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

926112 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

452239 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

456109 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...

Last post

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

635760 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

332149 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

80195 Views

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

Topics

Un-Regulated CO2

Last post by Lockednloaded
Replies: 10
by Lockednloaded » Sat Nov 13, 2010 8:19 pm

First post

For me, un-regged co2 is my only source of high pressure in pneumatic, but I'm not sure what parts can handle it.

QEVs have been used way above...

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That's really good to know jeepkhan, looks like you're saving me a lot of money on co2 as well as efficiency. I recently came into possesion of a...

10 Replies

5216 Views

Last post by Lockednloaded
Fri Jan 21, 2011 2:47 pm
VARGAS Nitrogen (inert gas) powered cartridge gun system.

Last post by jackssmirkingrevenge
Replies: 67
by jagerbond » Mon Jun 28, 2010 3:01 pm
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VARGAS is designed to be a kinetic energy device cartridge system for less lethal applications. Cartridges are designed to be used across a platform...

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You'd need to get some extra energy to cycle it or have it a repeater rather than automated.

I doubt that chunky cartridge would cycle reliably as...
67 Replies

22232 Views

Last post by jackssmirkingrevenge
Fri Jan 21, 2011 12:03 am
Sealing pipe threads

Last post by Lockednloaded
Replies: 10
by tyrant_bb » Thu Jan 20, 2011 1:41 pm

First post

To seal pipe threads, especially steel, I have to put it in a vice and then use a huge pipe wrench to really apply force until it finally seals. The...

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as long as you're applying the tape correctly, It will work on even large diameter steel fittings. I've never had one leak on me with properly...

10 Replies

3871 Views

Last post by Lockednloaded
Thu Jan 20, 2011 8:05 pm
Yet Another PVC vs. ABS Safety Question

Last post by Technician1002
Replies: 3
by NathanF » Thu Jan 20, 2011 1:40 am

First post

Hello All, new to the forum. Built a few simple hair spray combustion guns in my time, and looking to build a pneumatic gun now. Been working on a...

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I've done some pressure testing of the not rated for pressure ABS. Since the two layers on the foam core are both thicker than the skin of a 2 liter...

3 Replies

11767 Views

Last post by Technician1002
Thu Jan 20, 2011 11:19 am
air tanks

Last post by Technician1002
Replies: 4
by qwert123 » Wed Jan 19, 2011 6:09 pm

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i am looking for a air tank that will hold at least 150 psi with 1 or 3/4 threads, i have seen fire extinguishers used, how well do they work? the...

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Small refillable Propane tanks have 3/4 thread in the US. They come is smaller sizes such as 1 gallon with the full size BBQ valve. Nominal working...

4 Replies

1991 Views

Last post by Technician1002
Wed Jan 19, 2011 9:20 pm
question, safe psi of glv pipe

Last post by cfb_rolley
Replies: 4
by vblock » Sun Jan 16, 2011 8:59 pm

First post

ok guys, so im making a new pnumatic airgun i was wondering what the safe working pressure of 3/4 glv pipe baught at lowes was ?

Last post

I'm sorry but I'm going to have to agree with DYI, proper spelling, grammar and questions that are a little less ambiguous are definately appreciated...

4 Replies

1941 Views

Last post by cfb_rolley
Mon Jan 17, 2011 10:27 pm
Rifled barrel?

Last post by Gippeto
Replies: 25
by wyz2285 » Thu Dec 02, 2010 4:29 pm
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Hi every body, a little question, is a rifled barrel really helps a lot on accurancy? I usually shot bbs, and it's easy to find rifled bb barrels....

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Crosman barrels are still a better deal at $25. When carefully prepped, they deliver.
25 Replies

8396 Views

Last post by Gippeto
Mon Jan 17, 2011 2:37 pm
Lever Action Shot gun

Last post by Ragnarok
Replies: 3
by sumisukyo » Sun Jan 16, 2011 2:43 pm

First post

Hey guys long time no see,
after writing my exams I went on a very long holiday with my girlfriend to Durban
got my Matrix results... I passed
Got...

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It's time for me to try and get some sleep, but this might provide ideas/answers:

3 Replies

1560 Views

Last post by Ragnarok
Sun Jan 16, 2011 4:29 pm
Charging handle

Last post by ramses
Replies: 18
by FighterAce » Fri Jul 30, 2010 2:33 pm
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I finished building my first piston valve and started working on the wood for my next rifle but already I hit a snag. I'm piloting the piston with a...

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That looks amazing! Can't wait to see it fire!
18 Replies

7059 Views

Last post by ramses
Sun Jan 16, 2011 1:50 pm
I just ordered this -

Last post by jackssmirkingrevenge
Replies: 10
by Slugfoot » Sat Jan 08, 2011 1:46 am

First post

-

1/2 old-skool qev. :D
There are still a couple left if anybody here is interested.

The brass finish and the shape attracted me.
I'm guessing it...

Last post

Update: arrived this morning, yes it's a diaphragm valve and yes the threads are bigger than 1/2 BSP, almost big enough to fit 3/4 BSP.

No problem...

10 Replies

2916 Views

Last post by jackssmirkingrevenge
Sun Jan 16, 2011 12:03 am
Blowgun or solenoid pilot

Last post by POLAND_SPUD
Replies: 10
by cfb_rolley » Fri Jan 14, 2011 1:22 am

First post

I'm thinking of trying my hand at building a pneumatic cannon again, my last one was a 30mm diameter port T piston, which worked but eventually the...

Last post

just for the sake of theory, would hooking up 2 separate 1/2 solenoid 3 way valves to the one button to open them both to dump a single pilot work...

10 Replies

4095 Views

Last post by POLAND_SPUD
Sat Jan 15, 2011 11:01 pm
alternative to a co2 regulator?

Last post by Lockednloaded
Replies: 5
by Lockednloaded » Wed Jan 12, 2011 3:12 pm

First post

I have a CO2 tank and an adaptor, but I don't really want to spend money in a regulator, so I thought a good way to get around that would be with a...

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I don't need a precise regulator, so I think this will be fine for my purposes as long as its accurate to ±10psi

5 Replies

1725 Views

Last post by Lockednloaded
Fri Jan 14, 2011 11:01 pm
First Piston cannon (full metal)

Last post by daniel0663
Replies: 24
by daniel0663 » Wed Jan 12, 2011 6:08 pm
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Greetings !

This is my first pneumatic cannon.
After much research on this fourm on how piston valves work etc.
(credits to MrCrowley and MRR on...

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@saefroch
Ohh, i understand what he means now.
Yes, i do think also that the pilot air flow would be restricted also.

Thanks.

@Gun Freak
Hmm, i...
24 Replies

8330 Views

Last post by daniel0663
Thu Jan 13, 2011 6:28 pm
Balanced Spool Valve Design

Last post by Technician1002
Replies: 8
by boyntonstu » Sat Jan 08, 2011 12:45 pm

First post

Simple, effective, cool.

Would a cross and 2 short chambers be better for flow than a T?

Last post

I have noticed that things do tighten up some as o rings hold pressure. With care, making the walls of the grooves vertical instead of on a slant...

8 Replies

5010 Views

Last post by Technician1002
Thu Jan 13, 2011 12:08 pm
Largest piston piloted by schrader?

Last post by Fnord
Replies: 21
by metalmeltr » Wed Jan 12, 2011 6:06 pm
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What is the largest piston that can be efectivly piloted by a schrader around 100psig? I tried making a coaxial of 1 and 1/2 pvc that was less than...

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My old piston hybrid could pilot via the schader. Not well , but it worked. It used orings on the 2 piston, but it was not a %100 seal.

At one...
21 Replies

6203 Views

Last post by Fnord
Thu Jan 13, 2011 11:45 am
Valve help

Last post by jackssmirkingrevenge
Replies: 38
by nadjatee1996 » Mon Jan 03, 2011 7:35 pm
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Recently, I became curious in air guns and the like, now, I need a valve similar to a Schrader valve. The Schrader valve basically ejects air if the...

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Good man, never a good idea to start at the deep end, especially if you have no previous experience with materials etc.
38 Replies

11141 Views

Last post by jackssmirkingrevenge
Wed Jan 12, 2011 12:46 pm
The Big BoyV2 [updated version]

Last post by daniel0663
Replies: 11
by MRR » Mon Aug 03, 2009 2:49 pm

First post

I've build this little beast for a friend and before I give it to him tomorrow I'd like to share it with you guys.

Data:
Type: barrel sealing...

Last post

WOW ! looks Really awesome.
Love your homemade trigger system.
Must of been expensive to make with all that brass parts.....
Where did you get the...

11 Replies

5939 Views

Last post by daniel0663
Wed Jan 12, 2011 5:24 am
sprinkler leaking through pilot exhaust when pressurized

Last post by Technician1002
Replies: 14
by mfalconer » Fri Jan 07, 2011 9:33 am

First post

Hi everyone,

I have recently built a pneumatic cannon w/ a modified blow gun attachment. However, next... I want to build a remote control cannon...

Last post

Find a shop that does hydraulics and Pneumatics. Hydraulic hoses have to be replaced often on heavy machinery along with o rings in control valves...

14 Replies

6804 Views

Last post by Technician1002
Tue Jan 11, 2011 12:44 pm
Ball Valves...

Last post by jackssmirkingrevenge
Replies: 21
by Slugfoot » Sun Jan 02, 2011 2:48 pm
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...I've heard that they can be taken apart - with difficulty. Has anyone here actually managed this? If so, what technique did you use?
I would like...

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(note: don't bother trying to post on UKSGC its totally dead, apart from, oddly enough, THUNDERLORD who appears to have been banned from spudfiles...
21 Replies

7003 Views

Last post by jackssmirkingrevenge
Tue Jan 11, 2011 1:06 am
GGDT? help from the pros?

Last post by Slugfoot
Replies: 22
by Mr.michael.2468 » Sun Jan 09, 2011 6:51 pm
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it might just be that i haven't had higher level math yet but i find GGDT rather confusing and difficult to use. i've done a lot of looking for help...

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Thanks for the help. After using my head a little, I came up with some figures which I think are reasonable.
Is there anything in the screenshot...
22 Replies

8820 Views

Last post by Slugfoot
Tue Jan 11, 2011 12:53 am
UK PVC Cannon supplies

Last post by jackssmirkingrevenge
Replies: 7
by cavemanaston » Sun Jan 09, 2011 12:54 pm

First post

I live in the south of the UK and am looking to build a second cannon using pvc but in wickes and BnQ dont seem to show any pressure rating on the...

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tennis ball size

MaxuS has a rather nice UK built tennis ball launcher but it seems to have cost a pretty penny, he says the valve alone was 80...

7 Replies

3197 Views

Last post by jackssmirkingrevenge
Sun Jan 09, 2011 6:13 pm
a little help for the new guy

Last post by Mr.michael.2468
Replies: 9
by Mr.michael.2468 » Sat Jan 08, 2011 11:56 am

First post

hello i'm kinda new to this website but i've built quite a few cannons, i have 3 cannons a combustion one, a sniper cannon and my huge spud gun, i...

Last post

i got GGDT working its pretty cool had to use my old dinosaur to run it for some reason lol

9 Replies

2481 Views

Last post by Mr.michael.2468
Sun Jan 09, 2011 2:16 pm
suppressor.

Last post by jackssmirkingrevenge
Replies: 10
by qwert123 » Sun Jan 02, 2011 3:22 pm

First post

i was wondering if anyone had success in making a suppressor for a .5 barrel, does anyone know of a good tutorial? All help is appreciated!
please...

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the point of these is to be loud :p

If you're shooting in the middle of nowhere with adequate hearing protection, why not :) but if you're testing...

10 Replies

4796 Views

Last post by jackssmirkingrevenge
Sun Jan 09, 2011 11:48 am
New here, my two cannons

Last post by Technician1002
Replies: 7
by Vaeevictiss » Fri Jan 07, 2011 5:21 pm

First post

So this one was my introduction into using sprinkler valves. I built it a couple years ago and found it worked best...with gumballs haha. I decided...

Last post

Sheer volume is a good idea, much like filling a truck tire. The rate you deliver the volume is important in air cannons. High flow is very...

7 Replies

2459 Views

Last post by Technician1002
Sun Jan 09, 2011 11:47 am
Help With Piston

Last post by jackssmirkingrevenge
Replies: 5
by thetyzonator » Sat Jan 08, 2011 4:56 pm

First post

Hello everyone! I am in the middle of making a barrel sealing piston valve cannon and have come to a bit of a bump... I need to find a piston that...

Last post

Anyone have any ideas?

Yes.

For such a relatively large chamber, the built-up approach is best:

5 Replies

1956 Views

Last post by jackssmirkingrevenge
Sun Jan 09, 2011 12:01 am

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