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

893022 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

434381 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

366542 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

611864 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

325951 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

77387 Views

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

Topics

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

3591 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...

Last post

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

4227 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

3333 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?

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

4183 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

3875 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

7437 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...

Last post

yep, i taped mine in and it works great

4 Replies

1506 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

8894 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

7619 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...

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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

2797 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 ....

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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

1921 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

7416 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

Last post

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

3 Replies

1783 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

2155 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...

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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

4697 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

3394 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

1987 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

7570 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...

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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

2818 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

4316 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

4409 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

4086 Views

Last post by DYI
Fri Nov 09, 2007 9:05 pm
.40 cal Blowgun darts

Last post by Zen///
Replies: 7
by VH_man » Fri Nov 09, 2007 7:58 am

First post

Well, im looking into a new cannon and it seems as if making my own darts is tedious and annoying. i am willing to pay the extra money for...

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Ive not really ever used these darts but for a backstop i might suggest ballistics gel. If you have good aim, because i usually make it small and the...

7 Replies

2097 Views

Last post by Zen///
Fri Nov 09, 2007 7:08 pm
Double Shot (High Pressure Mini)

Last post by jackssmirkingrevenge
Replies: 78
by Novacastrian » Wed Oct 31, 2007 1:22 am
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Hey airheads, following on from the failure/stupidity of my last attempt to make a high pressure .50 calibre piston coaxial i decided to up the anti...

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I don't mind it to get the extra performance, but then again, just because I'm an efficiency Nazi, it doesn't mean everyone else has to be :)
78 Replies

21591 Views

Last post by jackssmirkingrevenge
Fri Nov 09, 2007 5:20 pm
help with coaxial

Last post by shud_b_rite
Replies: 8
by bob-a-lu » Thu Nov 08, 2007 8:48 pm

First post

for my sealing face could i use a whoopie cushion?

Last post

Go to a tire shop they should be able to give you some inner tubes for free. Stuff paying $15. Me and my mates when to one and got 6 huge second hand...

8 Replies

2131 Views

Last post by shud_b_rite
Thu Nov 08, 2007 11:54 pm

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