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

916906 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

449025 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

422165 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

626823 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

330650 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

79518 Views

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

Topics

2 questions for new CO2 powered gun

Last post by absinthe
Replies: 2
by absinthe » Sun Sep 13, 2009 8:17 pm

First post

i am planing to build a co2 hammer valve gun that uses soda stream bottles directly screwed into the system (i have a few and i can refill em...

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thanks i have read you talking about that before :P what i really need is pressure ratings will brass fittings handle unreged co2?

2 Replies

1337 Views

Last post by absinthe
Mon Sep 14, 2009 10:34 am
1'' Bouncy ball pistol with clip system. With video

Last post by Technician1002
Replies: 76
by jhalek90 » Sun Aug 16, 2009 11:25 am
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I build the pistol in an afternoon, my goal was to make a small, but powerful pistol type cannon.

Spec's
Chamber: 2'' Pvc
Barrel: 1'' Pvc in a 1...

Last post

I am working on an illuminated projectile for a night shot to help track and retrieve it. At the church camp, launching water bottles at dusk and...
76 Replies

24528 Views

Last post by Technician1002
Sun Sep 13, 2009 10:11 pm
Piston in a Cross cannon

Last post by Technician1002
Replies: 19
by jhalek90 » Sat Sep 12, 2009 10:50 am
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So heres what I got:
Barrel .5'' or 1''
chambers: APROX (1''x16'') each
Piston valve housed in a cross piece.... works juts like a t
Pilot... modded...

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Ideally the maximum air speed through a pipe transition or orifice is Mach 1. I learned this studying a NASA site on the design of rocket nozzles....
19 Replies

5392 Views

Last post by Technician1002
Sun Sep 13, 2009 8:01 pm
XM2

Last post by sssssbooom
Replies: 50
by wngovr » Tue Jul 28, 2009 9:22 pm
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Ok, some of you may remember my first pnematic gun.

I really liked that gun but it had many problems. So I thought I would redesign it applying...

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well you need to fix the....... Just kidding this is absolutely perfect! any video of it in action?
50 Replies

24313 Views

Last post by sssssbooom
Sun Sep 13, 2009 6:58 pm
Need some ideas for a Air powered golf ball cannon

Last post by Northir
Replies: 17
by Northir » Fri Sep 11, 2009 11:47 pm
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just like it says im making a golf ball cannon, and was hoping you guys had some tips, i only get 100 psi to work with, all ready know i need to pick...

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So i have what i think my valve should look like

and

so i want to glue it all together but didnt want it to be a screw up since i put so much...
17 Replies

4552 Views

Last post by Northir
Sun Sep 13, 2009 5:41 pm
Pneumatic air cannon without proyectile

Last post by tomthebomb137
Replies: 32
by jarm0591 » Sun Sep 06, 2009 11:45 pm
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Hi everybody, I am going to do a school project related to air cannons and a have a noob question that i didn't found with the search function. I...

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I may text my pulse valve cannon for this as that is actually what a pulse valve is designed to do, knock things with blasts of air (they are used in...
32 Replies

11468 Views

Last post by tomthebomb137
Sun Sep 13, 2009 4:22 pm
New Valve!....Back filled push-button valve!

Last post by Mitchza89
Replies: 21
by Mitchza89 » Tue Sep 08, 2009 2:18 am
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Hey guys,

This is my new little creation. I've seen a few nice push valves on here so I thought I'd take it to the next level. I wanted something...

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Absolutely mate. That's the idea. Thanks very much for the post :D

Mitch.
21 Replies

12071 Views

Last post by Mitchza89
Sun Sep 13, 2009 1:05 am
i need help finishing my coaxal

Last post by turner
Replies: 7
by turner » Mon Sep 07, 2009 10:40 pm

First post

how would i put a 5/16 aluminum barrel sleeved in 9/32 inside the chamber. i tried drillling a hole in an end cap its to hard to make small enough...

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todaw i went to lows and there selection sucks so i got a 1/2 to 1/4 reducer and jb welded the barrel see if it worked tomorrow

7 Replies

2145 Views

Last post by turner
Sat Sep 12, 2009 6:44 pm
Still thinking of selling pumps..

Last post by Technician1002
Replies: 9
by Mitchza89 » Thu Sep 10, 2009 6:13 am

First post

Hi guys,

I'm gonna get the materials for a high pressure pump tomorrow. This is going to be all epoxied brass and copper with a polished finish. If...

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sounds awesome, would be nice to get a good guide for a high PSI pump, all though im still tryin to wrap my head around the piston valve thing

Good...

9 Replies

2500 Views

Last post by Technician1002
Sat Sep 12, 2009 11:28 am
1/2" bore 3/4" copper coaxial musket

Last post by absinthe
Replies: 35
by absinthe » Tue Aug 18, 2009 7:03 am
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i just finished my newest gun

its a bit long (barrel is 120cm) but i think thats alright for a musket :P
it has a few changes to be done...

Last post

just some damage pics

@500psi number 0 sinker at about 6 mtrs into 12mm marine ply and 2 sheets of thin steel, went trough the ply and one sheet of...
35 Replies

12114 Views

Last post by absinthe
Sat Sep 12, 2009 7:20 am
spud gun war head

Last post by boom shtick
Replies: 37
by boom shtick » Tue Sep 08, 2009 2:55 pm
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hey
I am planning to make a spud gun for airsoft that uses a burst disk firing mechanism. I want to do is make a warhead that carry`s non compacted...

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alright thanks ......................
37 Replies

9396 Views

Last post by boom shtick
Fri Sep 11, 2009 1:26 pm
3/4" Hose Barb Substitute?

Last post by MRR
Replies: 5
by boyntonstu » Thu Sep 10, 2009 2:35 pm

First post

I have all the fittings for a 3/4 brass T piston valve, but I can't locate a hose barb for a 3/4 tee for the sealing surface.

Is there another way...

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Hi Stu,
I've made this little tutorial a while ago ...Brass fitting piston valve .

It is very reliable but you should go with a lighter piston....

5 Replies

2250 Views

Last post by MRR
Fri Sep 11, 2009 12:28 am
Barrel PSI vs chamber PSI!

Last post by ramses
Replies: 7
by boyntonstu » Wed Sep 09, 2009 7:33 pm

First post

Here is an axample :

You are shooting marbles through a CPVC barrel rated at 400 PSI could you use 600 PSI pressure in the steel/brass/copper...

Last post

However, a crack propagation probably won't happen if you use a metal chamber, although copper may tear if you are unlucky.

7 Replies

1439 Views

Last post by ramses
Thu Sep 10, 2009 5:57 pm
pistons

Last post by Hubb
Replies: 4
by cannon monkey » Wed Sep 09, 2009 10:29 am

First post

ok im heading down to the store in a little bit i need pay cellphone bill and pick up some poxy for my skimboard
i wanted to know what kind poxy i...

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what do you think should i keep the hot glue piston or make one out of this marine epoxy Not trying to be mean, but I am curious as to why you would...

4 Replies

1036 Views

Last post by Hubb
Thu Sep 10, 2009 12:45 pm
coaxial piston.evolution 2

Last post by MrCrowley
Replies: 30
by FORE!!!! » Sat Aug 22, 2009 8:58 pm
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Well here's my second coaxial piston which KICKS THE 5HIT out of my last one and im quite impressed with.,this is the product of 4 hours work,Its...

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@sandman i brought one today it cost me $70 which is a farken rip off

I love that place, even with shipping it'd be heaps cheaper. I got a larger...
30 Replies

11091 Views

Last post by MrCrowley
Wed Sep 09, 2009 1:25 am
PCP air gun pumps

Last post by jackssmirkingrevenge
Replies: 9
by auxiliary » Tue Sep 08, 2009 8:21 pm

First post

I have always wanted one of those floor pumps that are capable of filling an HPA tank (with a lot of work), and I always wanted to build a homemade...

Last post

A homebuilt 2 stage pump by spudamine, have a look here ;)

9 Replies

2891 Views

Last post by jackssmirkingrevenge
Tue Sep 08, 2009 11:47 pm
2" Piston How-To

Last post by Hubb
Replies: 3
by Hubb » Thu Aug 27, 2009 6:00 pm

First post

While I am aware that there have been many launchers to use a 2 barrel sealing piston valve, and I am also aware that the most commonly used method...

Last post

I've added a little more detail and some more techniques into this book.

I haven't built one of these in a while and I pulled it out to double-check...

3 Replies

1558 Views

Last post by Hubb
Tue Sep 08, 2009 3:43 pm
Could Semi-auto be this easy?

Last post by jor2daje
Replies: 10
by jor2daje » Mon Sep 07, 2009 2:02 am

First post

I came up with this rough design that uses a three way valve to pilot and fill a qev. But instead of using a blowforward bolt or a t-mag I plan on...

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Ya the more I think about it I like your galvanised steel idea, I have some steel and I think ill just weld up a frame and bolt the valves and stuff...

10 Replies

2946 Views

Last post by jor2daje
Mon Sep 07, 2009 8:58 pm
Paintball Sniper, Sleek and Powerful

Last post by AxelTheWicked
Replies: 23
by K-Dawg- » Sun Jun 21, 2009 1:40 pm
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This is my latest creation. It is a fairly simple sniper derived from a conglomeration of various designs on the site. The gun features a typical 1...

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ok, thanks. i got it. and i'm almost finished with my rifle. i actually built a similar version of the rifle that KDawg posted. the only difference...
23 Replies

13350 Views

Last post by AxelTheWicked
Mon Sep 07, 2009 2:08 am
6mm Coaxial Piston Cannon

Last post by MrCrowley
Replies: 24
by MrCrowley » Sun Aug 30, 2009 2:10 am
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Just something I whipped up from spare parts in the garage over the weekend. Just a basic coaxial piston cannon with a 6mm barrel. I use it up to...

Last post

Update:
Shorter barrel
Scope
Modded blowgun
24 Replies

8103 Views

Last post by MrCrowley
Mon Sep 07, 2009 1:51 am
Workin on my first Pneumatic cannon/launcher lookin for tips

Last post by Northir
Replies: 16
by Northir » Sun Sep 06, 2009 3:25 am
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Im working on my launcher, im using a quick connect and a ball valve, for direct connect to my air compressor and if i want a portable air source a...

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Yea all ready working on the next one, i went through a valve working on this one so im trying to repair the broken valve then ill use the better...
16 Replies

3925 Views

Last post by Northir
Mon Sep 07, 2009 1:30 am
coax help

Last post by MrCrowley
Replies: 8
by Crna Legija » Sun Sep 06, 2009 8:07 am

First post

how much epoxy do i need to hold my barrel in my camber. it would be at 150-200psi steal barrel and chamber. 1/2 inch id camber and 8mm od barrel...

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When my barrel was epoxied in, it lent to one side a bit, so I just used a support on that side to centre it again, but if your barrel is more than...

8 Replies

2811 Views

Last post by MrCrowley
Mon Sep 07, 2009 12:41 am
high pressure valves

Last post by wngovr
Replies: 18
by wngovr » Fri Sep 04, 2009 9:31 pm
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I found a qev at McMaster-Carr that can handle 1200 psi. At 170.00$ I want to make my own valve. Can we make valves that can handle that kind of...

Last post

Gippeto,
Im thinking about doing a cross between a barrel piston and a q.d.v. valve.

Setiously though why not just beef up xm2 instead of a whole...
18 Replies

5957 Views

Last post by wngovr
Sun Sep 06, 2009 10:25 pm
3" pressure-rated PVC

Last post by Technician1002
Replies: 16
by dimwell » Sun Sep 06, 2009 3:04 am
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I can't find 3 pressure-rated PVC anywhere locally, so I used 2 PVC and extended the chamber by a third to maintain volume.

Where do you buy your 3...

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and with a sprinkler vavle i dont think a .3:1 ratio would be very good. a sprinkler valve just isnt crazy efficent like the QDV

I've seen many...
16 Replies

3609 Views

Last post by Technician1002
Sun Sep 06, 2009 8:34 pm
copper coaxal help

Last post by turner
Replies: 2
by turner » Sat Sep 05, 2009 11:45 pm

First post

right now i have a 11 piece of 3/4 copper. i soldered a female addapter to it but the threads go smaller than the walls of the pipe. what fitting...

Last post

thanks its just kinda hard to get rides to the ace all the time. i have the back, the barrel is just the hard part

2 Replies

1166 Views

Last post by turner
Sun Sep 06, 2009 5:42 pm

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