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

902591 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

438819 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

372981 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

616726 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

328127 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

78220 Views

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

Topics

Break-Action Shotgun Seal

Last post by csgunner
Replies: 6
by csgunner » Thu Jan 08, 2009 9:44 pm

First post

alright, after finding out a spent 20 gauge shell make a perfect shell for 1/2 pipe (because of the flange at the end) I decided to make a...

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Yo thanks - found goathunter's gun may use an o-ring

I will have a pressure chamber, just left it off the drawing for clarity

The 20 Gauge shells...

6 Replies

3505 Views

Last post by csgunner
Tue Jan 20, 2009 4:20 pm
Sniper

Last post by Vman
Replies: 28
by Vman » Mon Mar 17, 2008 5:29 am
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This is my second try at a spud gun. The first one i made was also pneumatic but was alot bigger. Probably about 2 meters overall in a line. This one...

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NICE GUN man. also, I fly rc too and Ive been looking for a 50cc yak and I like the looks of that one, who makes it? Also, would a 50cc DA be enough...
28 Replies

10758 Views

Last post by Vman
Mon Jan 19, 2009 11:41 pm
nsf-pw vs. dwv

Last post by MrCrowley
Replies: 14
by dudeman508 » Mon Jan 19, 2009 8:29 pm

First post

well after reading all of the new posts written to help noobs i wanted to make my own.

this is a comparison of Dwv and nsf-pw

hope it helps!!!

Last post

Wow...you learn something new every day

14 Replies

6295 Views

Last post by MrCrowley
Mon Jan 19, 2009 11:03 pm
3/4 piston

Last post by Sticky_Tape
Replies: 3
by quiggly17 » Mon Jan 19, 2009 4:12 pm

First post

i need to know whats the best way to make a piston for a 3/4 inch brass T im not getting a good seal with my current one. Also im not sure if its the...

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This is a piston I made for a 3/4'' copper tee dunno anything about brass though.

3 Replies

1507 Views

Last post by Sticky_Tape
Mon Jan 19, 2009 9:04 pm
air cannon idea

Last post by Lentamentalisk
Replies: 5
by tape fist » Mon Jan 19, 2009 4:32 am

First post

this is my air cannon im going to make tomorrow.
do you see any thing that will go wrong with this design if you do can you please tell me?
thanks

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several major issues. First of all, the silencer will have no effect what so ever. For a suppressor to do anything on a pneumatic, it must have a...

5 Replies

2060 Views

Last post by Lentamentalisk
Mon Jan 19, 2009 1:27 pm
benifit's/liquid gass

Last post by suburban spudgunner
Replies: 6
by Sticky_Tape » Sun Jan 18, 2009 5:40 pm

First post

I don't have any idea why there would be more benifits from gass stored as a liquid. It is the same ammount of gass compressed into the same volume...

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Larger amounts (mol) of liquid gas can be stored in a given space at a lower pressure; I believe most gases of this type (such as CO2) would vaporize...

6 Replies

1734 Views

Last post by suburban spudgunner
Mon Jan 19, 2009 12:17 pm
Semi-Auto Plans (in development)

Last post by SP00K
Replies: 3
by SpudsMcGee » Sun Jan 18, 2009 2:24 am

First post

These are my plans for a semi-auto battery launcher that's in development at the moment, but if the friendly people of SpudFiles will help my work...

Last post

Could you further explain this? I'm really not sure what you're trying to say through your diagram.

From this, all I can guess is that you plan on...

3 Replies

1197 Views

Last post by SP00K
Mon Jan 19, 2009 12:13 pm
coaxial airsoft gun suggestions

Last post by roboman
Replies: 23
by ckman » Sun Jan 18, 2009 1:59 am
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ok guys i am in the midst of making a coax for airsoft and i have everything completed but when i fill the gun up the piston seals but when I open...

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Marine epoxy. It's what JSR uses and recommends.
23 Replies

7541 Views

Last post by roboman
Mon Jan 19, 2009 12:03 pm
Big Enough Air Chamber

Last post by psycix
Replies: 14
by sfmm19 » Wed Jan 14, 2009 7:04 pm

First post

Hi, I'm building cannon using 1 PVC, a .5 barrell and PCGUY's breech loading mechanism. I plan on using a modded sprinkler valve.

If I use the 1 PVC...

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You COULD do it with a 12 volt compressor. But they dont last very long.
I mean those tiny things to have in your car as emergency pump to fill your...

14 Replies

3601 Views

Last post by psycix
Mon Jan 19, 2009 5:39 am
over under air cannon

Last post by Hotwired
Replies: 2
by tape fist » Mon Jan 19, 2009 2:07 am

First post

dose the over under method of building and air cannon cause less sufficient power and if so is it noticeable?

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No it's not noticeable from the viewpoint of a spudgunner.

Yes it is, in theory, not as good for compressed air to travel through a 180* bend as to...

2 Replies

1031 Views

Last post by Hotwired
Mon Jan 19, 2009 3:29 am
Rastamuffin Has Performance Problems

Last post by MrCrowley
Replies: 26
by rastamuffin » Sun Jan 18, 2009 12:19 am
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I made a very simple spudzooka for airsofting purposes a 3ft tank made out of PVC connected to a ball valve and a 2 ft barrel all made out off pvc...

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I have akready given my thanks multiple times to those wbho deserve it so take you Ps and Qs and quite honestly shove 'em
Coming out of retirement,...
26 Replies

6417 Views

Last post by MrCrowley
Mon Jan 19, 2009 12:51 am
Brocock cartridges?

Last post by jackssmirkingrevenge
Replies: 2
by sputnick » Sun Jan 18, 2009 12:32 pm

First post

Hello, After some searching on the Pyramyd air blogs, I finally found the post on Brocock preloaded pneumatic cartridges,

I was hoping someone would...

Last post

Have a look through this post .

2 Replies

1695 Views

Last post by jackssmirkingrevenge
Sun Jan 18, 2009 2:36 pm
How To: Know When Your Soda Bottle Chamber Is About To Blow

Last post by PCGUY
Replies: 50
by MrCrowley » Fri Jan 16, 2009 11:47 pm
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Me and some friends picked up some dry ice from a B.O.C outlet. At $5NZD a kg, we bought about 4kgs. The main purpose was for what you see in the...

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Don't know about other countries, but yes in the states any and all of this is very illegal and you will wind up under arrest if caught. Rule 3 B2...
50 Replies

14506 Views

Last post by PCGUY
Sun Jan 18, 2009 4:32 am
Pneumatic Pengun v2

Last post by Mr.Sandman
Replies: 6
by Mr.Sandman » Fri Jan 16, 2009 8:29 pm

First post

Hey i haven't posted in a while so after months of browsing through the forums i decided to make a pen gun. I've tried before but i kept...

Last post

Viva La Revolucion! :)

Nothing wrong with that Sandman. Looking good I'd say.

Well done. 8)

thank you :D

edit:Epoxy costs around 3:00 per bottle

6 Replies

3643 Views

Last post by Mr.Sandman
Sat Jan 17, 2009 4:29 pm
schrader valve cores

Last post by Daltonultra
Replies: 14
by jackssmirkingrevenge » Mon Dec 22, 2008 12:01 pm

First post

These are the two variations of valve core I've encountered since I started playing with schraders, any other types out there?

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I've seen a few of the ones Gippeto posted, with the long spring. Some of the older trailers they pulled out of the back lot at my old employer had...

14 Replies

5263 Views

Last post by Daltonultra
Sat Jan 17, 2009 3:45 pm
pneumatic repeater sidearm

Last post by sputnick
Replies: 20
by IA_Armourer » Tue Jan 13, 2009 10:46 pm
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my idea is to make a repeating piston pistol where the piston between firing and returning to its normal position it reloads the pistol. my problem...

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wow, not just inspired so much as copied, and as much as I hate to admit it, that was one of my least favorite of JSR's inventions, because as soon...
20 Replies

6127 Views

Last post by sputnick
Sat Jan 17, 2009 8:42 am
qev

Last post by Daltonultra
Replies: 3
by dudeman508 » Fri Jan 16, 2009 8:43 pm

First post

if you scroll to the third set of valves and look at the only one, is that a qev because it came up as a safety pop off valve, and if it is will i be...

Last post

If you need to direct someone to a product on www.mcmaster.com, you have to give the catalog number.

3 Replies

1474 Views

Last post by Daltonultra
Fri Jan 16, 2009 11:45 pm
Slide Check Valve Connections

Last post by daberno123
Replies: 2
by daberno123 » Fri Jan 16, 2009 7:00 pm

First post

I just received a slide check valve from here on eBay.

One side has normal 1/8 NPT threads but the other side (the right side in the picture on the...

Last post

Bah how did I miss that? I swear I looked through there.

Anyone know if that's the same as McMaster #53465K22? $10 is a little steep for a quick...

2 Replies

976 Views

Last post by daberno123
Fri Jan 16, 2009 7:24 pm
pressure question

Last post by jon_89
Replies: 10
by jon_89 » Thu Jan 15, 2009 7:50 pm

First post

What pressure would I have to pump a 1 inch by 5 inch chamber to get 110 psi in a 2 inch by 36 inch chamber? I have no idea what eqaution I would...

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But does putting the ball valve before the burst disk still have the same performance as just the burst disk? I remember there was once a topic on...

10 Replies

2301 Views

Last post by jon_89
Thu Jan 15, 2009 10:02 pm
Brakeline

Last post by suburban spudgunner
Replies: 6
by sputnick » Tue Jan 13, 2009 10:38 pm

First post

Hey everybody,

This question addresses everybody, but I especially want the feedback of people who make BBMG's and other bb guns.

I have 1/4 inch...

Last post

You should be able to use JB weld on it: I used it several times both to construct and repair leaks in my pneumatic. It should hold up, unless you...

6 Replies

2549 Views

Last post by suburban spudgunner
Thu Jan 15, 2009 4:40 am
replica BAR or m240 machine gun

Last post by jackssmirkingrevenge
Replies: 37
by raptorforce » Mon Jan 12, 2009 2:16 am
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which one shoud i attempt to make?

BAR:

M240:

Last post

how long is that gonna last? how many bb s will it fire

Around 100 BBs in about 3 seconds.

how much does a CO2 setup cost? is there anyway you...
37 Replies

6933 Views

Last post by jackssmirkingrevenge
Thu Jan 15, 2009 2:24 am
Help with 'rocket launcher' design

Last post by Marlowe
Replies: 37
by Marlowe » Mon Oct 27, 2008 9:09 pm
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Hey! I'm a paintball player in the North Carolina Triangle area, and my friends and I may be making a team soon. Well, our rocket launcher recently...

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Well, done with the drawings for the pistol. Sadly, still not semi-automatic, and I still don't want to have to go to an electronic trigger setup. I...
37 Replies

16482 Views

Last post by Marlowe
Wed Jan 14, 2009 8:13 pm
My PVC Monster+ lots damage pics and vids-sorry 56 K guys!

Last post by VH_man
Replies: 39
by jook13 » Sun Jan 11, 2009 12:16 pm
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My dad had some 6 inch and 3 inch pipe sitting in the corner of his shop and I was recently able to talk him out of a few pieces. This cannon is the...

Last post

WOW!

that damage is almost as amazing as THIS

(DO NOT REMEMBER WHOS THIS IS, ITS NOT MINE)

Very cool. I wish I had a beast like that...........
39 Replies

15093 Views

Last post by VH_man
Tue Jan 13, 2009 8:22 pm
QEV modding

Last post by Daltonultra
Replies: 9
by Daltonultra » Thu Jan 08, 2009 4:53 pm

First post

Well, I found a spring I think will work right for my QEV, now I just need to know what size hole I need to drill through the piston to allow it to...

Last post

I can make new ones out of a hockey puck anyways. $1.05 a hockey puck and twenty minutes in the garage gets me two pistons, I figure.

9 Replies

3877 Views

Last post by Daltonultra
Tue Jan 13, 2009 6:42 pm
2 Shot cannon design.

Last post by starman
Replies: 4
by curtis118118 » Mon Jan 12, 2009 10:15 am

First post

hey i am new here, bored in class so desided to draw one of these and maby make one, will it work?

it can fire two shots or one big one :) ,...

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You have a tank in the back and a tank underneath. I think you need to add a third ball valve to the neck of the underneath tank. That way you can...

4 Replies

1151 Views

Last post by starman
Mon Jan 12, 2009 11:09 am

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