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

1201451 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

604828 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

857705 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

1020782 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

392550 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

100037 Views

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

Topics

1 1/2 inch piston valve

Last post by MrCrowley
Replies: 12
by SpudUke5 » Sat Oct 20, 2007 10:52 pm

First post

Well i am about to finish my first piston valve. This will be my fist working one, i hope. The reason why it is small is because home depot (which i...

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Well i've made a piston for a small 1 co-ax, I glued the face on like you did. It didn't get ripped off at pressures around 120psi.

My bigger gun,...

12 Replies

3743 Views

Last post by MrCrowley
Sun Oct 21, 2007 5:33 pm
QEV-75M

Last post by frocksie
Replies: 15
by frocksie » Fri Oct 19, 2007 10:06 pm
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I just finished this QEV gun today, and it is really impressive, even more impressive than my first piston valve.

SPECS
valve : 3/4 in QEV from...

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I did mod the blowgun, but the flow wasn't high enough. There is no comparison between the blowgun and ball valve. Today I put a nail through a...
15 Replies

7239 Views

Last post by frocksie
Sun Oct 21, 2007 4:37 pm
Re design of 1 1/2 inch piston and housing Tee

Last post by MrCrowley
Replies: 7
by SpudUke5 » Sun Oct 21, 2007 12:11 pm

First post

Well if you didnt notice my other post, i made a 1 1/2 inch piston which now doesnt work. But im not stopping there. I am going to recast and...

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All I can say, is keep your old setup, the piston housing is fine, the piston that you made isn't. All you need to do is adapt the piston to your...

7 Replies

2873 Views

Last post by MrCrowley
Sun Oct 21, 2007 4:30 pm
mortar

Last post by DYI
Replies: 12
by koolaidman » Sun Oct 14, 2007 10:25 am

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hey i thought of a kinda neat idea on how to make a realistic mortar. id start of with the launching tube which could be as simple as 3' of 1.5 with...

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The thin aluminum from pop cans is a great material for discs (it bursts around 250 psi in a 1.5 union), but it is a real b*tch to get it sealed,...

12 Replies

4873 Views

Last post by DYI
Sun Oct 21, 2007 4:05 pm
Why Won't My Piston Cannon Work?

Last post by battlemonkey
Replies: 20
by watto » Fri Oct 19, 2007 8:31 pm
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I finished my first piston gun yesterday and I gave it a go this morning but it was a complete failure. When you fill it with air the piston seals...

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Never seen one of those before
20 Replies

5741 Views

Last post by battlemonkey
Sun Oct 21, 2007 2:07 pm
Do I have this right?

Last post by origin unknown
Replies: 27
by dapallox1 » Thu Oct 18, 2007 1:52 pm
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This is how I'm going to make my piston... do it have it right? oh, I forgot to show that it is in a 4 tee. And is there a 3 1/2 to 2 coupling like...

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This is another good valve, just wrap the endcap in tape to get a better fit:
27 Replies

6815 Views

Last post by origin unknown
Sun Oct 21, 2007 12:12 pm
How does a piston gets 'sucked' back?

Last post by Hawkeye
Replies: 4
by Tsukiten » Sun Oct 21, 2007 8:50 am

First post

Okays, I've recently started on making a piston-valve gun, but there's something bothering me... What makes the piston gets 'sucked' back so that it...

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Of course. The piston is either an imperfect fit or there is a small hole or groove in the side of the piston to let the air past it when filling.

4 Replies

1487 Views

Last post by Hawkeye
Sun Oct 21, 2007 10:15 am
steel co2 barrel sealing cannon design help

Last post by jackssmirkingrevenge
Replies: 10
by daccel » Fri Oct 12, 2007 1:53 am

First post

I’ve made a few ball/sprinkler valve pvc pneumatics before and I’m working on a co2 piston valve design now. The goals for this design are...

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Another question that just occurred to me, with the suppressor on the barrel will a suppressor on the exhaust be necessary/useful?

I think chaos...

10 Replies

3442 Views

Last post by jackssmirkingrevenge
Sun Oct 21, 2007 2:01 am
check me out, my new rifle, its call a ten-15!!!!

Last post by ammosmoke
Replies: 11
by pnematicrookie » Fri Oct 19, 2007 9:10 am

First post

my first pneumatic kinda sucked so i didn't post it, my second on was alright, i might post it, but i feel like this is my first real one, tell me...

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It really has a unique look to it. I like it. I wish I didn't live in the city sometimes.... Then I would be making bigger cannons. As of now I only...

11 Replies

6909 Views

Last post by ammosmoke
Sat Oct 20, 2007 6:12 pm
Sprinkler valve Question

Last post by Pyr0man1ac
Replies: 7
by Pyr0man1ac » Sat Oct 20, 2007 12:33 pm

First post

Is it alright to use a sprinkler valve on its side? does it lose any power or anything? I wanted to put 2 on their sides so that I can easily connect...

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Well, they are both 1 orbit valves... i realized after i modded them that i should have gotten bigger valves, but I cant send them back now. good to...

7 Replies

3056 Views

Last post by Pyr0man1ac
Sat Oct 20, 2007 5:24 pm
Large caliber bbmg unregulated CO2

Last post by ammosmoke
Replies: 33
by Brian the brain » Tue Oct 16, 2007 10:46 am
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This is hopefully my next project.
A 9 or 10 mm ultimate inline made out of galvanised steel pipe fittings, a pressure washer handle and unregulated...

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Well, I realize that.......That is why I was suggesting using an actual venturi tube!!
33 Replies

14088 Views

Last post by ammosmoke
Sat Oct 20, 2007 12:42 pm
Question on Distance i Should Expect, GGDT seems unreasanabl

Last post by bruno6491
Replies: 14
by bruno6491 » Fri Oct 19, 2007 3:35 pm

First post

I have a a air cannon that i want to change a barrel from a 2 to 3 piece. I currently have a 7ft piece and would make the 3 8-9ft long as well.

My...

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thanks so much, i am learning why this is not as powerful and also the pumpkins are fairly light, like a 120 grams, so they should be capable of...

14 Replies

3652 Views

Last post by bruno6491
Sat Oct 20, 2007 10:46 am
ARC-v2.0

Last post by )DEMON(
Replies: 23
by )DEMON( » Thu May 10, 2007 2:42 pm
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This is my cannon, the ARC. I made it a while ago out of spare parts and make shift fittings just to have a little fun. It was ghetto but it was...

Last post

Thanks, welcome to spudfiles :)
23 Replies

9428 Views

Last post by )DEMON(
Sat Oct 20, 2007 8:43 am
GGDT wont work

Last post by jackssmirkingrevenge
Replies: 6
by ShowNoMercy » Fri Oct 19, 2007 11:25 pm

First post

I was just wondering if anyone would be so kind enough to run some numbers in GGDT for me. My computer is not able to run the program for some reason...

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But you think a four foot barrel would be good?

Make it as long as is practical, you can go up to 11 feet and still be gaining performance.

6 Replies

1381 Views

Last post by jackssmirkingrevenge
Sat Oct 20, 2007 12:55 am
Looking to get into pneumatic spud gunning

Last post by battlemonkey
Replies: 3
by Lan » Fri Oct 19, 2007 8:35 pm

First post

Well, to start off, I felt it was time to add some spud gunning to my life so I looked around on the net and thought this would be a good place to...

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defintily get into pneumatics. they save so much time and work 99.9% of the time. u dont have to mod your sprinkler valve straight away, it works...

3 Replies

1791 Views

Last post by battlemonkey
Sat Oct 20, 2007 12:34 am
small bore piston.

Last post by Marco321
Replies: 1
by Mr.Russ » Fri Oct 19, 2007 9:33 pm

First post

im making a 15mm barrel sealing piston gun, with an 8mm (O.D 10mm)aluminium barrel.

i just have one question. How am i going to get the barrel to...

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You need surface area for the glue to stick, so here is my suggestion. Make 2 pvc washers to go around barrel and inside the 15mm pipe. Then, epoxy...

1 Replies

1149 Views

Last post by Marco321
Fri Oct 19, 2007 9:59 pm
DWV Piston; Safe?

Last post by c19o
Replies: 3
by BOMBOMBOMB » Fri Oct 19, 2007 8:02 pm

First post

ok i have a Dwv peice if pipe and its perfect for my piston is it possible to use it for the piston? cheers Nato

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Make sure you have a good bumper, I shattered 2 pistons so far (the one in my pic) because I forgot the bumper. :lol:

3 Replies

1930 Views

Last post by c19o
Fri Oct 19, 2007 9:08 pm
Propane powered bbmg has no power

Last post by Fnord
Replies: 16
by c19o » Thu Oct 18, 2007 7:12 pm
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Today I bought a propane adapter and mounted one of those disposable propane canisters on my bbmg. It had one very short powerful burst but then
it...

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^
That's actually a good idea, but it may be cheaper to go with a 160psi pop-off valve and a ball valve to shut off the flow to the buffer.
I don't...
16 Replies

6429 Views

Last post by Fnord
Fri Oct 19, 2007 11:29 am
Test plugs

Last post by EGOed
Replies: 16
by EGOed » Thu Oct 18, 2007 2:25 pm
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Has anyone ever tried using test plugs for a removable plug in a tee , for use as a rear breach load for a sprinkler valve cannon ?..... This would...

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I agree with William and definitely wouldnt try using these test plugs for anything other than what I intend to use it for which is a simple breach...
16 Replies

8679 Views

Last post by EGOed
Fri Oct 19, 2007 11:01 am
The SF marking challenge CHALLENGE

Last post by BOMBOMBOMB
Replies: 40
by BOMBOMBOMB » Tue Oct 16, 2007 2:58 am
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Ok well ive always seen these posts about challenge: Best Power or
Challenge: Best accuracy. But what i havnt seen is the coolest style/ Paint...

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Lol haha thats really mean its not his fault hes a teachers pet its the teachers... everything shoul dbe blamed on teachers
Cheers Nato
40 Replies

15267 Views

Last post by BOMBOMBOMB
Thu Oct 18, 2007 1:20 am
Piston Valve Question

Last post by MrCrowley
Replies: 18
by dapallox1 » Wed Oct 17, 2007 1:25 pm
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Which is better, a barrel sealing piston valve, or chamber sealing?

Last post

Which one opens faster depends on this size of the piston and piston seat

Also weight of the piston, size of pilot chamber, pilot valve flow...
18 Replies

4404 Views

Last post by MrCrowley
Wed Oct 17, 2007 11:12 pm
C19O's First Barrel Sealing Valve in a Tee - 1.5" Porti

Last post by dapallox1
Replies: 13
by c19o » Tue Mar 27, 2007 11:21 pm

First post

Here's my First Barrel Sealing Valve in a Tee. Its got 1.5 porting and o-rings on the piston. I didn't use a lathe for the o-rings :P
I'll soon put...

Last post

Oh! Okay, I think I get it now. Thanks! :) Oh, and I meant 2 .

13 Replies

3417 Views

Last post by dapallox1
Wed Oct 17, 2007 9:59 pm
Timer circuit/555 board

Last post by Marco321
Replies: 18
by ShowNoMercy » Mon Oct 15, 2007 7:20 pm
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Its kind of early to be posting this since I get my parts on the 18th but I have made a prototype of a bolt actuated paint ball gun similar to an...

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marco;

Are you referring to what is called cascading timers?
The three timers would be set up as monostable operation.

Note: The times of duration...
18 Replies

6600 Views

Last post by Marco321
Wed Oct 17, 2007 8:37 pm
My MBMR's silencer:) now with test video

Last post by mtronic
Replies: 24
by mtronic » Thu Oct 11, 2007 6:19 am
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well this is the silencer for the MBMR. I use it on the shorty barrel because it needed it the most and on the 29 er it sagged so i have to make a...

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Still, it does look like a massive cock eh? Very Happy Talk about phallic symbols hehe
:lol: I totally missed that one, but now you mention...
24 Replies

6404 Views

Last post by mtronic
Wed Oct 17, 2007 6:30 pm
Mythbusters and Their Cannons

Last post by miskaman
Replies: 30
by miskaman » Mon Oct 08, 2007 10:06 pm
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Was watching a show one time and I saw a cannon Jamie whipped up to go shoot a net at the pigeons outside because they were getting on his nerves. It...

Last post

So I took apart the net I made and attached another golf ball in the middle of the net. Also tied in a lot more rope almost 40 foot of 3/16 nylon in...
30 Replies

12623 Views

Last post by miskaman
Wed Oct 17, 2007 5:46 pm

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Pneumatic Cannons

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