Pneumatic Cannons

New Topic

8160 topics

Page 117 of 327
- Jump to page:
Previous
1
…
115
116
117
118
119
…
327
Next

Announcements

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
1

2
First post

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

1125265 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
1

2

3

4

5

6
First post

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...

Last post

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

552406 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
1

2

3

4

5
First post

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

821314 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
1

…

8

9

10

11

12
First post

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

967204 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
1

2

3
First post

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...

Last post

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

374970 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

92430 Views

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

Topics

XP21 Thundersquish Tactical Marshmallow Cannon

Last post by John Conklin
Replies: 12
by John Conklin » Thu Jan 21, 2010 6:11 pm

First post

I was thinking about my grandkids’ marshmallow shooter, and started wondering If you accelerate a marshmallow to a high enough velocity, would it be...

Last post

I've been thinking about a hybrid, but first I'm going to try going supersonic with 200 PSI helium... just to see if it can be done.
I'll try the...

12 Replies

5237 Views

Last post by John Conklin
Fri Jan 22, 2010 12:55 am
300psi hammer

Last post by jackssmirkingrevenge
Replies: 1
by qwerty » Thu Jan 21, 2010 4:09 pm

First post

How strong would the hammer (not as in a nail hitting hammer) have to be to open a 300psi hammer valve with a bore of 4.5mm? would it be 300 pounds?...

Last post

No, much less.

Area of your valve is 0.0246 square inches, so the force on it is 7.38lbs

1 Replies

1588 Views

Last post by jackssmirkingrevenge
Thu Jan 21, 2010 4:11 pm
good leak fixer?

Last post by clemsonguy1125
Replies: 3
by Marffy » Wed Jan 20, 2010 11:22 pm

First post

today i finally decided to fix my leaky potato cannon with some tire slime. so i did. questions is: have you done this teqnuic? does it work well? my...

Last post

Well if thats doesnt work try some plumbers goop

3 Replies

1317 Views

Last post by clemsonguy1125
Thu Jan 21, 2010 11:50 am
Simple inline cannon

Last post by tghhs
Replies: 18
by Marffy » Mon Jan 18, 2010 12:12 am
1

2
First post

One day i wanted to make a cannon that was a total upgrade from the rest of my cannons. so i made an inline knowing that that would be the most...

Last post

The sch40 rating means that it WILL be the same size as your normal pvc pipe, as sch40 is the standard size. This means that all sch40 pices will fit...
18 Replies

11225 Views

Last post by tghhs
Thu Jan 21, 2010 7:24 am
First HP Sitrup pump

Last post by elitesniper
Replies: 6
by elitesniper » Tue Jan 19, 2010 11:39 pm

First post

Finally got around to making a pump
Machined the piston head and shaft stablizer from nylon
check valve is a marble sealing a against a...

Last post

Ive gotten it up to 400 psi for now :) washers idk just foudn em hehe

6 Replies

3055 Views

Last post by elitesniper
Thu Jan 21, 2010 12:13 am
Total noob needs advice on the next step.

Last post by MrCrowley
Replies: 44
by bullrees » Sun Jan 10, 2010 8:32 pm
1

2

3
First post

First I'd like to say in my first post that I am astonished at the level of knowledge on the website. Very impressive. Anyways..

After seeing some...

Last post

Much better pictures than the one I took :wink:
But it looks just like how I did mine. Personally i've never had it leak, but it has been known to...
44 Replies

11742 Views

Last post by MrCrowley
Tue Jan 19, 2010 11:07 pm
Backpack Cannon V2

Last post by deathbyDWV
Replies: 9
by deathbyDWV » Tue Jan 19, 2010 6:12 pm

First post

This is a cannon that I improved upon from this...

The thing on the bottom is a small hand pump... it takes a while to pump up but when i do......

Last post

The front elbow isn't actually glued on... it is the pump handle. When pushed all the way down it fits to the chamber. I might be able to get up a...

9 Replies

4493 Views

Last post by deathbyDWV
Tue Jan 19, 2010 9:04 pm
Awesome homemade nerf gun

Last post by POLAND_SPUD
Replies: 10
by Demon » Mon Jan 18, 2010 5:58 pm

First post

This is made by a guy at nerf heaven, so awesome! (not by me tough)

Last post

ready to parrot sure I am
I wasn't referring to him specifically and I do have a lot of respect for him...
He definitely isn't that kind of guy as...

10 Replies

3863 Views

Last post by POLAND_SPUD
Tue Jan 19, 2010 8:25 pm
Sneek peek of my first pistion valve gun, 4" coaxil.

Last post by Jeeperforlife
Replies: 30
by Jeeperforlife » Tue Jan 12, 2010 10:40 am
1

2

3
First post

This is the gun I was discussing in this thread.

All of the bugs are worked out. It seals and fires every time. After it warms up my wife will...

Last post

Thanks Dewey-1!

Those look great.

Now I just need to find some time to take them out and put them through some stuff.

Marcus
30 Replies

20237 Views

Last post by Jeeperforlife
Tue Jan 19, 2010 6:31 pm
Diminishing Return

Last post by jeepkahn
Replies: 14
by velocity3x » Mon Jan 18, 2010 9:10 pm

First post

I did some testing yesterday but. it wasn't on the gun I intended. A great deal of radar and high speed camera equipment with operators was made...

Last post

On the diminishing returns aspect, with heavy projectiles, once I get past 900fps, I'm happy, because it takes SO much more pressure to get so little...

14 Replies

6436 Views

Last post by jeepkahn
Tue Jan 19, 2010 4:44 pm
Full-auto

Last post by Brian the brain
Replies: 11
by CpTn_lAw » Sat Jan 16, 2010 5:31 am

First post

Hey there evryone, so I dug up an old topic I posted, about a full-auto valve prototype:
linky

In parallel, I took apart a nerf vortex gun... It...

Last post

Wouldn't changing surface area make for a higher pressure valve??
Without the use of big donkey springs?

Edit:

JSR..don't you have a Monsoon???...

11 Replies

3594 Views

Last post by Brian the brain
Tue Jan 19, 2010 4:08 pm
air rifle idea.

Last post by chinnerz
Replies: 7
by chinnerz » Mon Jan 18, 2010 3:52 am

First post

here is an idea i had from looking at a few other pictures.

the system works via a hammer hitting a pin on the barrel its self, moving the barrel...

Last post

cool, well i will look into this idea, maybe draw up a few concepts of my own

7 Replies

1585 Views

Last post by chinnerz
Mon Jan 18, 2010 7:35 pm
Which valve?

Last post by deathbyDWV
Replies: 7
by deathbyDWV » Sun Jan 17, 2010 12:49 am

First post

Alright guys...

So for my birthday this year (money time) I was thinking of building a monsterous cannon... Similar to joel's tornado simulator and...

Last post

I realize that PVC is really expensive for some, but to get a large metal tank (or two) AND a higher pressure system would be even more expensive....

7 Replies

4731 Views

Last post by deathbyDWV
Mon Jan 18, 2010 11:02 am
Co-axial+spudfies coin challenge

Last post by Lockednloaded
Replies: 9
by Lockednloaded » Sun Jan 17, 2010 4:23 pm

First post

High Pressure Mini Co-axial Smooth-Bore
I just finished this little guy, and am totally flabbergasted by its amazing performance. It is not my first...

Last post

haha whoops, but on the subject of concealed weapons and instruments, ive always wanted too make a nice copper gun in the shape of a trombone or...

9 Replies

5443 Views

Last post by Lockednloaded
Sun Jan 17, 2010 11:19 pm
Something bad happened, help needed :)

Last post by dewey-1
Replies: 4
by chinnerz » Sun Jan 17, 2010 2:21 am

First post

i was in the process of zeroing a scope when i heard a thump, my rifle didnt shoot at all after that, however i kept hearing a successful discharge...

Last post

One thing I notice is that the piston length is to short for the material used.

Make the length of the piston 3/4 to 1.5 times your inside dimension...

4 Replies

1990 Views

Last post by dewey-1
Sun Jan 17, 2010 8:48 am
QEV in GGDT

Last post by daberno123
Replies: 8
by skyjive » Sun Dec 28, 2008 7:19 pm

First post

First of all, does anyone have the GGDT specs for a McMaster 3/4 QEV? I couldn't find any, so I took one apart to measure my own, and so far I have:...

Last post

Everyone assumes a 3/4 QEV will outperform a 1 sprinkler valve based on the assumption that the QEV has a much better flow path than the sprinkler...

8 Replies

3477 Views

Last post by daberno123
Fri Jan 15, 2010 6:53 pm
Piston Valve Golf Ball Gun

Last post by clemsonguy1125
Replies: 7
by clemsonguy1125 » Thu Jan 14, 2010 7:35 pm

First post

Heres my 2 inch 1.5 port cannon. At 40 psi it shoots about 200 yards. I know I need to paint it. It has about a 4 foot chamber and 5 1/2 foot barrel.

Last post

Ok got the video up, and the reason I was so close was because it was in my backyard and I cant use higher pressure unless I got to a field. Maybe...

7 Replies

6087 Views

Last post by clemsonguy1125
Fri Jan 15, 2010 4:27 pm
Troubleshooting Issues

Last post by MrCrowley
Replies: 16
by coryS » Thu Jan 14, 2010 8:29 pm
1

2
First post

Hi guy's, well I just about finished my cannon for my senior project. It's a two inch barrel sealing piston valve. It's piloted by a 3/4 inch ball...

Last post

How's the performance? It should be fairly loud without a barrel.
Glad to hear it works though. :)
16 Replies

39852 Views

Last post by MrCrowley
Fri Jan 15, 2010 4:20 pm
qev valve/threads

Last post by Larda
Replies: 10
by lojtoy » Thu Jan 14, 2010 1:58 pm

First post

hi

I am planning to order a qev valve from America because they are too expensive around here. But i was just wondering if the threads on the qev...

Last post

Det var så lite så. :)

10 Replies

2237 Views

Last post by Larda
Fri Jan 15, 2010 12:19 pm
air suspension compressor - might be?

Last post by ahabich
Replies: 15
by ahabich » Tue Jan 12, 2010 2:03 pm
1

2
First post

Hi!
Sorry for my poor english, but i hope everybody will understand me
Im looking for a good air compressor. It should be fast and efficient.
I have...

Last post

Hi
Daltonultra , it seems that you are really into it, thanks for the tips :)
The last compressor cames from the opel omega, so it's GM part. The...
15 Replies

5736 Views

Last post by ahabich
Fri Jan 15, 2010 5:40 am
GGDT

Last post by btrettel
Replies: 6
by Lockednloaded » Thu Jan 14, 2010 10:26 pm

First post

The program GGDT will not work on my computer for some reason I downloaded it off of The Halls, ad followed all of the steps, but it still didn't...

Last post

GGDT runs with Wine if you want a free way to run GGDT. Here's a tutorial on how to do it on Linux . The steps should be similar for a Mac.

There...

6 Replies

3198 Views

Last post by btrettel
Thu Jan 14, 2010 11:31 pm
High Pressure Cannon Valve

Last post by spudkpi
Replies: 3
by spudkpi » Thu Jan 14, 2010 8:56 pm

First post

Hey guys I'm working on making a high pressure barrel sealing tee piston for my upcoming co2 gun. I have here some pictures that will explain...

Last post

The epoxy is West Systems Marine Epoxy and am going to throw it on the lathe so it will have a neoprene sealing face and a section that will seal...

3 Replies

1741 Views

Last post by spudkpi
Thu Jan 14, 2010 10:52 pm
Caveman simple HiPressure rifle...

Last post by jeepkahn
Replies: 40
by jeepkahn » Thu Jan 07, 2010 10:25 am
1

2

3
First post

to coin a phrase, It's a High Pressure Rifle So simple a Caveman could build it ...

I basicaslly wanted a shoulder fired version of the mini modgun...

Last post

Fine, what WE said! :D

:sign3:

Seriously though, Back on topic you lackeys....
40 Replies

14686 Views

Last post by jeepkahn
Thu Jan 14, 2010 2:48 pm
Rabid's Coaxial Tennis Ball Cannon

Last post by jrrdw
Replies: 29
by RabidDuck » Tue Dec 29, 2009 7:22 pm
1

2
First post

This is my 2nd Pneumatic cannon. It has a 3 foot long chamber, 4 inches in diamter and the barrel is 2.5 inches, 4.5 feet long. The piston is made...

Last post

May be time to throw more funds into crash helmets (by lord, we don't need more JRRDW's wandering around).

That may or may not be a problem, there...
29 Replies

14846 Views

Last post by jrrdw
Thu Jan 14, 2010 12:46 pm
Can People Look Over My Idea :)

Last post by chinnerz
Replies: 17
by Major Collins » Fri Jan 08, 2010 11:59 pm
1

2
First post

ok this is my idea for my bolt system

can you point out some flaws and how i can fix them btw i want it to stay as much like this as possible . I...

Last post

hmm nice, i like it. looks like that bolt system is working for you :P
17 Replies

5921 Views

Last post by chinnerz
Thu Jan 14, 2010 2:36 am

New Topic

8160 topics

Page 117 of 327
- Jump to page:
Previous
1
…
115
116
117
118
119
…
327
Next

Return to Board Index

Information

Forum permissions

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Pneumatic Cannons

Forum permissions

Login • Register