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

1125660 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

552604 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

821433 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

967485 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

375067 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

92468 Views

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

Topics

Pressure Rating for Brass Fittings

Last post by john bunsenburner
Replies: 1
by littlebro05 » Sun Aug 16, 2009 2:11 am

First post

Long Time no Post,

I've been busy with school work, but I'm going to get back into it soon after the final year is out :D.

Anywho... I was planning...

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Brass will easily hold all the pressure a shock pump can put out. Anything up to 700-1000psi should be perfectly fine. After that you simply have to...

1 Replies

3045 Views

Last post by john bunsenburner
Sun Aug 16, 2009 2:46 am
Giant air cannon

Last post by Technician1002
Replies: 5
by missourian » Sat Aug 15, 2009 10:27 am

First post

I am wanting to inquire on the feasibility of making a long 3 inch barreled pneumatic cannon. What i have in mind is two 5 foot pressure chambers and...

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A mauler valve would probably limit flow greatly so i would go for a supah valve.
Tests have shown that Maulers outperform Supah valves. Flow...

5 Replies

2133 Views

Last post by Technician1002
Sat Aug 15, 2009 11:51 pm
electric vs. pneumatic

Last post by Technician1002
Replies: 22
by gabeb123 » Tue Aug 04, 2009 12:43 am
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hey i want to make a pneumatic cannon but i want to be able to fire it at a distance and i think i am going to use a sprinculer valve but would it be...

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If all you want to do is scare the squirrel, a straight up sprinkler valve totaly unmodified would do everything you want. After all, that honking...
22 Replies

5817 Views

Last post by Technician1002
Sat Aug 15, 2009 11:43 pm
Barrel Sealing Piston Valve Question

Last post by AngryChauncey
Replies: 17
by AngryChauncey » Thu Aug 13, 2009 12:18 am
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I am in the process of making a standard barrel sealing piston valve in a 1.5 tee, and I am wondering about the pilot valve. The pilot chamber is 1.5...

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I went over to my nieghbor's house who is an engineer and he made it as close to 90* as it's ever going to get. I'm still waiting on the glue to dry...
17 Replies

4808 Views

Last post by AngryChauncey
Sat Aug 15, 2009 8:34 pm
hammer valve

Last post by ramses
Replies: 10
by roughboy » Tue Aug 11, 2009 11:04 am

First post

has anyone in this forum ever made a gun with a hammer valve? i've tried the search area and nothing comes up.

Last post

There is no spon ...

lol.

this is getting pretty off topic. but the question has been answered.

10 Replies

4662 Views

Last post by ramses
Sat Aug 15, 2009 9:13 am
Need Help Persuading ASME

Last post by D_Hall
Replies: 7
by rcman50166 » Fri Aug 14, 2009 10:52 pm

First post

Hey all, been a while since I've posted. Anyways I need help persuading ASME (The American Society of Mechanical Engineers) New Haven chapter to...

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As an organization, the ASME's bread and butter is pressure vessels. What does it say about the ASME if it chooses the option that avoids the...

7 Replies

1599 Views

Last post by D_Hall
Sat Aug 15, 2009 12:54 am
Onboard pumps

Last post by Gippeto
Replies: 1
by inonickname » Fri Aug 14, 2009 4:06 am

First post

Des-2 was originally designed to use an onboard pump. For those with experience; what is the practicality of this? The pump I have made so far is...

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73 looky lous and not a single reply. :roll:

Sounds adequate, but whether you can apply the necessary force to reach your pressure goals will...

1 Replies

734 Views

Last post by Gippeto
Fri Aug 14, 2009 11:21 pm
how do air-line filters work??

Last post by Technician1002
Replies: 20
by POLAND_SPUD » Fri Aug 14, 2009 8:42 am
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the title speaks for itself...
I want to build an air filter for a fridge compressor... its main aim is to remove oil that comes out of a fridge...

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well if you are looking for a portable compressor you might be better off with what tech uses...
he bought an inverter and a small air compressor...
20 Replies

8658 Views

Last post by Technician1002
Fri Aug 14, 2009 6:04 pm
First Cannon Problems

Last post by Technician1002
Replies: 7
by Alucard » Tue Aug 11, 2009 9:10 pm

First post

Well I built a cannon the other day, its basically a 1 x1' Pressurized PVC Pipe with a slip to thread addapter, thread wraped in teflon, then screwed...

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Cool, I'm glad you got it to work, one thing you might want to look into for a future design is, try to have a chamber that is a bit larger size than...

7 Replies

2298 Views

Last post by Technician1002
Thu Aug 13, 2009 5:43 pm
Pics Now...My First Copper...Soon to be walking cane gun ...

Last post by jackssmirkingrevenge
Replies: 19
by jeepkahn » Thu Mar 19, 2009 11:28 am
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I mentioned it in another thread, but I'll give more details here...
It's a working gun but not a completed project, yet...

It's a 40.5 x .5 barrel,...

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The secrecy is very much in line with the air cane's reputation early last century as a favourite weapon for poachers, powerful and quiet enough to...
19 Replies

15378 Views

Last post by jackssmirkingrevenge
Thu Aug 13, 2009 1:50 pm
Wooden Pneumatic Air Gun. (with video)

Last post by eggbom
Replies: 10
by eggbom » Wed Aug 12, 2009 12:16 pm

First post

my first project, as you can see the solder part is bad, but that was my first try, and it's working :)

Video:

thanks anyway for the people who...

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Nice build, looking at the stock you can tell it took some time that said it doesn't look very ergonomic or that visually appealing. Why did you cut...

10 Replies

6382 Views

Last post by eggbom
Thu Aug 13, 2009 5:24 am
coaxial piston question

Last post by inonickname
Replies: 7
by smiley_666 » Wed Aug 12, 2009 8:36 am

First post

i am planing on making a coaxial valved cannon in the near future, and i was wondering if the shape of the piston could improve performance at all....

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No need for the two semicircles, just a concave cone will increase power. However, the increase won't be realized without a chronograph.

7 Replies

2676 Views

Last post by inonickname
Thu Aug 13, 2009 4:01 am
Copper Coaxial Problems / Questions

Last post by Technician1002
Replies: 7
by shadowzzz » Mon Aug 10, 2009 3:32 pm

First post

I still have some unanswered questions about making a copper coaxial gun:

1. Is it a problem that the chamber is 22mm (3/4 ) and the barrel is...

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Anyone got the answer to this question :

Quick Question: How does one keep the barrel suspended within the chamber in such a way that the...

7 Replies

2587 Views

Last post by Technician1002
Tue Aug 11, 2009 7:09 pm
QEV valves.

Last post by Spooky
Replies: 14
by Scottaiii » Mon Aug 03, 2009 4:44 am

First post

Hey all

Been a long time since i've been on spudfiles, my old user name was Thursto, or Rapidfire i cant remember.

But anyways i wanted to start...

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Hi all,

I recently decided on and bought the pieces for my first pneumatic based on what I've learned from lurking here on this great forum.

I...

14 Replies

6160 Views

Last post by Spooky
Tue Aug 11, 2009 5:00 pm
more on pumps

Last post by jimmy101
Replies: 5
by geardog32 » Mon Aug 10, 2009 10:53 pm

First post

OK so i know i have been asking alot of questions about pumps on here, but i just have one more. OK so i bought a cheap bicycle pump at Walmart(i...

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If as you say its the leather washer that will fail then no harm will come to the rest of the pump in the meantime.
Actually, I would be much more...

5 Replies

1841 Views

Last post by jimmy101
Tue Aug 11, 2009 11:25 am
oak gunstock with a simple brass coaxal attached

Last post by smexysmileyPiston
Replies: 35
by jook13 » Mon Mar 16, 2009 1:40 am
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I made a How To on carving a stock and this is the finished piece.

the piston is a piece of brass pipe that fits snug in the chamber. I stamped out...

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very nice gun...did u glue ur barrel in? also what did u make your piston out of?? i want to see Wat damage the lil beast can do :twisted: :twisted:...
35 Replies

25517 Views

Last post by smexysmileyPiston
Tue Aug 11, 2009 4:12 am
Supha valve

Last post by Technician1002
Replies: 4
by metalmeltr » Mon Aug 10, 2009 6:52 am

First post

Does any one know hw to make a supha valve?

Last post

Spoon fed

4 Replies

1475 Views

Last post by Technician1002
Mon Aug 10, 2009 3:44 pm
Check this out!

Last post by boyntonstu
Replies: 77
by boyntonstu » Sun Jul 26, 2009 8:46 pm
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I am impressed by the air blast!

Now imagine it with 5 rubbers and a trigger built like a spear gun.

Joerg and I have been cooperating on this...

Last post

Thanks Brian,

Have you considered using a tiny homemade pulley made from a piece of ~1/2 OD plastic tubing on a shaft?

I am thinking light weight...
77 Replies

13509 Views

Last post by boyntonstu
Mon Aug 10, 2009 9:19 am
The limit for shock pumps?

Last post by spudtyrrant
Replies: 9
by inonickname » Sun Aug 09, 2009 7:44 am

First post

Well, many members now own the low-volume, high pressure shock pumps meant for inflating mountain bike shocks.

They are basically slow for most...

Last post

They pump nearly effortlessly to 400 psi.
well i got a planet bike shock pump i i can tell you one thing its not effortless at 400psi it easy till...

9 Replies

1999 Views

Last post by spudtyrrant
Sun Aug 09, 2009 2:55 pm
need some help with Coaxial vent with sprinkler valve

Last post by inonickname
Replies: 2
by Crna Legija » Sat Aug 08, 2009 8:05 am

First post

which side of a sprinkler valve would go to the gun chamber or barrel side? its a coaxial canon

Last post

Way to go man, talk nonsense. I can barely hazard a guess at what you want.

Erm..you have the chamber side holding pressure? Shouldn't that be...

2 Replies

1596 Views

Last post by inonickname
Sat Aug 08, 2009 8:43 am
Dual reserve design - can it work?

Last post by jackssmirkingrevenge
Replies: 3
by Brad33 » Sat Aug 08, 2009 12:21 am

First post

Hey guys,

I was thinking for a while about building my first gun, and thought up a design like this:

This is how I envisioned it working: Let...

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If you have a bit of money to spend, invest in one of these as your pirmary chamber and your multishot prospects will be much improved ;)

3 Replies

968 Views

Last post by jackssmirkingrevenge
Sat Aug 08, 2009 1:31 am
Making a piston in a cross

Last post by mobile chernobyl
Replies: 7
by colty-bear » Sat Aug 01, 2009 10:02 pm

First post

has anybody made a piston housed in a cross? if now i may think on making one

Last post

No - It has never been done.

I didn't make this gun.

:wink:

7 Replies

2911 Views

Last post by mobile chernobyl
Fri Aug 07, 2009 8:30 pm
Propane Semi Auto Spud Cannon Design Help!

Last post by spudnutbutthut
Replies: 56
by spudnutbutthut » Wed Aug 05, 2009 6:42 pm
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1. 2 inch barrel

2. 2 to 1 in. reduction for sprinkler valve

3. blow gun

4. propane hooked up to chamber with hose

5. 1 inch sprinkler valve...

Last post

il think about, muzzle losdingbis fun though :]
56 Replies

23592 Views

Last post by spudnutbutthut
Fri Aug 07, 2009 12:44 pm
Quick Reload

Last post by Hubb
Replies: 9
by spudnutbutthut » Thu Aug 06, 2009 4:07 pm

First post

Is there anyway to quickly fill a spud cannon? Besides, propane and hpa?

Last post

see, does a benzomatic torch have compatability with the fat propane tanks or just the one it comes with, and pretty much i should just clamb a hose...

9 Replies

3568 Views

Last post by Hubb
Fri Aug 07, 2009 8:06 am
Desert Storm Re-release

Last post by john bunsenburner
Replies: 38
by Pookydarts » Fri Feb 27, 2009 7:48 pm
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Hi again! :P

I would like to present, ...for the second time :? ... Desert Storm.

(To view original post goto:
)

I apologise in advance for...

Last post

Now these are the times i wish roguesci back to life, the mods would of had their fun here...

We should get a BFL section if we get more of...
38 Replies

20175 Views

Last post by john bunsenburner
Fri Aug 07, 2009 5:07 am

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