Pneumatic Cannons

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SpudFiles Potato Gun Commercial

Last post by quinn whitsitt
Posted in Combustion Cannons
Replies: 15
by PCGUY » Tue Oct 29, 2013 10:54 pm » in Combustion Cannons
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I've been wanting to get in some spud shooting action this fall before the weather got cold. I know it's been a while since I filmed anything for...

Last post

thank you for creating this website is there anything i can do to help
15 Replies

909149 Views

Last post by quinn whitsitt
Fri Feb 09, 2024 2:38 pm
Directional Control Valves (3way valves and stuff like that)

Last post by jpalf1
Replies: 86
by POLAND_SPUD » Sun Mar 07, 2010 1:12 am
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Directional Control Valves, commonly refereed to as 3,4,5 etc. valves or spool/poppet valves etc., can be very useful for spuders.
They can be used...

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very,useful info for a beginner such as myself.The links are great as well.Thankyou.(you won't believe this but as i was reading,my fridge comp...
86 Replies

445936 Views

Last post by jpalf1
Sat Apr 13, 2013 10:53 am
Sprinkler Valve Troubleshooting Guide

Last post by quinn whitsitt
Replies: 64
by noname » Sat Jun 16, 2007 12:15 am
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Sprinkler Valve Troubleshooting

This is a guide to sprinkler valve problems. Before creating a new topic to ask questions on why your valve isn't...

Last post

great job everyone
64 Replies

398361 Views

Last post by quinn whitsitt
Thu Feb 22, 2024 2:18 pm
Piston Valves Explained Visually

Last post by pavina
Replies: 178
by clide » Mon May 14, 2007 11:21 pm
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I had this posted on Spudtech, but I am reposting it here to hopefully help some people out and allow for discussions/updates.

Well I made this...

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Thanks for sharing this! It might also be useful to mention how friction and maintenance can affect performance over time. Looking forward to more...
178 Replies

621070 Views

Last post by pavina
Fri Sep 27, 2024 4:05 am
"How Much CO2 do I need?"

Last post by choke
Replies: 32
by BC Pneumatics » Sun Apr 01, 2007 9:52 pm
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For all those people out there looking for a rough idea of how much CO2 they will need for a chamber of any given size-
Just multiply the volume of...

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Great piece of software :) I've been kicking numbers round my head for a while now, and wondered if someone here could confirm. I'm filling a 1.5 dia...
32 Replies

329355 Views

Last post by choke
Thu Jul 04, 2013 2:38 pm
Valve Cutaways

Last post by jhalek90
Replies: 8
by PCGUY » Sat Feb 26, 2005 9:10 pm

First post

VALVE CUTAWAY

Provided By - Longshot

These are some pictures of some of the most popular valves used on spud cannons. Only difference is, these...

Last post

Can someone fix the picture links??

8 Replies

78932 Views

Last post by jhalek90
Wed Oct 07, 2009 2:13 pm

Topics

QEV settings in GGDT?

Last post by whoa044
Replies: 2
by whoa044 » Thu Jun 27, 2013 2:32 am

First post

What should be entered for the settings for valve data in GGDT with a QEV like this one?

Last post

Thank you!

2 Replies

1901 Views

Last post by whoa044
Thu Jun 27, 2013 7:37 pm
pneumatic locksmithing?

Last post by jackssmirkingrevenge
Replies: 19
by jackssmirkingrevenge » Sun Jun 23, 2013 1:12 pm
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My dear old mother has managed to lock a door with the key in the inside. Using a spare key from the outside isn't working, nor is trying to knock...

Last post

We locked our car keys in our car the other week. Pain in the rear getting them out again.

I had to break into a car once when my colleague managed...
19 Replies

10490 Views

Last post by jackssmirkingrevenge
Thu Jun 27, 2013 2:31 am
Air tank alternative: fiberglass-reinforced soda bottles

Last post by dart guy
Replies: 55
by aEx155 » Wed Jul 27, 2011 2:25 am
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I have seen some people use plastic bottles as air tanks for pneumatic chambers, but they often switch to a PVC or metal tank because they want more...

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i have an idea
do you think that if you fiberglass a thin pvc pipe it would make it hold more psi ? if so i think i would try that for my l96 plans...
55 Replies

27065 Views

Last post by dart guy
Tue Jun 25, 2013 10:36 pm
Anarchy- semi auto QEV M16

Last post by anarchy08
Replies: 30
by anarchy08 » Sun Sep 04, 2011 7:34 am
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Hello All,
new to posting on the forums here, but have been skulking around in the background for a while now.
I'm an Aussie,from down under here...

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Guess ill have to upload a video then.
30 Replies

23345 Views

Last post by anarchy08
Tue Jun 25, 2013 2:56 am
Fibreglass air chambers

Last post by jackssmirkingrevenge
Replies: 1
by Major Collins » Mon Jun 24, 2013 11:43 am

Has anyone made any fibreglass air chambers or reinforced pvc ones with fibreglass? it seems very ideal

1 Replies

1022 Views

Last post by jackssmirkingrevenge
Mon Jun 24, 2013 2:55 pm
where can you buy threaded schrader valves?

Last post by Blitz
Replies: 6
by daedricmoose » Mon Jun 17, 2013 8:03 pm

First post

i've heard that they're common, but have not seen any around, i would prefer not to buy online, but if worse comes to worse... i've heard that they...

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That could also be an option I guess. Personally, I'd just buy 'em premade in a store, if you have to buy components to do this anyway.

6 Replies

11620 Views

Last post by Blitz
Mon Jun 24, 2013 3:26 am
My second ever airgun :) - QEV, Stock, Scope

Last post by dart guy
Replies: 16
by DaxSF » Sat Oct 29, 2011 10:55 am
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Hi guys,
After some help I got on this forum I finally managed to finish my gun but there is only 1 thing left which I need your help with - the...

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i like your build and with minimal tools to it is great
16 Replies

9383 Views

Last post by dart guy
Sun Jun 23, 2013 5:36 am
Eclipse at Fort Bragg

Last post by jrrdw
Replies: 6
by Solar » Fri Jun 21, 2013 9:18 pm

6 Replies

3231 Views

Last post by jrrdw
Sat Jun 22, 2013 5:14 pm
QEV semi question

Last post by jackssmirkingrevenge
Replies: 1
by tigerblues28 » Wed Jun 19, 2013 12:49 pm

First post

Greetings,
I made a qev with a really good sealing face (3 layers of bike tire rubber) and I'm using a return spring. The QEV is piloted by a...

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If you have a large enough chamber, it will give you multiple shots if you press and release the blowgun trigger quickly enough for each shot.

1 Replies

1034 Views

Last post by jackssmirkingrevenge
Wed Jun 19, 2013 11:29 pm
Simple copper coax

Last post by whoa044
Replies: 11
by whoa044 » Sat Jun 15, 2013 2:39 pm

First post

It's a fairly light gun, compared to the barrel sealer I have (in the background of the second pic). It's not as powerful though, so it's just for...

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Ironically this gun's valve has the best seal out of any other one I've made.

I think I'm just a little demanding with power haha

11 Replies

6787 Views

Last post by whoa044
Wed Jun 19, 2013 11:58 am
Bolt action / mag feed query

Last post by aussieben
Replies: 7
by aussieben » Mon Jun 17, 2013 7:21 am

First post

Hey guys,

I've attached a rough plan of how I'm planning to incorporate a semi-auto, bolt action-style mag feed into my rifle I'm currently...

Last post

sorry about the lack of pictures explaining but,
I use a sliding bolt to simply interrupt the flow of ammo going into the chamber(spring fed).

that...

7 Replies

2829 Views

Last post by aussieben
Wed Jun 19, 2013 4:07 am
2mm Semi

Last post by dart guy
Replies: 9
by Carlman » Wed Apr 22, 2009 2:26 am

First post

Gday guys,

I have been using a 1/4 qev coupled with a needle valve and blowgun for semi auto fire for quite a while now (well when i say semi i mean...

Last post

it looks like an uzi but the feed tube might have to go in a different place

9 Replies

5152 Views

Last post by dart guy
Tue Jun 18, 2013 8:10 am
Girandoni derived idea

Last post by iloveairguns
Replies: 9
by iloveairguns » Wed Jun 05, 2013 2:51 am

First post

Ok long time ive been posting anything, i looked at one topic about a old air rifle that almost exactly worked the same way as the girandoni, then i...

Last post

haha i laughed quite bad on your drawing JSR :laughing5:

9 Replies

5540 Views

Last post by iloveairguns
Tue Jun 18, 2013 4:19 am
want to build but plans suck

Last post by jrrdw
Replies: 8
by dart guy » Tue Jun 11, 2013 2:56 pm

First post

i cant ever finish plans because of inexperience but i would like help trying to fit plans to these types of guns

i would like some help,...

Last post

That's good to hear, I'm looking forward to seeing it.

8 Replies

5547 Views

Last post by jrrdw
Mon Jun 17, 2013 5:48 pm
Got bbs into australia :D

Last post by anarchy08
Replies: 15
by LovableAirGuns » Sun Aug 28, 2011 3:32 am
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Hey everyone a friend of mine just got a got a total of 17000 bbs in to Adelaide Australia and im so stoked and so is my friend :D
We got 9000 8mm...

Last post

haha actually lost it laughing at this thread :D, good to seee your still on here lovable airguns- picked myself up one of those bb guns from the...
15 Replies

6128 Views

Last post by anarchy08
Sun Jun 16, 2013 4:23 am
Silent System( now broken by dieseling!)

Last post by jackssmirkingrevenge
Replies: 44
by Brian the brain » Wed Nov 25, 2009 5:21 pm
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Just something I have been wanting to try for a long time.

I tried this system before on my push botton valve experiment.It needed more flow..

Take...

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I'm waiting a silenced version of Helsing from you now Jack :D

Hehe not sure if I want to make a pneumatic repeater or a single shot hybrid in this...
44 Replies

19054 Views

Last post by jackssmirkingrevenge
Sun Jun 16, 2013 12:17 am
Need quotes for golf tee gun

Last post by jrrdw
Replies: 7
by spicynugget » Mon Jun 10, 2013 11:21 pm

First post

Looking to buy a golf tee- firing gun for my brother to drive a wooden golf tee into the grass. I suppose the barrel could go low to the ground, but...

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i think that this would go into the non related discussion because it would probably be best to make a barell with a ram rod to pick how deep it goes...

7 Replies

2143 Views

Last post by jrrdw
Wed Jun 12, 2013 4:31 pm
HPA Golf ball cannon?

Last post by hawktalk
Replies: 17
by jonesy42 » Sat Oct 06, 2012 5:54 am
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Hey guys, I was down at bunnings today (h/ware shop), and i had an idea of
making up a quick, simple ball valve HPA golf ball cannon with a...

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i got a plastic bottle to 250psi then my bottle slid off my rig but those 3lt containers aren't designed for high pressures i suggest a fire...
17 Replies

10446 Views

Last post by hawktalk
Wed Jun 12, 2013 1:55 pm
more chamber volume = better?

Last post by jackssmirkingrevenge
Replies: 3
by brettdotcom14 » Mon Jun 10, 2013 7:58 pm

First post

If the chamber is bigger and you have a longer barrel will it shoot faster than a smaller chamber with smaller barrel?

Im trying to figure out how...

Last post

I would recommend downloading GGDT and playing around with it.

3 Replies

1983 Views

Last post by jackssmirkingrevenge
Mon Jun 10, 2013 11:27 pm
Remote-Fired Air Gun

Last post by Technician1002
Replies: 5
by Lockednloaded » Mon Jun 10, 2013 1:36 pm

First post

I ordered one of those cheap 12v remote circuits off of amazon a while ago (~12$ shipped IIRC) and just got around to trying it out.

These things...

Last post

The magnetic field in the coil is directly related to current. Since current on 12V DC is higher than on 24VAC, it is not slower.

I found an old...

5 Replies

3075 Views

Last post by Technician1002
Mon Jun 10, 2013 6:31 pm
permanent sabot/piston in barrel

Last post by dart guy
Replies: 18
by Kilash » Tue May 28, 2013 10:50 am
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I am in the process of testing the feasibility of a permanent sabot/ramming piston which does not exit the muzzle after firing, but instead is...

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thanks for that i thought that it would be like if you push gas through a cone it will consentrateit alitle bit more quickly
18 Replies

9588 Views

Last post by dart guy
Mon Jun 10, 2013 1:02 pm
And a full auto version

Last post by Brian the brain
Replies: 28
by farcticox1 » Sun Mar 31, 2013 1:08 pm
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This is what the full auto looked like when it was first assembled for testing. There is a small magnet on the bottom of the T fitting to keep the...

Last post

You could wrap the ammo tube around to make it more compact.
It'll work just as well.

...and add a T and removable endcap for filling.
28 Replies

14870 Views

Last post by Brian the brain
Sun Jun 09, 2013 8:09 am
Help a newbie out with the Instructables 25 mm air rifle?

Last post by jackssmirkingrevenge
Replies: 1
by picklepie159 » Sat Jun 08, 2013 9:38 pm

First post

Hello everyone!
School's out and I've been thinking about building a spudgun for quite a while now. However, I have a couple of newbie questions that...

Last post

If you're charging it with a track pump, just buy this directly instead of the quick connect:

Also, would this sprinkler be suitable for the...

1 Replies

857 Views

Last post by jackssmirkingrevenge
Sun Jun 09, 2013 4:04 am
I need help

Last post by jackssmirkingrevenge
Replies: 21
by tamelcraken » Mon Jun 03, 2013 5:49 pm
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good would make me a sniper rifle but I was talking to maklaw that three months ago and when I had money to conprarme the parts that made me lack is...

Last post

JSR may be the most interesting man in the world..
21 Replies

6096 Views

Last post by jackssmirkingrevenge
Sun Jun 09, 2013 3:46 am
Sniper

Last post by sagthegreat
Replies: 28
by farcticox1 » Sat Apr 27, 2013 3:48 pm
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Just put this together

Removable/adjustable stock not finished and no sights yet. Going to get some telescopics.

Single shot with reload,...

Last post

Instead of a mag, make it have a oring, this will increase the pressure behind each bb. Also mak eit bolt action for feeding each bb
28 Replies

13101 Views

Last post by sagthegreat
Sat Jun 08, 2013 7:26 pm

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