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

1205114 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...

Last post

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

605973 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...

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great job everyone
64 Replies

858656 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

1021875 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

393070 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

100263 Views

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

Topics

Rags HEAL where is the topic?

Last post by SpudFarm
Replies: 1
by Sticky_Tape » Thu Sep 18, 2008 2:52 pm

First post

I looked searched on the search page and I can't find it can anybody help out?

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yes i does lurk around

1 Replies

614 Views

Last post by SpudFarm
Thu Sep 18, 2008 2:56 pm
Schrader question

Last post by daxspudder
Replies: 24
by daxspudder » Sat Aug 30, 2008 6:14 pm
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Okay, I'm taking on the challenge of building a piston valve for the first time. I'm using wood, with a neoprene washer, but my real problem is...

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the piston weighs very little, seals very snuggly, and opens half the diameter of the T, which is more than enough for effective venting aka firing...
24 Replies

8890 Views

Last post by daxspudder
Thu Sep 18, 2008 1:03 pm
Paintball Sniper's Smoothbore

Last post by sv490665
Replies: 4
by potatoflinger » Wed Sep 17, 2008 6:55 pm

First post

Just thought I would be politically correct with the title. :lol:

This is my latest project, it is a launcher designed to shoot paintballs at 450...

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Nice i like it. Just a thought for you and anyone outthere building a gun with bolt action, i'm working on one right now and i found at kragen auto...

4 Replies

4100 Views

Last post by sv490665
Thu Sep 18, 2008 10:59 am
Another way to mod a sprinkler valve?

Last post by The Engineer
Replies: 6
by The Engineer » Wed Sep 17, 2008 5:03 pm

First post

Instead of drilling through the top cover of the valve, could I drill through where the solenoid would usually go? This way I wouldn't need epoxy or...

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i'm using my cannon (almost complete, - the sprinkler valve) for science fair, and i just wanted to know if there was any other way, for the sake of...

6 Replies

1580 Views

Last post by The Engineer
Wed Sep 17, 2008 7:58 pm
Equilization hole/Coaxial.

Last post by psycix
Replies: 9
by Demon » Mon Sep 15, 2008 5:09 pm

First post

I just heard then the coaxial piston needs an equilization hole???

My coaxial is going to be sealed soon and i wanna know if i need an equalization...

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Some answers to questions in this thread:
-You wont need a spring if you fill from the pilot.
-Yes, 3 feet would be more then enough... :lol:
-Your...

9 Replies

1750 Views

Last post by psycix
Wed Sep 17, 2008 4:49 pm
how far the piston must open?

Last post by far_cry
Replies: 13
by far_cry » Tue Sep 16, 2008 5:46 pm

First post

i am almost finish my co-axial rifle
the barrel is 10mm (outside) and a 8 mm bore, the chamber is 3/4 steel pipe he had 2cm diameter inside.
how much...

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ok i will try thanks

13 Replies

5741 Views

Last post by far_cry
Wed Sep 17, 2008 4:00 pm
Piston bounce?

Last post by clide
Replies: 6
by ALIHISGREAT » Wed Sep 17, 2008 1:38 am

First post

well i have just been thinking of piston bounce and i was wondering if it can be caused by the piston hitting a hard surface and bouncing back, or is...

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If you model your launcher using ggdt, you can see the effect of pilot volume/valve size by checking the valve position.

Decrease the pilot valve...

6 Replies

2609 Views

Last post by clide
Wed Sep 17, 2008 3:13 pm
Steam cannon idea

Last post by jimmy101
Replies: 17
by jon_89 » Mon Sep 15, 2008 4:24 pm
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What if you used a glow plug to heat the water. Would it get hot enough? The only problem I could see is sealing the plug in a pipe ( steel of...

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Yeah I dont plan on going very high but higher than my pnuematic cannons (120 psi).
You have to remember that the pressure you get is really only...
17 Replies

3676 Views

Last post by jimmy101
Wed Sep 17, 2008 10:32 am
Help: Can't get my 4" piston to seal against 3" ba

Last post by blind909
Replies: 13
by JDP12 » Tue Sep 16, 2008 7:08 am

First post

In my t-shirt gun, i have a barrel sealing piston with a 3 inch barrel. The end of the barrel is square, but the piston doesn't seal that great....

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Another thing you could try is the latex swimming caps. I used that as a sealing face on my Piston Cannon. Use about 5-7 layers. It seals EXCELENTLY.

13 Replies

3580 Views

Last post by blind909
Tue Sep 16, 2008 10:51 pm
a few questions.

Last post by jrrdw
Replies: 4
by dilweed » Tue Sep 16, 2008 12:39 pm

First post

1.) Will helium give better muzzle velocities?

2.) Can an airgun only have so much power determind by the speed of the valve opening.

3.)can a ball...

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There are links to the GGDT in the Wiki and here in Spudfiles.

4 Replies

7011 Views

Last post by jrrdw
Tue Sep 16, 2008 4:01 pm
New Paintball LAW

Last post by al-xg
Replies: 5
by peeeto » Sat Aug 30, 2008 12:20 am

First post

...will have to get this done before the West Point Fall Scenario Game, comin up quick ~Sept 20. i'm getting an ASCO 3/4 for the final build :D...

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Is the grip actualy working for the piloting or is it disguising a regular valve ?

I was tempted, quite a few times, to use the grip from my Smart...

5 Replies

4795 Views

Last post by al-xg
Tue Sep 16, 2008 7:41 am
4" Burst Discs

Last post by JDP12
Replies: 19
by MaxuS the 2nd » Sun Sep 14, 2008 3:37 pm
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What on Earth would I use? :?

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perhaps thin PVC- such as SDR 21???
19 Replies

5322 Views

Last post by JDP12
Tue Sep 16, 2008 7:12 am
Concealed "Caddyshacker" Pneumatic (Design Posted)

Last post by Not_Again
Replies: 10
by Not_Again » Sun Sep 14, 2008 9:02 pm

First post

This might be a little farfetched, but with some time do you think it is within reason to try and develop a compact golf ball gun which:

1. Scare...

Last post

Here is the design I drew up today (pending as it is currently as PDF)

The only design flaw I think I might run into is deals with the overlapping...

10 Replies

3221 Views

Last post by Not_Again
Mon Sep 15, 2008 8:06 pm
My slightly ergonomic Co-axial piston cannon!

Last post by Kash munni
Replies: 3
by Kash munni » Sat Sep 13, 2008 12:30 pm

First post

This is my newest cannon. It's not the cleanest thing in the world, but I only had to buy 2 fittings for it, everything else i had laying around...

Last post

Got it. Thanks guys!

Sorry it's taking so long on the damage... I need to find a good, hard hitting ammo.

3 Replies

2949 Views

Last post by Kash munni
Mon Sep 15, 2008 3:11 pm
Air compresser schraeder?

Last post by jimmy101
Replies: 15
by Demon » Sun Sep 14, 2008 1:49 pm
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I am planning to buy a small lovely air compressor:

and then i tough: all my spudguns are with a schrader valve.

Do i need any adaptators or i...

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You can also buy the lock-on type fill valves.

search air hose chucks
scroll down to part #s 6146A21 (standard, 1/4 barb) or 6140A61 (locking, 1/4...
15 Replies

3445 Views

Last post by jimmy101
Mon Sep 15, 2008 11:23 am
Lauren (revised) V2

Last post by nivekatoz
Replies: 23
by dapallox1 » Sun Oct 28, 2007 8:05 pm
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I finally finished the new version of Lauren. This time around I used all pressure rated parts, and a piston valve (which will be piloted later by a...

Last post

You can buy rubber roof membrain or pond liner at any home center. Menards, Fleetfarm, etc..You have to buy it per foot. Its cheap and works good as...
23 Replies

20988 Views

Last post by nivekatoz
Mon Sep 15, 2008 11:19 am
Barrel-Sealing Piston Problem!

Last post by mark.f
Replies: 6
by spudkilla224 » Sun Sep 14, 2008 8:42 pm

First post

I am having troubles with my barrel-sealing cannon. for the piston i use a 1 1/4 coupling. with a 2 fender washer. with a 1/8 thick rubber washer...

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2 washer > 1.5 barrel.

That seems to me to be the problem, in which case, a seal of metal against hand-cut PVC plastic ain't going to be too great....

6 Replies

2654 Views

Last post by mark.f
Mon Sep 15, 2008 8:44 am
can any body explain to me what....

Last post by Hotwired
Replies: 11
by far_cry » Sun Sep 14, 2008 11:32 am

First post

the meaning of this option in ggdt
in the red square
i have been in the ggdt site but i did not understand what they mean by seat diam
and why if i...

Last post

In a barrel sealer inside a tee, you could construct it in such a way, that the air only needs a 90 degree turn.

Mmm, an L shaped cannon :wink:

11 Replies

3910 Views

Last post by Hotwired
Mon Sep 15, 2008 8:20 am
MY Musket

Last post by coolhippy80
Replies: 9
by dilweed » Tue Aug 26, 2008 2:20 pm

First post

Sorry for the lack of pictures(I will put some soon i hope.) My gun basically has a carved stock and looks like a musket. I have scrapped the piston...

Last post

would LOVE to see some pictures of this, mate...
I am making the exact same thing myself now...

9 Replies

3392 Views

Last post by coolhippy80
Mon Sep 15, 2008 7:23 am
Hammer actuated burst disk

Last post by grumpy
Replies: 11
by Demon » Sun Sep 14, 2008 4:28 pm

First post

I just thinked of that:

Why no make a sort of sharp hammer that will break the burst disk?

The hammer will be actuated by an sort of spring powered...

Last post

@Demon,
you mean something like this.

11 Replies

4077 Views

Last post by grumpy
Mon Sep 15, 2008 7:14 am
Storing my cannons/projects in the attic

Last post by Hotwired
Replies: 18
by stevenarroyo » Tue Sep 09, 2008 3:04 pm
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I'll be leaving soon to study(out of state). and i can't take any of my air cannons, and i don't want to leave it the garage when am not there....

Last post

I don't believe that would be the case MTT.

Cement is the wrong word really it ought to just be called PVC solvent.

After the solvent softens the...
18 Replies

5801 Views

Last post by Hotwired
Mon Sep 15, 2008 6:58 am
MIKE revisited

Last post by VH_man
Replies: 17
by VH_man » Sun Sep 14, 2008 8:32 am
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Well, after the initial construction of MIKE, I got bored with the fact that it could only be fired from the hip. Also, i was getting tired of having...

Last post

oh yeaaa.... you made Copperhead....

I just installed a Saftey on my gun. However, its too late to test it.........
17 Replies

7317 Views

Last post by VH_man
Sun Sep 14, 2008 7:08 pm
Inline Piston Valve

Last post by VH_man
Replies: 12
by PinHead » Thu Sep 11, 2008 6:21 pm

First post

I've been trying to think of a valve to use for an RPG or bazooka-style weapon for scenario paintball. A regular sprinkler valve would work fine of...

Last post

@ Biged:

I think I might have to steal that design for the Burstshell launcher I am Constructing. Might be alot more... Pretty.... then a QEV.

12 Replies

4601 Views

Last post by VH_man
Sun Sep 14, 2008 8:35 am
First Cannon

Last post by brplatz
Replies: 6
by itlbtu2 » Tue Sep 09, 2008 10:03 pm

First post

Hi to all and thanks for such an informitave site. I have been a lurker for the last few days now and I finally got my cannon finished up. I wanted...

Last post

You could build one yourself

6 Replies

3092 Views

Last post by brplatz
Sat Sep 13, 2008 6:09 pm
Coaxial problem

Last post by Demon
Replies: 12
by Demon » Thu Sep 11, 2008 3:29 pm

First post

I have a big problem:

My coaxial is 2 feets long, have a 3inch chamber and 1 1/2 inch barrel.

My piston is a 2 inch pvc endcap wraped in a little...

Last post

HO HO!

I am now very stressed because i just see on an other topic then piston valves guns needs lubrications... and mine is glued with pvc cement....

12 Replies

3032 Views

Last post by Demon
Sat Sep 13, 2008 10:52 am

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