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

1201463 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

604833 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

857714 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

1020787 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

392553 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

100038 Views

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

Topics

Pure Energy Tank

Last post by ShowNoMercy
Replies: 10
by ShowNoMercy » Tue Nov 13, 2007 5:07 pm

First post

I just got a 3000psi HPA tank, 68 cu made by pure energy and I was wondering if anyone knew what it is regged down to? And also if I can use a C02...

Last post

Thanks man, kinda was waiting for you to post.

10 Replies

2722 Views

Last post by ShowNoMercy
Tue Nov 13, 2007 8:50 pm
pneumatic ram design

Last post by DYI
Replies: 10
by daccel » Sat Nov 10, 2007 2:23 am

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I've been thinking about high pressure too much lately :) . I found a few threads discussing pneumatic rams to increase the performance of small...

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You do realise that the length of rams you need will completely ruin any chance of portability unless you have seamless pipe with and ID of over 3...

10 Replies

4047 Views

Last post by DYI
Tue Nov 13, 2007 4:46 pm
Sprinkler Valve Issue

Last post by EGOed
Replies: 29
by Davidvaini » Sat Nov 10, 2007 10:14 pm
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Alright this is pretty much pissn me off.

My friend and I have a problem with our cannon. We've tried pretty much everything but we keep getting a...

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Yeah william, unfortunately I saw your mod program after I started modding valves....Too bad cause it would have saved me some head scratching trying...
29 Replies

11056 Views

Last post by EGOed
Tue Nov 13, 2007 12:28 pm
Pneumatic noob question.

Last post by jimmy101
Replies: 11
by NatoHub » Mon Nov 12, 2007 5:53 pm

First post

Sorry if this is in the wrong spot (I already had a look at the spud Wiki btw).
I already have a 2 Combustion cannon. I'm a Pneumatic Pneub but would...

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Like others have said, definitely go with the sprinkler valve instead of the ball valve.

You don't have to mod the sprinkler valve right away. Fire...

11 Replies

3934 Views

Last post by jimmy101
Tue Nov 13, 2007 12:11 pm
Dual Valves

Last post by EGOed
Replies: 19
by ShowNoMercy » Mon Nov 12, 2007 11:01 pm
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I have two sprinkler valves sitting around and I have a large section of both 2 PVC and 3/4 CPVC, so my plan is to make a chamber out of the two inch...

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I would just build a Tank so I dont have to carry anything :lol:
19 Replies

4479 Views

Last post by EGOed
Tue Nov 13, 2007 10:47 am
Preventing PVC brittleness in winter

Last post by psycix
Replies: 13
by JDP12 » Wed Nov 07, 2007 8:29 am

First post

Hey all, well it's winter time, and i can't fire my rifle outdoors, but i still want to shoot it. My house is surrounded by 17 acres of woods, that...

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Have your grandma knit a nice woolen clothpiece for your cannon to keep it warm :D

13 Replies

3550 Views

Last post by psycix
Tue Nov 13, 2007 10:11 am
diaghram wont seal

Last post by jon_89
Replies: 22
by jon_89 » Mon Nov 05, 2007 9:07 pm
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i just finished my coaxial and the air goes right through the barrel. what is the problem?

Last post

i have no idea thats why i am asking.
22 Replies

4354 Views

Last post by jon_89
Tue Nov 13, 2007 1:41 am
mini coaxial

Last post by jackssmirkingrevenge
Replies: 17
by FordGtMan » Mon Nov 12, 2007 11:47 pm
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Hi everyone, im new here so i have some questions...
Im halfway in the making of my mini coaxial and i have some presta valves laying around from...

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As long as it's glued on well, then I guess it's ok - but you might have to service it after prolonged use.
17 Replies

4524 Views

Last post by jackssmirkingrevenge
Tue Nov 13, 2007 12:42 am
Paintball Grenade Launcher

Last post by EGOed
Replies: 19
by Mihlrad » Sun Nov 11, 2007 9:06 pm
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Hey guys, its been a while since i been here but i played paintball outdoors today for the first time in years and now i wanna get back into it. I...

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Many fields wont allow you to use PVC air chambers on your launcher at all ....I allow them at my field but you must have a safety pop off valve...
19 Replies

8050 Views

Last post by EGOed
Mon Nov 12, 2007 7:55 pm
teflon tape

Last post by sandman
Replies: 4
by elitesniper » Mon Nov 12, 2007 2:57 pm

First post

is it ok for me to teflon tape my male adpater thread then screw it on the sprinkler valve tightly? i have done so and have 100% no leeks anywhere on...

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yep, i taped mine in and it works great

4 Replies

2287 Views

Last post by sandman
Mon Nov 12, 2007 5:57 pm
threded schrader valves in oz

Last post by avlaxmidi09
Replies: 27
by The Kid » Tue Oct 30, 2007 6:41 am
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so far i've looked in one hardwere store, two auto shops an, enginering shops and one tire store and havent found a threaded tire valve. i'm just...

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haha ya i know what you mean, my friend and i were like wow im surprised he didnt say uhhhh......a dollar.
27 Replies

9287 Views

Last post by avlaxmidi09
Mon Nov 12, 2007 7:44 am
T- Shirt Cannon

Last post by MrCrowley
Replies: 19
by turbohacker » Wed Apr 25, 2007 8:12 pm
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I Built this gun for my school a cople of months ago to fire t shirts into the crowd at sporting events (hence the miners sticker on the side) I has...

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It's fine to post in old topics like this, as long as your asking a sensible question :P
19 Replies

9256 Views

Last post by MrCrowley
Mon Nov 12, 2007 12:47 am
Inline Gun, TF2 replica

Last post by Eddbot
Replies: 9
by Panzerfaust » Sun Nov 11, 2007 5:48 pm

First post

Okay, now that Team Fortress 2 is out, i have this idea of replicating its rocket launcher stuck in my head, When projects get stuck in my head they...

Last post

i have that same problem, except most of the time i realize it's outside of my capabilities and/or resources, i will now draw the process in which...

9 Replies

3416 Views

Last post by Eddbot
Sun Nov 11, 2007 10:11 pm
New gun question

Last post by cwazy1
Replies: 4
by Rogue » Sun Nov 11, 2007 11:19 am

First post

Ok, after 2.5 hours at home depot i got all my stuff to make a 2 id 3'long chamber and a 5 ft long 1.25 inch barrel and all that that Jazz(lol) :D ....

Last post

when dealing with pvc/abs lube/grease, , best is to use white lithium grease. its 3$ for a caulk tube full of it (you dont have to use the caulk...

4 Replies

2036 Views

Last post by cwazy1
Sun Nov 11, 2007 6:09 pm
What are Safe PVC Temperatures?

Last post by Panzerfaust
Replies: 16
by TheTrooper » Sat Nov 10, 2007 12:59 pm
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Hey, since winter is already here and its getting colder and colder each day, I just want to know the safe operating temperatures of PVC (hot and...

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This increased brittleness is temporary right? im leaving my guns in the garage for the winter, i wont be using them, but i dont want the cold to...
16 Replies

8036 Views

Last post by Panzerfaust
Sun Nov 11, 2007 5:08 pm
12$ *PRE* modded valve amazon

Last post by PCGUY
Replies: 3
by joemama » Sat Nov 10, 2007 11:54 pm

First post

corect me if im wrong... the bleed lever acts at the valve or Manual on/off bypass lever

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It sucks trust me, I have tried to fire via that switch before... it works worse than putting power to the solenoid.

3 Replies

1890 Views

Last post by PCGUY
Sun Nov 11, 2007 1:45 am
piston not working

Last post by SpudUke5
Replies: 7
by bob-a-lu » Sat Nov 10, 2007 6:06 pm

First post

ok im making a piston coaxial but its not working the air just leaks through the barrel. for my piston im using a 1 1/4 end cap and for the sealing...

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You mean the pic? its a inner tube, except for a tire. This is what i used on my piston and it works great too.

And good for you!! you finally got...

7 Replies

2598 Views

Last post by SpudUke5
Sat Nov 10, 2007 10:58 pm
ball valve gun

Last post by MrCrowley
Replies: 14
by cambot339 » Sat Nov 10, 2007 4:19 pm

First post

I know all you punks be hating ball valves but this is my first gun, future projects might have piston. Here are some pics. A 3/4 cpvc barrel, 2...

Last post

ok the new barrel is up now its 50 long and still 3/4 wide

its a ball valve and i cant find any thing on the search

We do have a fair amount on...

14 Replies

4842 Views

Last post by MrCrowley
Sat Nov 10, 2007 9:24 pm
pvc type

Last post by DYI
Replies: 10
by elitesniper » Sat Nov 10, 2007 12:19 am

First post

um guys i have a question um. lets say i all i have is 2 inch pvc and my chamber is the same size as my barrel , so on my gun theres like a three...

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PW= potable water, NOT pressure water. PW and DWV are sanitary ratings, nothing to do with pressure. (but when you think about it, all drinking water...

10 Replies

3690 Views

Last post by DYI
Sat Nov 10, 2007 4:31 pm
T70 Pneumatic launcher

Last post by MrCrowley
Replies: 4
by Mac/pistol man » Sat Nov 10, 2007 10:30 am

First post

Hey guys,
I am planning on building something similar to this :

And I am wondering how I could get a good firing mechanism to work on it.
I think...

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Gotta love that DWV Bell reducer on the cannon :wink: Don't make the same mistake

4 Replies

2104 Views

Last post by MrCrowley
Sat Nov 10, 2007 3:31 pm
several questions abuot QEVs....

Last post by POLAND_SPUD
Replies: 21
by POLAND_SPUD » Sun Nov 04, 2007 3:55 pm
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Hi, I am new here but I have some experience in building pneumatic spudguns (mostly 1/2 inch steel pipes and fittings and i normally pump them to 250...

Last post

When i try shaking mine it rattles too... try to attach air hose to it and see wheather it can pump to some pressure.
21 Replies

7819 Views

Last post by POLAND_SPUD
Sat Nov 10, 2007 1:40 pm
Copper questions

Last post by Hawkeye
Replies: 9
by veginator » Fri Nov 09, 2007 9:50 pm

First post

I have a few questions about copper pipe.

1.Is it better to epoxy or solder pipe?

2.Do I have to use a torch or can I use soldering iron if I have...

Last post

Why don't you just take it off if you know how many strokes of the pump equals a particular psi? I just temporarily attached a shock pump to a...

9 Replies

3003 Views

Last post by Hawkeye
Sat Nov 10, 2007 11:45 am
Bolt Action Release

Last post by Tom
Replies: 18
by ryan_1172 » Fri Nov 09, 2007 1:39 pm
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has anyone ever heard of using a bolt action, like on a rifle, for a release valve? I have thought about this quite a bit over the last 24 hours, and...

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I'm working to improve his BS-2 with a higher ROF :D. I was also wondering has some one else made a valve like this one(hammer valve)
GR.Tom
18 Replies

4460 Views

Last post by Tom
Sat Nov 10, 2007 8:15 am
Drag coefficient of a shaved tennis ball?? ARG :(

Last post by POLAND_SPUD
Replies: 10
by halfsquelch » Fri Nov 09, 2007 8:53 pm

First post

I am trying to find the drag coefficient of a shaved tennis ball. The drag coefficient of a regular tennis ball is .55 but i cant figure it out for a...

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ohh... sorry DYI.... :oops: It was writing it at 5 AM and.... :roll:
I wasn't suggesting range shooting - I said that your spudgun would fire further...

10 Replies

4947 Views

Last post by POLAND_SPUD
Sat Nov 10, 2007 7:06 am
Barrel length for max range? Need help!!

Last post by DYI
Replies: 14
by halfsquelch » Fri Nov 09, 2007 2:38 am

First post

I have a quick question. I am making a tennis ball cannon and would like to find out how long I need to make the barrel to achieve maximum range. The...

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3,212.2 ft lbs of muzzle energy. Thats more than a ton and a half. I couldn't even hold on to that, and I am a big guy

If I'm right, then muzzle...

14 Replies

4330 Views

Last post by DYI
Fri Nov 09, 2007 9:05 pm

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