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

903457 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

439348 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

375573 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

617184 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

328335 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

78295 Views

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

Topics

Weapon X- Pnuematic Airsoft Artillary Cannon

Last post by aaron181
Replies: 12
by Backdraft » Thu Aug 28, 2008 6:24 pm

First post

its a pneumatic of course, the tanks are 4 pvc about 3 feet long a piece. Joined at the middle with an equalization hose.

The purpose of this cannon...

Last post

nice that cannon looks like it cost a bit but

12 Replies

6303 Views

Last post by aaron181
Mon Feb 23, 2009 4:59 am
Propane Pneumatic Problem

Last post by ramses
Replies: 31
by Sonicboom101 » Wed Feb 18, 2009 9:31 pm
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I having some troubles using propane on my newly made pneumatic gun, I basically have a blue propane cylinder, that goes to a ball valve, that goes...

Last post

that is the concept of the expansion chamber.
31 Replies

7315 Views

Last post by ramses
Sun Feb 22, 2009 7:50 pm
Cloud with ammo besides bbs

Last post by Brian the brain
Replies: 10
by dudeman508 » Sat Feb 21, 2009 9:35 pm

First post

The title explains it all, my question is... has anyone ever made a cloud with ammo other than bbs? and im not going to answer why are you asking...

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my Marble MG, but with a rise tube and feed tube.Basically, a cloud, without all the extra space.

10 Replies

2232 Views

Last post by Brian the brain
Sun Feb 22, 2009 6:15 pm
Fridgy help

Last post by Brian the brain
Replies: 13
by sputnick » Sat Feb 21, 2009 4:32 pm

First post

Hey everyone, So after deciding to go ahead with it, I went out today and collected the fridge compressor.

2 hours and a very large cut across my...

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I use a one way valve in stead of the ballvalve.
Not only is it easier because you don;t have to manually close a valve, you canlt forget to close it...

13 Replies

3247 Views

Last post by Brian the brain
Sun Feb 22, 2009 4:18 pm
piston seal help

Last post by Gippeto
Replies: 5
by daniel323 » Sat Feb 21, 2009 10:51 pm

First post

if i was planning on making a copper piston gun how would i get the piston to seal against the barrel because the copper has a little lip that stops...

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Your post is somewhat less than specific . I'll take a WAG that you're referring to the lip in a tee. :)

Dremel (use a sanding drum) or otherwise...

5 Replies

1467 Views

Last post by Gippeto
Sun Feb 22, 2009 3:17 am
coax piston help

Last post by daniel323
Replies: 4
by daniel323 » Sat Feb 21, 2009 9:16 pm

First post

sorry i am probably going to sound stupid but

on a coax piston gun- when you fill the chamber how does the pressure get past the piston when it...

Last post

ok...now i got it (i knew how they worked in a normal over under piston gun but now i understand both)

thanks

4 Replies

1443 Views

Last post by daniel323
Sat Feb 21, 2009 9:39 pm
Hybrid Pressure Safety

Last post by Lentamentalisk
Replies: 12
by Lentamentalisk » Fri Feb 20, 2009 1:57 am

First post

OK, I am working on designing an extremely high x hybrid, and I was wondering whether a hydraulic ball valve would work at the same pressures with a...

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Um...

Unthreaded: 7972K319 $88
Threaded: 5016T75 $64

I save $24 by having them thread a piece of 36 pipe for me beforehand, not even counting the...

12 Replies

2802 Views

Last post by Lentamentalisk
Sat Feb 21, 2009 4:26 pm
Blow forward Breech Concept Redesign

Last post by thedeathofall
Replies: 11
by thedeathofall » Wed Feb 11, 2009 9:50 pm

First post

Okay, so I really like Jack's original blow-forward design, even if he doesn't, but it has a few flaws.

First of all, very few people are as in...

Last post

@littlebro

While i am still working on this, I have instead decided to base a few guns around a different design. (closer to what Jack said) This is...

11 Replies

2724 Views

Last post by thedeathofall
Sat Feb 21, 2009 1:10 pm
Entrapment?

Last post by psycix
Replies: 16
by sputnick » Thu Feb 19, 2009 6:50 pm
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Hey everyone,

About 3 days ago I posted an add in craigslist for anyone who would be willing to let me collect the compressor from a fridge they...

Last post

Just tell him you will be hiring a professional to do it.
It would be the best thing to actually do that, (if you let them keep the freon they should...
16 Replies

4833 Views

Last post by psycix
Fri Feb 20, 2009 5:05 pm
my first piston valve

Last post by ramses
Replies: 7
by sniper hero » Sat Feb 14, 2009 9:39 am

First post

I made today a piston valve I planned to make quite a while.
I had to deconstruct one of my guns but it's no problem for me

specs:
the piston is...

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nice gun! you would definitely get better performance if you enlarged the porting on the piston valve.

can I ask how you got whatever you used for...

7 Replies

2698 Views

Last post by ramses
Fri Feb 20, 2009 3:33 pm
Nerf Vortec Magizine

Last post by ssgnort
Replies: 8
by ssgnort » Mon Feb 16, 2009 11:10 pm

First post

Figured i would pic ya'll brains on this one.

My set up is a 2 barrel nerf launcher for paintball. 1 rain bird valve ( love that thing, better then...

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Yea a magizine will be huge. The blow forward bolt works great now. Just hand loading ammo is a pain. Was thinking of taking a lock lid box and...

8 Replies

2164 Views

Last post by ssgnort
Thu Feb 19, 2009 11:52 pm
Co-axial barrel options

Last post by trigun
Replies: 12
by trigun » Mon Feb 16, 2009 9:18 pm

First post

I am building my Co-axial. So far i have 6' feet of 4 inch sch.40. Am i trying to decide on a 1.5 inch barrel or a 2 barrel. Opinions on that one...

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Thank you combustion monkey just wanted to make sure i was actually thinking taping the barrel but still putting primer on it. This would allow me to...

12 Replies

2547 Views

Last post by trigun
Thu Feb 19, 2009 10:57 pm
PVR-31mm "The 2-Hour Cannon"

Last post by woden the awsome
Replies: 27
by Killjoy » Mon Nov 12, 2007 1:45 am
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Well I decided to try my hand at a piston valve again. As I usually do, I wanted a challenge, so I wanted to see the shortest time in which I could...

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I've built a canon similar to that. Yours looks pretty sick and well put together! You should put a support at the end of the barrel and air tank for...
27 Replies

10026 Views

Last post by woden the awsome
Thu Feb 19, 2009 10:24 pm
New-Found Instructable

Last post by john bunsenburner
Replies: 2
by SpudsMcGee » Thu Feb 19, 2009 3:41 pm

First post

I have been surfing the internet, I have Bronchitis... And I found this, it looks cool and easy.

Not to long ago, there was a thread about fletchete...

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Its been in my sig a few months ago, yes this is a simple hammer valve, the instructavle has been up as long as i can think back...Helps though,...

2 Replies

1137 Views

Last post by john bunsenburner
Thu Feb 19, 2009 5:04 pm
Most Efficient Piston Valve?

Last post by sv490665
Replies: 29
by sv490665 » Tue Feb 17, 2009 6:27 pm
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:idea: THEORY: I thought of this design for a piston valve, then searched around to see if anyone has done something quite like this and I didn't...

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The air piloted piston can never be as good as a sear released one, simple as that.

Thank you, that's the answer I was looking for. And I agree, in...
29 Replies

10371 Views

Last post by sv490665
Thu Feb 19, 2009 12:21 pm
My Piston

Last post by john bunsenburner
Replies: 6
by jor2daje » Thu Feb 19, 2009 12:18 am

First post

So i decided to make my own large-ish coaxial, this is my first try at a semi big piston.

Just wondering if you think this piston will work, the gun...

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maybe you could cout an O-ring so it has a little p on one side and slide it over the barrel, this too would needs replacement but like this you...

6 Replies

1284 Views

Last post by john bunsenburner
Thu Feb 19, 2009 4:41 am
Where to find the tap to accept schrader core?

Last post by newcomer
Replies: 8
by newcomer » Tue Feb 17, 2009 11:44 pm

First post

The internal thread to accept a schrader is as follows:

Metric: 5.30 mm OD x 0.706 mm pitch
English: 0.209 in OD x 36 tpi

I've been looking for...

Last post

Hi Ralph think I found it. USD38 for a tap!

Look under Vg 5, there're two actually. One of them is called spiral flute, have no idea what that means.

8 Replies

8430 Views

Last post by newcomer
Wed Feb 18, 2009 8:02 am
My first Pneumatic - Please give advice

Last post by rikukiakuchiki777
Replies: 11
by rikukiakuchiki777 » Thu Feb 12, 2009 4:56 am

First post

Hey fellow spudfilians!

I plan on making my first pneumatic marble/paint ball gun. I've researched around, and i don't like with most piston valves...

Last post

I had a look at some hammer valves, they seem a lot simpler and frankly easier to make. I'm considering replacing the HEAR valve with a hammer valve...

11 Replies

3118 Views

Last post by rikukiakuchiki777
Wed Feb 18, 2009 4:45 am
air compressor with check valve?

Last post by daniel323
Replies: 6
by daniel323 » Tue Feb 17, 2009 10:25 pm

First post

hey

I have a small air compressor that plugs into a basic power outlet. I was wondering instead of making a 300 psi stirrup pump, could i put a...

Last post

yeah i think im just goin to build a stirrup pump

6 Replies

1691 Views

Last post by daniel323
Tue Feb 17, 2009 11:08 pm
what can be used

Last post by Gippeto
Replies: 11
by tape fist » Mon Feb 16, 2009 8:25 pm

First post

what can be used to lube a piston that an average person would have lying around there house?Thanks for your help

Last post

I've used lithium grease and silicone grease for piston lube. Both work excellent.

Silicone grease can be found at the automotive parts counter as...

11 Replies

2618 Views

Last post by Gippeto
Tue Feb 17, 2009 7:40 pm
Snipalux by X3

Last post by jackssmirkingrevenge
Replies: 12
by -X3- » Tue Feb 17, 2009 4:43 pm

First post

Hello everybody, I'm X3, from France and I will show you my home made airgun, inspired by all creations seen here !

Quick description :
- pressure...

Last post

I can't fault your workmanship but it's a real pity about the terribly inefficient design. Ergonomics are important but in this case it's probably...

12 Replies

6447 Views

Last post by jackssmirkingrevenge
Tue Feb 17, 2009 7:37 pm
Compression Fittings

Last post by thedeathofall
Replies: 7
by thedeathofall » Tue Feb 17, 2009 2:58 pm

First post

Okay guys, stupid question time.

Before I try to blow myself up, are compression fittings pressure rated? I haven't seen much about them, and the...

Last post

i'm not gonna pressurize it past 120 psi anyway..

7 Replies

1914 Views

Last post by thedeathofall
Tue Feb 17, 2009 4:11 pm
Breach loading

Last post by psycix
Replies: 1
by ralphd » Mon Feb 16, 2009 9:31 pm

First post

For my breech loading launcher I plan to drill a hole big enough for a tennis ball to be loaded in the barrel and have a sleeve made from a piece of...

Last post

;)

Making sure it is tight (duct tape) or even better: o-rings will stop leakage.
Note that even if there is a tiny bit of leakage, this is...

1 Replies

974 Views

Last post by psycix
Tue Feb 17, 2009 3:50 pm
1.5 piston coax

Last post by jonnyboy
Replies: 23
by jonnyboy » Sun Feb 15, 2009 6:03 pm
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This is my first working piston gun. The chamber is 1.5 inch pvc and the barrel is .75 inch pvc. The gun was designed to shoot primarily empty co2...

Last post

his expression was priceless. He said why do you need one it's the middle of winter?
So what did you answer to that? :lol:

Good luck on the epoxy....
23 Replies

9919 Views

Last post by jonnyboy
Tue Feb 17, 2009 3:09 pm
taking a shot ...

Last post by MRR
Replies: 4
by tape fist » Sun Feb 15, 2009 3:48 am

First post

I`ve only experimented with PVC pneumatic cannons and wanted to broaden my horizons and make a copper one.I was wondering by what you see in my...

Last post

That's pretty the same gun that i build. I always had trouble with the ,full body, hot glue piston and a blow gun. It simply didn't produced enough...

4 Replies

1826 Views

Last post by MRR
Tue Feb 17, 2009 2:58 pm

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