierce or damage batteries...
blugyblug in reply to KazeemApr 8, 2009. 11:21 PM
They do say never to use PVC pipe in Air rifles... And they tell you not to use deodarant for anything other than what is said.
Videogamer in reply to KazeemApr 8, 2009. 3:30 PM
I'm gonna use batteries that are used- I don't think it would be an issue w/out the battery acid
Kazeem in reply to VideogamerApr 9, 2009. 1:17 PM
I'm sure they dont use up the substance as the battery is used, it just stops reacting.... i may be wrong.... but i think they're as dangerous before or after being run down.... Also, household batteries use a type of alkali, hence they are alkaline batteries...
Videogamer in reply to KazeemApr 9, 2009. 3:25 PM
well thanks 4 saying so anyways
blugyblug in reply to VideogamerApr 8, 2009. 11:22 PM
Batteries arent the best ammo. They are heavy, yeah but they are too long and aren't aerodynamic.
imthatguy1125 says: Apr 4, 2009. 4:31 PM
how much did the valve cost
blugyblug in reply to imthatguy1125Apr 4, 2009. 8:03 PM
Erm it says in the first step. Mine was AU\$25, and with this economic crisis, is about US\$15. Yeah, Im a real nerd, I actually pay attention to the market reports.
lukeyj15 says: Mar 13, 2009. 6:08 PM
Add some videos of it working
XkidXhavocX says: Mar 8, 2009. 2:57 PM
you could make it semi auto by putting a Co2 tank attachment on the air chamber part then by putting a bolt onto the barrel.... if you could try it id like to see it... nice gun tho
blugyblug in reply to XkidXhavocXMar 9, 2009. 1:40 AM
Yeah lots of people say that, but its impractical unless its for a big airsoft game/tournament or something. There are harder, but better, faster and stronger ways of making it semi auto. (Blow forward Bolt, try searching that somewhere)
XkidXhavocX in reply to blugyblugMar 12, 2009. 5:54 PM
<----one more question.... how do you get a picture there?
blugyblug says: Mar 9, 2009. 1:39 AM
Where does it leak? Through the connection (Where it connectes to the pipe) or the end (Where the air is supposed to come out when you press it down) If its leaking through the connection put Epoxy there, or more teflon tape. Make sure its fully screwed down. If its leaking through the end u better get a new one.
nononame in reply to blugyblugMar 11, 2009. 3:00 PM
Its leaking through the part where the trigger of the blowgun is attached to the blowgun body. any idea?
blugyblug in reply to nononameMar 11, 2009. 11:40 PM
Ehh??? Right then thats really weird. You probably have some crap blowgun haha. I guess youll just have to buy a new one. A leaking blowgun is really dangerous though, if the gun was loaded and pumped and the blowgun started leaking, it would be the same as pulling the trigger and it would shoot somewhere you dont like...
matthew panter says: Feb 25, 2009. 5:05 AM
what do you do if you overload it with air and it all breaks down
blugyblug in reply to matthew panterFeb 25, 2009. 10:05 PM
What do you think?
It will explode, send pieces of PVC flying everywhere and be really scary =D
curlyfry562 says: Feb 23, 2009. 10:44 PM
Thia looks like it would be perfect for shooting glowsticks, which may I add is the perfect night time ammo
Jan 21, 2009. 6:14 PM
to make loading the spuds easyier you could file down the end of the gun so it forms a point.... just an idea to make things easyier
blugyblug in reply to the mechanical engineerJan 22, 2009. 4:51 PM
Uhh what..? You mean a barrel knife? It sounded like you meant to make the end of the barrel smaller, then the ammo couldnt get out...
the mechanical engineer in reply to blugyblugJan 22, 2009. 6:43 PM
no just make the end of the barrel sharp so it looks like this: the diameter don't change at all /l l\ / l l \ l l l l l l l l
cheeseboy says: Nov 1, 2008. 6:06 PM
just in case you don't already know in Australia in most states (not sure about tassie) pneumatic cannons are classified as class A fire arms, and combustion's as class E. If you are found with a class A firearm the police will dismantle it and give you back the pieces to dispose of, caught a second time and you face a hefty fine. If you are caught with a Combustion or Hybrid cannon classified as class E you will be charged the same as if you had an RPG or Machine gun... sorry to be a spoil sport but building a combustion or Hybrid is just not worth it. I know this is a pneumatic but everyone should be careful because the Australian firearm laws are ****ed up,

here it is explained much more thoroughly =)
spudfiles australian laws

sorry for the long message =(
blugyblug in reply to cheeseboyNov 2, 2008. 11:10 PM
Yeah true, about combustions and hybrids. With combustions something explodes inside a chamber which sends something flying out the other end. This is the same with real guns, even though they use gunpowder, theres still an explosion.
cheeseboy in reply to blugyblugNov 3, 2008. 12:16 AM
yeah sometimes I hate the Australian firearms laws, but hearing about the kid shot trick or treating by a guy thinking he was a robber makes me appreciate them. its just a question of where to draw the line, i own a pneumatic but have a friend who got into some deep **** over a hybrid cannon, and this was in the country near orange. the laws need some tweaking, there should be a momentum limit like in Canada and most of Europe.
blugyblug in reply to cheeseboyNov 4, 2008. 10:09 PM
Yeah I like that momentum limit. But with pneumatics the pressure can vary so its kinda tricky. You might say that you use it at 100psi, which might be below the momentum limit. But you might ACTUALLY use it at 150psi, which might be above the limit.
cheeseboy in reply to blugyblugNov 4, 2008. 10:20 PM
no we wouldn't *winks*. although there is group called air soft Australia that want air soft guns allowed without a firearms license, if this works the pneumatics will be completely legal as they fall under the same category, although saying a hybrid or combustion is on the same level as a machine gun or RPG is just crazy, those little piezoelectric pill bottle ones are also in that category, I know which one I'd rather be shot with.
harley_rly in reply to cheeseboyDec 28, 2008. 11:46 PM
all that is crazy here in America you can buy Barrett .50 caliber rifles(which have been known to shoot accurately at 2400 yards, AK-47's, and all that awesome stuff at gunshows as long as you don't have a criminal record
PKTraceur in reply to harley_rlyJan 1, 2009. 8:43 AM
No, you cannot buy a sni-- acually you can. But I KNOW that you cannot buy an AK47 as it is fully automatic, so I know that it is illegal.
Kaelessin in reply to PKTraceurJan 12, 2009. 11:07 AM
Yes and no . . . actually you can buy an AK-47 (at least here in Arizona) as long as it's a version which doesn't come with fully automatic functionality; I've seen them in multiple shops . . . I think that's rather counter intuitive (that is what good is an assault rifle with no full auto) but at the same time, why would a civvy need something fully automatic?
bwpatton1 in reply to KaelessinJan 17, 2009. 8:11 PM
You can buy any kind of firearm you want, as long as it is modified, so that it isnt automatic and could not be made back into a fully automatic. Technically you could buy a fully automatic weapon, but you would have to have a license (of which I cannot remember the number)(class 3 possibly?.....?.....?????) This is only in the United States though.
PKTraceur in reply to KaelessinJan 12, 2009. 12:32 PM
That's kind of the same thing as saying why would a civilian need a suppressor or silencer? A suppressor reduces muzzle flash and silences it, whereas a silencer does just silencing.
Kaelessin in reply to PKTraceurJan 12, 2009. 1:39 PM
*scratches head* sorry if I was unclear but I wasn't disputing semantics or anything . . .merely saying that civilians can buy an AK but the ones available to them are only semi automatic. Then I went off on a tangent about the amusing qualities of a semi automatic assault rifle.

I'm not sure how suppressors/silencers figure in (probably being thick on my part but I figure that if you went to the trouble to comment I ought to at least try to understand)
PKTraceur in reply to KaelessinJan 12, 2009. 2:10 PM
Well, if you want an CivAK47, could'nt you just buy a semi-auto rifle and add AK looking pieces to it? Would'nt it be the same thing? (The silencer/suppressor thing was just a passing thought.)
Kaelessin in reply to PKTraceurJan 12, 2009. 4:12 PM
you could and it'd be pretty sweet but it wouldn't be the same sentimentally as owning a russian ak with all the authenticity (what little is left after they remove the main function) personally I'm more than happy with a bolt action high powered rifle but only because I care more for accuracy than legacy.
PKTraceur in reply to KaelessinJan 18, 2009. 6:38 AM
Same. I think AK's are overkill, in literal and figurative, bulky, however they are amazingly rugged, compared to American arms which shatter if you drop from a foot-and-a-halfup! LoL...
Friedto in reply to PKTraceurJan 1, 2009. 8:21 PM
Yeah, you can buy an AK-47. And a sniper rifle isn't a specific gun, it is a gun that has been modified or designed for long range shooting. My .270 deer rifle has a high power scope, bipod, and numerous gunsmithing modifications, so that could be considered a sniper rifle.
blugyblug in reply to harley_rlyDec 29, 2008. 1:44 AM
Yeah i know. But Ak-47 and ESPECIALLY Sniper Rifles? Are you sure...I thought they were outlawed in every country, guns licence or not (You can only legally own one if you are in the military)
cheeseboy in reply to blugyblugDec 30, 2008. 2:07 AM
most assault rifles require a license in America, they are basically the only guns that do, but yes when I went to America I went to a gun store and they had snipers for sale all you need to get it is to not be crazy, some assault rifles like the P90 are legal without a license, but other guns like AK-47's and RPG's require a basic license, the equivalent of making a potato cannon here is getting an AK in America.
harley_rly in reply to cheeseboyJan 17, 2009. 10:57 AM
I went to a gun show here in Oklahoma and they sold full-auto real AK-47's as long as you didnt have a criminal record
PKTraceur in reply to cheeseboyJan 12, 2009. 12:34 PM
The "gunstore" you went to probobly sold the P90 as a showpiece, or removed the auto firing mechanism. I saw a Thompson, P90, and a Tommy Gun all on the same wall of a local gunstore.
belegstrong says: Jan 1, 2009. 8:05 PM
what psi should be attained?
Kaelessin in reply to belegstrongJan 12, 2009. 1:43 PM
heh heh depends on what sorts of risks you're willing to take! I've seen videos where folks cram in over 200psi but I find that to be way too risky so I never go over 75. At 45 psi, my pneumatic dart guns can send a piece of sharpened coat hanger 4+ inches into a dried out palm tree stump from 40 feet(I'd go farther but the yard curves and doesn't allow for longer shots) . . .at 75psi I can only guess since they get buried completely.
rock climber says: Sep 13, 2008. 2:02 PM
The video was awesome. I am planing on building a similar cannon, but with a steel stock
blugyblug in reply to rock climberSep 13, 2008. 7:39 PM
Thanks, Is the stock going to be part of the chamber? Or just a little bit of steel coming out. Its going to be pretty heavy too. The stock should probably be like 1'(25mm) thick. Thats a bit on the weighty side.
rock climber in reply to blugyblugSep 14, 2008. 6:48 AM
I didn't realize how heavy that is going to be, so I made some plans for an air gun that uses a small lantern fuel tank and a few pieces of iron to connect it to the valve. It will still end up pretty heavy but not as heavy as my original plan.
blugyblug in reply to rock climberDec 9, 2008. 9:32 PM
Try using timber putty or something
rock climber in reply to blugyblugDec 12, 2008. 5:04 AM
I have completly changed the design (again). it is lighter and more compact now but able to use 2in. barrels down to 1/2in. barrels
perryhuang12 in reply to rock climberNov 28, 2008. 10:34 PM
hi its really cool
rock climber in reply to rock climberSep 14, 2008. 7:07 AM
Here is a diagram of what it should turn out like. I Waited a very large air tank so I am using a propane tank (green). The light gray parts are pvc, and the dark gray parts are iron fittings.
blugyblug in reply to rock climberSep 16, 2008. 2:01 AM
Whats the point of a propane tank? Its just going to be heavy and sure, it can take alot of pressure but it is connected to PVC pipe. The propane tank can take say 2000psi. But the PVC can only take about 200psi. So the max you will be about to pressurise will only be 200psi. Remember, the chambers max pressure is the strength of the weakest part of the chamber I wouldnt connect 2 ends of the propane tank to the PVC. You will have to drill a hole, shove a fitting in an drown it in epoxy. It would be pretty weak.
rock climber in reply to blugyblugSep 18, 2008. 8:06 PM
The pvc pieces are 3/4 in and 1/2 in. My pipe of that diameter can hold 450psi.
blugyblug in reply to blugyblugSep 16, 2008. 2:06 AM
If you want, you can make the entire chamber out of Galvanised Steel (ALWAYS GALV STEEL, its cheap, strong and doesnt rust) with preferably threaded fittings. I wouldnt recommend it though, Galv steel is usually used on hybrids where pressure spikes to 1500psi. For a pneumatic, reaching 1500psi would need a hello strong compressor. Try some copper guns, they are awesome
harley_rly in reply to blugyblugDec 28, 2008. 11:39 PM
I wouldn't make it that powerful, if you were to fire something solid out of that it would most likely be lethal and in my area illegal.
partyfreak227 says: Dec 8, 2008. 3:44 PM
ok nice gun but the chamber is a major air restriction you chould block off some of the path ways with epoxy nice beginners gun i am on to more advanced things but nice job u shuld give it a paint job
blugyblug in reply to partyfreak227Dec 9, 2008. 9:32 PM
Yeah i know, but it looks cool without adding another big chamber thing
LED master22 says: Nov 30, 2008. 8:11 PM
anybody ever get screwed over by a drunk?
Baldwin1993 says: Nov 6, 2008. 1:58 AM
dude where do u get ur sprinkler valve from???
fireblast_1212 says: Nov 1, 2008. 4:12 PM
What the heck does 'go sneeze a pillow case' mean? Only a crazy person would think of that.
blugyblug in reply to fireblast_1212Nov 2, 2008. 11:10 PM
Exactly what it means
blugyblug in reply to blugyblugNov 2, 2008. 11:11 PM
You can snort one if you want.
halogirl says: Oct 25, 2008. 8:12 PM
GO SNEEZE A PILLOWCASE???????
blugyblug in reply to halogirlOct 25, 2008. 9:26 PM
Go sneeze a pillowcase? Hey whered you get that, I have that for my MSN thingy.
halogirl in reply to blugyblugOct 26, 2008. 3:49 PM
he says this in step one after the list what you need "ALL PRICES ARE APPROXIMATE, AND AROUND THE PRICES I GOT THEM FOR. FOR YOU IT MIGHT BE CHEAPER OR MORE EXPENSIVE. DONT BLAME ME. GO SNEEZE A PILLOWCASE"
blugyblug in reply to halogirlOct 26, 2008. 10:27 PM
Oh yeah thats right. I did put that there didnt I...
halogirl says: Oct 25, 2008. 8:24 PM
whats with the shift key usb?
starwing123 says: Oct 24, 2008. 5:35 PM
I have a question, When I test my sniper, how loud is it at 60 psi? I know how loud it is at 30, but I haven't gone higher for fear of too loud of a noise without ear protection.
blugyblug in reply to starwing123Oct 24, 2008. 10:23 PM
60PSI? Its not too loud. You start to need ear protection when you start going above 120psi. If you are going to shoot like 50 60psi shots in an hour or something youll probably need ear protection
Jor2daje says: Oct 4, 2008. 8:03 PM
I just made one of these and it is awesome, I shot a Co2 cylinder through a sheet of thin steel. I was thinking if you could make one with a two chambers, one large one to act as a reservoir for air pressure, this chamber is connected to the other smaller chamber by a ball valve. You fill up the big one with the valve open then close it and then shoot. Open the valve again to fill the small chamber, close it and shoot again etc. Maybe if you do this you could get a couple shots of without going back to the compressor.
starwing123 in reply to Jor2dajeOct 22, 2008. 2:51 PM
I think the problem is that it would be less powerful.
dkfa says: Sep 25, 2008. 2:52 PM
can I use 3/4 inch wide pvc pipe for the gun? It will be slightly bigger but can it still work?
blugyblug in reply to dkfaSep 25, 2008. 11:23 PM
whoah whoa whoa too many questions. okay. 3/4 inch pipe for the barrel or chamber? If its for the barrel you should make the chamber 1 1/4 inch because the chamber-barrel ratio is screwed if you have 1inch chamber and 3/4 barrel. (C:B Ratio is the ratio between the chamber compared to the barrel. A large chamber is better, but it gets ineffecient e.g a C:B ratio of 1.8:1 (this is the best) will shoot lets say 300metres. but a C:B ratio of like 10:1 will shoot probably only 500-600metres. SO you will ahve to pump heaps and all this other stuff. For your question. Anything will work if ur talking about the chamber and barrel size. Just the volume of the chamber should be 1.8 times bigger than the volume of the barrel.
dkfa in reply to blugyblugOct 16, 2008. 5:46 PM
So the stock has to be slightly bigger then the barrel right? Because I found out an 1/2 inch barrel wont fit a .68 paintball.
blugyblug in reply to dkfaOct 17, 2008. 12:59 AM
Uhh. The stock(chamber/ air tank) should be 1.8x bigger than the barrel. So yeah, youre right. 1/2 barrels shoot marbles and batteries pretty well.
dkfa in reply to blugyblugSep 26, 2008. 3:47 PM
No, i ment that could I change everything into a 3/4 wide? It will still be the same thing but not the pvc wideness.
blugyblug in reply to dkfaSep 26, 2008. 4:50 PM
everything? Yeah i guess but the chamber to barrel ratio will be kinda stuffed up. It wont be as powerful. But if you want, go ahead and do it! Its your gun. A 3/4inch sprinkler valve might be hard to find though
dkfa says: Oct 16, 2008. 8:02 PM
Can I use vinyl tubing for the hose connecting for the valve?
LED master22 says: Oct 10, 2008. 11:08 PM
2 thing that come to mind......1 a shotgun is a gun. and the cartridge it shoots isn't a shotgun, but a shotshell.shell equaling a shell casing. and two, that wood is so fragile I could kick through it when I waz 6.
blugyblug in reply to LED master22Oct 11, 2008. 4:28 PM
The ammo isnt a shotshell...It has nothing to do with shotguns. Its just an air hose with glue and duct tape. Its not supposed to be aerodynamic or shoot straight, its just some ammo thats easy to make. And that wood isnt the only thing my gun can shoot through.
l4nd0fc0nfu510n says: Oct 4, 2008. 12:43 PM
Could I use smaller pvc for the barrel to make the ait more compressed and make the gun more powerful? Nice instructable.
blugyblug in reply to l4nd0fc0nfu510nOct 4, 2008. 9:58 PM
Technically it doesnt make it more powerful because you will be shooting smaller ammo. But if you do that the Chamber to Barrel ratio will be stuffed up.
l4nd0fc0nfu510n in reply to blugyblugOct 5, 2008. 8:33 AM
Ohhhh, I see what you mean.
blugyblug in reply to l4nd0fc0nfu510nOct 5, 2008. 6:35 PM
If you really wanna do that, make the chamber smaller as well.
(if you are going to use PVC thats half the size of my barrel, youll have to change the size of your chamber as well. E.G barrel=half size of my barrel. Then your chamber should be 1/2 size of my chamber.
l4nd0fc0nfu510n says: Oct 5, 2008. 8:33 AM
Oh, lol. I must really suck at math or something... Sorry.
blugyblug in reply to l4nd0fc0nfu510nOct 5, 2008. 6:34 PM
AHAHA. Nah it could be \$100 or \$10 depending on where you live.
keags2208 says: Sep 27, 2008. 1:50 AM
good aiming when you were shooting the apples!!!!NEAT GUN!!!!
dkfa says: Sep 25, 2008. 3:22 PM
Can you also add a big pvc container for the air?
blugyblug in reply to dkfaSep 25, 2008. 11:23 PM
Yeah sure! havent you seen all the other Air rifles on the site? I just did a stock because 1. it looks cool 2. it is easier to shoot
dkfa in reply to blugyblugSep 26, 2008. 3:45 PM
isn't the stock also for containg the air?
dkfa says: Sep 25, 2008. 3:23 PM
is there a way to have semi auto on this gun besides pumping?
blugyblug in reply to dkfaSep 25, 2008. 11:25 PM
Semi auto is really really hard on a full size pneumatic spud gun. I wouldnt try semi-auto until youve built like 4 or 5 guns... and not just simple combustions but also hybrids and/or propane injection. Check out spudfiles.com for questions. but dont ask questions WITHOUT SEARCHING. youll get owned by everyone.
HisDivineShadow says: Sep 17, 2008. 11:30 AM
how do you air it up?
blacknaruto18 says: Sep 17, 2008. 11:04 AM
this is a nice idea u have
mokano667 says: Sep 12, 2008. 11:55 AM
how mutch would all this cost?
blugyblug in reply to mokano667Sep 13, 2008. 2:55 AM
Depends on what store you are buying from. ill edit the materials step to show aprox prices
cowscankill says: Sep 7, 2008. 4:35 PM
Can you help me? I bought a different valve, it had a hole in the center of the diaphram. When I pumped the gun, the air pressurized, but when I pressed the trigger, the air came out the blowgun trigger instead of the barrel. So I plugged the diaphram, and now the air comes out the barrel, but the trigger doesn't stop the air from coming out. DOes your diaphram have a hole in it? Does it need to be there? I would like and answer ASAP. Thanks.
blugyblug in reply to cowscankillSep 8, 2008. 12:49 AM
My diaphram has a hole in it, but the hole is blocked by a metal tube coming from the outlet. Does your valve have the metal tube? How much air comes out of the trigger when it is fully pumped and how much comes out from the barrel? The valve works properly when a truckload of air comes from the barrel but a small amount of air comes from the trigger (blowgun valve) The air coming from the trigger is only a tiny bit but you can't hear it because of the air coming out of the barrel.
cowscankill in reply to blugyblugSep 8, 2008. 1:12 PM
Um... It had a metal tube. It couldn't go back in beccause of the tube. I found out that not enough air was goiung into the gun. Thanks anyway ;)
blugyblug in reply to cowscankillSep 9, 2008. 1:49 AM
Wait what? Not enough pumping? So all that text and beautifully constructed paragraphs and complex sentences were a waste? I hate you
cowscankill in reply to blugyblugSep 9, 2008. 3:29 PM
I'm sorry... :(
blugyblug in reply to cowscankillSep 9, 2008. 11:38 PM
NAh its cool. The thing i hate about the internet is that you dont know if someone is been sarcastic or not
Jahoovi says: Aug 22, 2008. 9:31 PM
asome ima build this
Jahoovi in reply to JahooviAug 22, 2008. 9:33 PM
blugyblug in reply to JahooviSep 9, 2008. 1:52 AM
Depends on how much you pump it, how high you are shooting, WHAT you are shooting, wind, environment (land-far, underwater- not far, outer space-keeps going until it hits something)
Jahoovi in reply to blugyblugSep 9, 2008. 7:43 PM
oooo its pump.... o well
wolfy_9005 says: Sep 2, 2008. 7:51 AM
yeh everything is available at bunnings, except chocolate and ice cream :) tire valves are gettable from old bike tubes
bravo730 says: Apr 22, 2008. 9:44 PM
i work @ bunnings western Australia and all the material is available.
blugyblug in reply to bravo730Apr 23, 2008. 2:32 AM
Yeah you can get everything at Bunnings, I dont know about tire valves though
bravo730 in reply to blugyblugApr 23, 2008. 7:25 AM
yeah wheel barrow section with the tire tubes =D , or the air compressor section i know we have them. Also you could special order it in other wise.
blugyblug in reply to bravo730Apr 23, 2008. 9:24 PM
Wow really? I didnt know. I always got my Tire Valves from Kmart Tyre and Auto Service. Basically any place that repairs/replaces car parts. Sometimes they give it to you for free.
bravo730 in reply to blugyblugApr 23, 2008. 10:45 PM
AnarchistAsian in reply to bravo730Jul 1, 2008. 7:35 AM
or you could just steal it (as long as you have enough money to afford it) GO ANARCHY!!!!!!!!!!!!!!!
pyromanizak in reply to AnarchistAsianAug 27, 2008. 3:19 AM
i dont think your understand the concept of true anarchy
AnarchistAsian in reply to pyromanizakAug 27, 2008. 2:41 PM
*sigh* how many times do i have to explain that i'm not talking about REAL anarchy, just what most people think it means...
pyromanizak in reply to AnarchistAsianAug 27, 2008. 6:44 PM
oh so ur talkin about rebellion, in that case YEHHHH ANARCHY!!
AnarchistAsian in reply to pyromanizakAug 29, 2008. 3:07 PM
YEAHHH ANARCHY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! join my anarchy group! (click on my avatar, and look under groups)
starz says: Aug 27, 2008. 1:42 AM
at my place dont have that kind of pvc cement or prima, can i use pvc glue? or what else i can use other than pve cement or prima?
AnarchistAsian in reply to starzAug 29, 2008. 3:05 PM
pvc glue... *hmmmm...* they're the same, use pvc glue and primer.
QwakHed says: Jul 17, 2008. 1:05 PM
Personally, my favorite air powered rifle is an old paintball gun (36 cal) hooked up to a scuba tank and loaded with blowdarts (also 36 cal) and a 1 piece 36 inch blowgun barrel w/quivers attached to the front of the PBG carcass. To load you pop off the barrel, pop a dart in, pop back in, aim and blow. Flies for about 300 feet. About 100 shots from a scuba tank.
blugyblug in reply to QwakHedJul 24, 2008. 1:04 AM
Hooked up to a scuba tank? ONLY 300FEET? DO YOU KNOW HOW MUCH POTENTIAL YOU HAVE FROM A SCUBA TANK? WITH A SCUBA TANK, CHARGED AT 3000PSI THE RECOIL FOR AIR ALONE THROWS YOU BACKWARDS. AIR! RECOIL FROM AIR! Discharging an entire scuba tank at once will make your bullets go at about Mach 15 and acceleration will be like 4000Gs
pyromanizak in reply to blugyblugAug 27, 2008. 3:22 AM
the gun will shatter into 7.3758 billion pieces, most of them into your face
blugyblug in reply to pyromanizakAug 27, 2008. 11:54 PM
Lol no it wont. It wont shatter, steel is strong enough to hold 3000psi in that.
LemonSlice says: Aug 22, 2008. 5:15 PM
that thing is nice!! i tried to build one out of thin 1/2 inch copper pipe... didn't go very well. I like your design and i'm going to try it. 4.5 stars!
nibbler125 says: Aug 20, 2008. 6:41 PM
i had one like his only with a 2 leter bottle .... dont use 2 leter bottles it blew up on me and i had a welt the size of a 2 leter bottle and it knocked the wind outta me
afrodude99 says: Aug 5, 2008. 6:33 AM
Good work keep it up

do you like mine ? Copper cannon
brian250 says: Jul 6, 2008. 3:07 AM
yep real lucky you didnt have one come back at you.if you have to get that close just whack the sod with the barrel that hurts.next make it a rocket launcher with a barrel big enough for a film cannister.a teaspoon of bicarb and ballbearing seal halfway with bee wax.fill with vinegar and put lid on.make sure the lid faces the front.fire it and on impact the ballbearing travels thru the wax and a chemical reaction.BOOM add flights if you want accuracy.make a mortar if you want a lob shot.have fun its safer than firing batteries and great team game when food color is added.
blugyblug in reply to brian250Jul 6, 2008. 4:37 PM
actually... thats AN AWESOME IDEA!!! Make one of those "film canister pepper bombs" (theres an instructable somewhere) and when you shoot it, the movement will shake it and itll explode
brian250 in reply to blugyblugJul 7, 2008. 12:33 AM
hi blugyblug its not just an idea it works so dont shake the mixture the ballbearing does that for you in flight and just one drop of dye on your opponent and you got a hit.the projectile in flight holds the ballbearing to the rear then the sudden stop gets it happening.have fun and think also -sabot- and balloons with a twist in them to separate components,thats just another devilish thing for you to think about and invent for a mortar.
blugyblug says: Jul 6, 2008. 4:42 PM
Guys, i changed the scope to a finderscope because the binoculars broke =(
The scope mount is waay different as well. Its got two little stands.
A finderscope is kinda like a mini-telescope and you use it to "find" things that you want to look at. Once you "find"it (gee i wonder why its called a finderscope) you look through the main telescope.
bob the builder #1 says: Jul 24, 2008. 12:50 PM
honestley you shouldn't be standing that close to the target pump it up to 80 psi and stand back a ways should do the sam dammage.
Doomi says: Jul 21, 2008. 11:01 PM
ummm... could you please give me the measurements in inches? my grampa is stubborn and won't buy them unless it's in inches..... PLEASE?!?!?
blugyblug in reply to DoomiJul 24, 2008. 1:01 AM
I put them in both..
blugyblug in reply to blugyblugJul 24, 2008. 1:01 AM
Search google for a Metric-Imperial converter or Centimetres-Inches converter
gunKing2281 says: Jul 14, 2008. 10:04 PM
How do you Load this? just slide down pipe or what?
napzter says: Jul 14, 2008. 2:46 PM
This is awesome. How much did all the materials cost? Also, the first thing I ever built was a flamethrower.
jhnbasketball says: Jun 26, 2008. 1:49 PM
how did u make the shotgun shells
they arent actually shotgun shells... Just normal things that you shoot, i just loaded like 5 of them inside... Not really a "proper"shot gun.
forget my question i see you already said how
AnarchistAsian says: Jul 4, 2008. 12:43 AM
in the video you said 6 shots, what do you mean?, sprinkler valves release all pressure at once, right? P.S. today is my birthday!!!!!!!!!!!!! i was born on a day with fire works, maybe that's why i like pyro...
TETRANITRATE#2 says: May 16, 2008. 8:15 PM
thats mean, telling people to shoot a barrel full of water standing up straight. the recoil with the barrel full of water is pretty strong and can knock you off your feet
AnarchistAsian in reply to TETRANITRATE#2Jul 1, 2008. 7:33 AM
man, i hate you now, because i like hurting myself, and now i know not to do it... at least i think i know not too... (if you've been reading my comments, you'll probley notice i like trailing off)...
ekulmeekul in reply to TETRANITRATE#2May 22, 2008. 11:42 PM
oh yea just go and tell everybody!
fidgety2 says: May 14, 2008. 6:53 AM
hey I have a idea I have a old pressure washer wand and I was thinking oh my gosh that would be the best spud cannon on earth but would it really work as well and as safely with air as with water and if so how do you hook it up to a air compressor because all my fittings are either too large or too small thanks, fidgety
blugyblug in reply to fidgety2May 15, 2008. 11:42 PM
It sounds fine but I don't know about the air compressor thing. There should be a rating on it, just dont go past that rating but if it is made of steel I doubt there is an air compressor on Earth under \$300 that can go past 2000psi. Check out the flow of it. I dont think Pressure Washers have good flow. You have to be able to release ALL the air inside the tank at the same time. You could mod it and shove a ball valve or something instead of the other valve though, that would be awesome if you did it! I have no idea how to do that though. Do some research and check out the valve bit. If the fittings on the valve area are common fittings (Bushing/Nipple etc) then it could be easy. But i have a feeling that the valve is welded or glued onto the pressure washer. If so you probably cant do anything about it.
AnarchistAsian in reply to blugyblugJul 1, 2008. 7:28 AM
teehee, nipplefitting... nice instructable
secretspy1 in reply to blugyblugMay 25, 2008. 1:41 PM
man, your smart for 12. im in AP classes and im 12 also, and i dont understand most of this.
grundisimo in reply to secretspy1May 28, 2008. 7:01 AM
i am 12 also!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
grundisimo in reply to grundisimoMay 28, 2008. 7:01 AM
awesome
AnarchistAsian in reply to grundisimoJul 1, 2008. 7:30 AM
I'll be 12 in 3 days...
grundisimo in reply to AnarchistAsianJul 3, 2008. 6:59 PM
happy birthday to you, happy birthday to you, happy birthday AnarchistAsian, happy birthday to you
AnarchistAsian in reply to grundisimoJul 3, 2008. 11:04 PM
THANK YOU GRUNDISIMO, i'm bored, cuz i'm stuck in a hotel on my birthday(five star hotel by the way)and when i get back to the u.s.(i'm in china till the 22nd of july) me and my dad will make a bunch of airguns like this.
grundisimo in reply to AnarchistAsianJul 4, 2008. 8:23 AM
AnarchistAsian in reply to grundisimoJul 4, 2008. 8:26 AM
i guess i am...
grundisimo in reply to AnarchistAsianJul 5, 2008. 9:13 AM
yes you are by the way i tried opening internet explorer yesterday sadly it did not work but the instructable was great though
blugyblug in reply to secretspy1May 27, 2008. 1:31 AM
Lol, its kinda simple one you understand.
Podge says: Jun 30, 2008. 1:12 PM
really nice gun,simple and effective. thanks for metric figures, inches are annoying. im thinking of making a gun similar to this that fires .177 lead pellets and is powered by CO2 canister. hopefully it wont explode in my face. if i ever get off my arse i'll post my efforts.
JaniePatricia says: Jun 28, 2008. 7:47 PM
this is awesome
noskid7 says: Jun 28, 2008. 6:25 PM
looks like a covenant carbine, just paint it purple lol
finnster says: Jun 26, 2008. 12:51 PM
actually, over-under means double barrel with one barrel on top and one on the bottom
blugyblug in reply to finnsterJun 27, 2008. 12:24 AM
In spud gunning over-under means the barrel is on top of the chamber, or the other way around.
Ora says: Jun 22, 2008. 8:37 AM
Quite a sleek gun you've got there, and a very nice description of the build process, but I'm curious as to whether or not you've painted it yet.
blugyblug in reply to OraJun 23, 2008. 1:31 AM
Lol obviously i havent painted it, but im going to. Im going to make a new step on paintjobs and make the preview picture different.
Im going to paint Tiger Stripes on it =D (I got it from SpudFiles). I was thinking about doing a flame paintjob but everyone does that (its harder too). I wanted to go for something unique.
Ora in reply to blugyblugJun 23, 2008. 2:31 AM
Sounds awesome, I look forward to seeing it painted!
scamp says: Jun 3, 2008. 2:09 AM
wow ur 1st instruable and ur 12 making guns lol awsom thanks for doing it in mm not inchs
blugyblug in reply to scampJun 23, 2008. 1:28 AM
Lol yeah, i live in Australia and we do the metric system, but alot of ppl are from the USA and they use inches and feet
Dr. Explosion in reply to scampJun 21, 2008. 7:15 PM
The metric system is so much easier..... too bad the US hasn't been able to switch to it :-)
SIMONYAK says: Jun 21, 2008. 10:42 PM
lol i made one with my dad and we have been shootign it threw cardboard and cokecans it absoloutly destroys em. i have PN 12 asweel and i pump mine to the 90-100 psi range good gun thx little man. =]
jman109 says: Jun 21, 2008. 12:12 PM
cooooooool!!!!!!!!!!!!!!!!!!!!! but wat duz it shoot?
Dr. Explosion in reply to jman109Jun 21, 2008. 7:13 PM
It kinda tells u if u read it
whitish says: Jun 12, 2008. 2:15 PM
i have been looking for this all over the comments and instructible and cannot find an answer. what is the maximum psi or at least suggested psi on this gun? i know on the video you said 40 but that seems sort of low, is that really what you got all those shots off on?
Dr. Explosion in reply to whitishJun 17, 2008. 11:17 AM
Don't pump it up too much though, especially when its cold out (that makes it brittle and less safe). Also 40 doesn't seem like much but try getting hit by that and you'll change ur mind.
blugyblug in reply to Dr. ExplosionJun 18, 2008. 1:30 AM
O yeah true, but in Australia temperatures never go below 0 Celcius. Your not supposed to use it below 0 degrees C, but that doesnt mean you can use it at 1 degree C. It gets weaker the colder it is, and also weaker the HOTTER it is... I held my barrel infront of my fireplace and it melted.. i could actually move it into different shapes with just 2 fingers.
blugyblug in reply to whitishJun 12, 2008. 11:31 PM
Lol. Depends on the type of pipe you are using, the stronger the pipe, the more pressure. You have to look for a pressure rating on the pipe. If you live in the UK or Australia, it will say PN Multiply the number by 14.5 and that is your answer. In the US it just says PSI @ 73F. Thats pretty straightforward. My gun is PN12, that can with stand about 175psi. My pump is screwed so i can only pump to about 40psi, but once i get a new one ill pump to like 100psi everytime.
whitish in reply to blugyblugJun 15, 2008. 11:59 AM
mmkay thanks
Dr. Explosion says: Jun 17, 2008. 11:14 AM
This gun is really sweet and i realize how much power it has but you should have shot at longer ranges in the video if you want to show its use as a "sniper" rifle. Cool music too.
SIMONYAK says: Jun 6, 2008. 6:53 PM
wow! nice im 14 and i still strugle to get how it works thx kid i'll have an atempt to make one =)
tron1o7 says: May 12, 2008. 10:50 AM
after i made this and showed my dad how powerful it was he said that once schools out i can use it to shoot @ some squirrels and birds during the summer when they try to eat stuff from his garden. if i can show him the body then i get \$5 each lol...but later he said i might have to end up payign for the potatos and hair spray =(
blugyblug in reply to tron1o7May 13, 2008. 11:14 PM
Hair Spray? You dont need hair spray for this. You only need it for combustion guns. BTW dont use hair spray anyway, unless its for your hair or for a flame thrower. It gums up the chamber with a combustion launcher and the electrodes wont spark.
tron1o7 in reply to tron1o7May 12, 2008. 10:52 AM
i also put a scope from an old bb gun on the gun instead of binocules. it isnt the best cause the scope cost \$15 so its a piece of junk but its fun to have it on even if it doesnt do much lol
JimJong says: Apr 19, 2008. 9:18 PM
hey thanks for posting this instructable its great but i have a suggestion for the scope. On the "scope" "binocular half" you could try to draw a crosshair on the lens with a sharpie for a better aim.
entoalexa says: Apr 16, 2008. 1:26 AM
omg copied my idea!!!! i told u about this plan!!!! and now u get all the credit!!! lol!!!
blugyblug in reply to entoalexaApr 16, 2008. 3:11 AM
i don't even know you anyway
blugyblug in reply to entoalexaApr 16, 2008. 1:28 AM
and many people use this design, its just an over under.
dmp2112 says: Apr 15, 2008. 3:32 PM
Hey, pretty cool! Thatt's very nice. But, how you do your trigger system ? It's just make a hole on the sprinkler valve and connect to the blowgun?? How it works? When you pull the trigger, how the valve release the air?
blugyblug in reply to dmp2112Apr 15, 2008. 4:06 PM
Yeah, theres a hole in the sprinkler valve. A hose barb screws in that hole and the air hose goes on the barb. Theres another barb on the other end which screws onto the blowgun. The blowgun vents the sprinkler valve via the hose. It just replaces the solenoid.