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...

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

929382 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

453363 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

471647 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

639125 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

332677 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

80442 Views

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

Topics

Sprinkler Valve

Last post by Hubb
Replies: 23
by medievalman » Sun Dec 10, 2006 8:46 am
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i know that there is already a post on modding sprinkler valves, but there is like 5 pages of posts so i thought i could post my question here.

i...

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Ok thanks a lot for that FAST reply!!! In case of having a guide rod i only have to ¨move¨ where the hole has to be, no other thing has to be done i...
23 Replies

7750 Views

Last post by Hubb
Thu Jun 10, 2010 7:51 pm
Northir's Cannons

Last post by stefano
Replies: 9
by Northir » Wed Sep 23, 2009 4:36 am

First post

I figure Ill just post all my cannons here instead of posting a new one every time i make one! in order of creation.

Everyones favorite the 2 piece...

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Ho i would like to know how did you managed to mod the 100-DV valve?? The bleed screw is not aligned, would this make a problem??? Or i only have to...

9 Replies

4045 Views

Last post by stefano
Thu Jun 10, 2010 7:07 pm
Homemade Pump- Floating O-ring

Last post by ramses
Replies: 10
by saefroch » Wed Jun 09, 2010 9:07 pm

First post

Well I made a thread a while back on my homemade HPA pump and now I've made some serious headway on actually building it. In fact, it's almost...

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Here is the pump calculator I wrote a while ago. It makes some epic assumptions(constant temperature), and no one has ever actually checked it. You...

10 Replies

2316 Views

Last post by ramses
Thu Jun 10, 2010 3:12 pm
Supah-Valve

Last post by someguy314
Replies: 15
by someguy314 » Wed Jun 09, 2010 5:48 pm
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This may be a simple question for many people out there on Spudfiles and you might even think I'm dumb(I understand if you do). But I just can't...

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Hahaha ok but yeah like technician said you should probably stop talking about that. But anyways thanks hubb for that explanation i'll checkout the...
15 Replies

5978 Views

Last post by someguy314
Thu Jun 10, 2010 2:15 pm
Pneumatic Cannon

Last post by Technician1002
Replies: 4
by j.turner13 » Thu Jun 10, 2010 12:32 am

First post

Hello Everyone,

I have a few questions, they're basic so if the answers are somewhere else please point me in the right direction.

I am planning on...

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If you use CO2, plan on only using a soda fountian type with a primary regulator to provide a maximum of 100 PSI to the PVC parts. Do not use single...

4 Replies

1754 Views

Last post by Technician1002
Thu Jun 10, 2010 11:01 am
2 inch piston valve housing?

Last post by BeaverRat
Replies: 9
by BeaverRat » Mon May 31, 2010 9:22 pm

First post

Hello,

I successfully built the Hubb 2 inch piston, but I really don't know how to do any of the valve housing. I know that the piston rides in 2...

Last post

Thanks... here it is

9 Replies

2484 Views

Last post by BeaverRat
Thu Jun 10, 2010 12:57 am
3 Way Valve N.O. and N.C.

Last post by POLAND_SPUD
Replies: 9
by DinerKid » Wed Jun 09, 2010 7:11 pm

First post

I have been looking at 3 way valves for a cannon i am planning out however i can not seem to figure out if i want a normally open or normally closed...

Last post

yes, you can use a solenoid valve (also NO). Just remember that it requires batteries

you can also use bike brake cable to actuate the valve from a...

9 Replies

4018 Views

Last post by POLAND_SPUD
Wed Jun 09, 2010 11:00 pm
How Do You Make A Piston Valve?

Last post by someguy314
Replies: 24
by someguy314 » Mon Jun 07, 2010 5:03 pm
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I was wondering how would you make the piston for the piston valve? Like is there like a part I can find at like a hardware store?

btw this is my...

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Chamber seal, Barrel Seal, and Coaxial are shown.

oh
24 Replies

8810 Views

Last post by someguy314
Wed Jun 09, 2010 5:24 pm
aircannon questions

Last post by nosnik
Replies: 10
by nosnik » Sat Jun 05, 2010 12:24 pm

First post

OK GUYS! first thing this gun is awesome!! (trawling for information when i can across this.) if i increase the barrel length and decrease its size...

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I LOVE U I LOVE U I LOVE U I LOVE U I LOVE U I LOVE U I LOVE U I LOVE U I LOVE U I LOVE U I LOVE U I LOVE U I LOVE U I LOVE U I LOVE U I LOVE U I...

10 Replies

3288 Views

Last post by nosnik
Wed Jun 09, 2010 1:13 pm
This valve...

Last post by Gun Freak
Replies: 13
by Gun Freak » Tue Jun 08, 2010 3:19 pm

First post

Well I thought of a way to go compact and servicable in a piston vavle very easily. pisture explains all, not to scale.

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Yes MRR but the point of mine was to make the pilot directly behind the tee with no fittings. There's one thing I just realized though... I didn't...

13 Replies

2511 Views

Last post by Gun Freak
Wed Jun 09, 2010 9:12 am
chapstick assasain

Last post by Ranger
Replies: 49
by Mr.Sandman » Wed Jun 25, 2008 1:52 pm
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this is my smallest coaxial gun. I made it because I could not make a bigger gun and the fact that I am broke. I used a pen tube for the barrel.
I...

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Cool 8) I would make some sort of pistol grip for it.
49 Replies

15073 Views

Last post by Ranger
Tue Jun 08, 2010 7:58 pm
High pressure co-axial build log- updated 11/14/08

Last post by woodscout
Replies: 112
by Gippeto » Mon Jan 21, 2008 12:20 am
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All metal co-axial design.
Piston to be piloted by a hammer valve.
Bullpup configuration to keep it short.

All tubing is 1026 DOM (Drawn On...

Last post

build your home once and do it right, whn you are don the boom is more fun than ever:D. damn i would want to make a gun like this
112 Replies

58654 Views

Last post by woodscout
Tue Jun 08, 2010 2:37 pm
Home made 1/2 QEV airgun

Last post by kydavies
Replies: 8
by wyz2285 » Mon May 31, 2010 1:12 pm

First post

I have made a 1/2 QEV and it works great :D .
So I made a simple airgun from it :) .
The scope is not real but it helps a lot :o .
Pressure 100 to...

Last post

ok sorry i saw the garden/field in what i think is your back yard

8 Replies

9703 Views

Last post by kydavies
Sun Jun 06, 2010 2:58 pm
i too has full auto

Last post by chinnerz
Replies: 4
by jave101 » Wed Jun 02, 2010 8:20 am

First post

totally ripped off idea for full auto with a minor tweak, adjustment screws to change the compression of the springs on the piston.
basically a large...

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wow, i am liking your style so far. do you work at a machining shop or something??

What are you planning on shooting if i may ask

(and by...

4 Replies

3420 Views

Last post by chinnerz
Fri Jun 04, 2010 8:54 pm
QEV HP test gun

Last post by Gun Freak
Replies: 8
by Lockednloaded » Thu Jun 03, 2010 4:13 pm

First post

I got my QEV in the mail the other day, so i decided to throw together a little gun to test the power. It is probably 800psi capable, but i take it...

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You have to type out quick exhaust valve .

8 Replies

6395 Views

Last post by Gun Freak
Fri Jun 04, 2010 7:23 am
does festo make QEVs

Last post by Crna Legija
Replies: 18
by Crna Legija » Wed May 19, 2010 2:51 am
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i just found out that there is a festo about 5 min walk for my house and tryed goggling them but can acsses there web site to find out if they have...

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yer i wasent sure if i need a NO or NC but it makes sence now thanks for clearing it up

mad ill probly order that QEV when my bro get back.
18 Replies

5033 Views

Last post by Crna Legija
Fri Jun 04, 2010 6:45 am
3/4" QEV vs 1" SV

Last post by jrrdw
Replies: 2
by Lockednloaded » Tue Jun 01, 2010 9:42 pm

First post

I just got my 3/4 QEV in the mail today!
I would like to use it for multiple cannon systems, everything from a golfball gun to a semi automatic...

Last post

To the front of the line. 5

2 Replies

1442 Views

Last post by jrrdw
Wed Jun 02, 2010 5:35 am
Presenting The Mouse Musket

Last post by jrrdw
Replies: 7
by Technician1002 » Mon May 31, 2010 12:37 pm

First post

I refer to The Mouse Musket often to help describe construction ideas and piston theory. I had a request to post this so here it is in all it's...

Last post

To the front of the line. 4

7 Replies

6639 Views

Last post by jrrdw
Wed Jun 02, 2010 5:32 am
3/4" QEV piloting

Last post by POLAND_SPUD
Replies: 4
by woodscout » Tue Jun 01, 2010 11:28 am

First post

is the 3 way push button valve(small) enouhg to pilot an 3/4 QEV? its going to be used on a marble rifle. also how much pressure do i need to shoot...

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yeah most 1/8 valve will have too little flow... possibly clippard's MJVO-3 is good enough but I can't test it

alternatively you can use an aux....

4 Replies

1556 Views

Last post by POLAND_SPUD
Tue Jun 01, 2010 9:58 pm
K.C.C (Kinda Compact Coax)

Last post by Crna Legija
Replies: 15
by clemsonguy1125 » Tue Jun 01, 2010 2:58 pm
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Heres my newest creation, is a coax piston valve. Its was designed to be compact but is a little bulky. It works well and can drive a nail dart into...

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i would find the leek put some jb weld on then get your vacuum cleaner and suck the jb in the leak,i've use that up to 350 psi on my gun but i had a...
15 Replies

4044 Views

Last post by Crna Legija
Tue Jun 01, 2010 8:28 pm
will this work?

Last post by jrrdw
Replies: 3
by spikerbond » Mon May 31, 2010 4:20 pm

First post

well, will it?

forgot to put that blue = air

Last post

You have to be more discriptive in the question, you also posted in a section that is clearly marked NOT FOR HELP ME POST . I will move it this...

3 Replies

1502 Views

Last post by jrrdw
Tue Jun 01, 2010 4:10 pm
sprinkler valve equalization

Last post by Howzer
Replies: 10
by Howzer » Thu May 27, 2010 4:45 pm

First post

my 3/4 orbit sprinkler valve honks when i'm filling it, should i remove this white plastic filter-like thing from the existing equalization hole?...

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well, i ended up leaving it in and moved the fill valve to a tee before the blow gun and the launcher works great now(i'm sure there's room for...

10 Replies

2402 Views

Last post by Howzer
Tue Jun 01, 2010 11:57 am
need to build a waterballoon launcher

Last post by Technician1002
Replies: 21
by killjoy_xt » Mon May 31, 2010 3:14 pm
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see im trying to build a launcher to throw a small water balloon about 100 feet. my design specs are to make a launcher as small as possible and as...

Last post

Having launched water balloons, the sudden acceleration of a high energy launcher tends to exceed the stress limits of the water container causing...
21 Replies

6688 Views

Last post by Technician1002
Mon May 31, 2010 11:31 pm
Damn faulty valve

Last post by kydavies
Replies: 14
by kydavies » Sun May 30, 2010 5:01 pm

First post

the schrader valve on my nerf sniper packed it in. when ever i remove the bike pump after filling my cannon the rubber schrader valve lets all the...

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ive never looked for threaded schraders before but i see how that has the advantage over the unthreaded rubber ones if it breaks or something. il...

14 Replies

3003 Views

Last post by kydavies
Mon May 31, 2010 6:51 pm
Plexiglass piston

Last post by Ranger
Replies: 3
by Ranger » Mon May 31, 2010 3:50 pm

First post

I was looking at

And it got me thinking, the little PVC discs are made from boiled and flatened PVC. I wonder if its possible to make them out of...

Last post

I accidently posted twice :oops:

3 Replies

1476 Views

Last post by Ranger
Mon May 31, 2010 4:04 pm

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