Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 47 users online :: 5 registered, 0 hidden and 42 guests


Most users ever online was 218 on Wed Dec 07, 2016 6:58 pm

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], MSNbot Media, Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

3" barrel seeling piston valve

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
Sponsored 

do you like it?

yes
6
60%
no
4
40%
 
Total votes : 10
  • Author
    Message

3" barrel seeling piston valve

Unread postAuthor: chrissilvermancs » Fri Mar 13, 2009 1:54 pm

i have had this cannon for a little wile could get the pictures to work for a long time so i didnt post it sorry i dont have any damage pics or much of it in action will add some soon.

so it a 4" chamber that goes to a 3" tee i had to use 2" pipe to connect it at the time so its a little less flow.

i just recently added the o-rings the blue panters tape dose nothing have removed it yet

when i built this the screw on back of the piston was a relatively (weeks) new idea my fried spudgunnerwryyyyy first suggested it to MC Crowley i believe the he told me how it works and helped me build it.

[youtube]http://www.youtube.com/watch?v=2QtbwE4PDIs[/youtube]
  • 0

Attachments
whole thing eddited.jpg
the whole cannon with out barrel
wholethingsmall.jpg
the whole cannon
pistonremix.jpg
my piston notice the wood :)
innerborewithpistonremix.jpg
the inside
th_IMGP0232-1.jpg
this is the current condition
th_IMGP0232-1.jpg (3 KiB) Viewed 1552 times
th_IMGP0233-1.jpg
this is the current condition
th_IMGP0233-1.jpg (3.5 KiB) Viewed 1552 times
Last edited by chrissilvermancs on Fri Jul 31, 2009 4:57 am, edited 1 time in total.
User avatar
chrissilvermancs
Corporal
Corporal
 
Posts: 67
Joined: Sat Mar 07, 2009 2:18 am
Reputation: 0

Unread postAuthor: chrissilvermancs » Fri Mar 13, 2009 2:00 pm

BTW the tennis ball was at 70~80 psi can do a lot more my brothers camera was dieing next time i will try to get the ball in mid air or find a place i can shoot this thing at and get some damage pics
  • 0

User avatar
chrissilvermancs
Corporal
Corporal
 
Posts: 67
Joined: Sat Mar 07, 2009 2:18 am
Reputation: 0

Unread postAuthor: Hubb » Fri Mar 13, 2009 2:02 pm

You almost made me say a dirty word :oops:

That thing is a beast. Nice work.

BTW: You should edit the post instead of make a double post.
  • 0

User avatar
Hubb
Major General
Major General
 
Posts: 2390
Joined: Mon May 28, 2007 8:39 am
Location: South Georgia
Reputation: 2

Unread postAuthor: AdiabaticManiak » Fri Mar 13, 2009 2:35 pm

Now this is a nice gun! what a beast.
Do you think the weight of the piston is a issue? i think it looks heavy.
But it sure looks like the power in it is well enough!!
Gratz to the nice gun!
  • 0

User avatar
AdiabaticManiak
Private First Class
Private First Class
 
Posts: 27
Joined: Fri Mar 13, 2009 2:27 pm
Location: Germany, Magdeburg
Reputation: 0

Unread postAuthor: chrissilvermancs » Fri Mar 13, 2009 3:14 pm

i don't think its too heave its a instant fire and i have put tissues in the exhaust valve and it hardly blows out and i cant here any air going in the barrel before it fires because its so quick

so i would say its pretty efficient.
  • 0

User avatar
chrissilvermancs
Corporal
Corporal
 
Posts: 67
Joined: Sat Mar 07, 2009 2:18 am
Reputation: 0

Unread postAuthor: psycix » Fri Mar 13, 2009 3:46 pm

Nice. Wouldnt the cannon be MUCH MUCH more compact if you would turn the barrel around, so it goes over the chamber?

Maybe give it a lick of paint to cover up those primer stains.
  • 0

Till the day I'm dieing, I'll keep them spuddies flying, 'cause I can!

Spudfiles steam group, join!
User avatar
psycix
Donating Member
Donating Member
 
Posts: 3684
Joined: Mon Jun 25, 2007 7:12 am
Location: The Netherlands
Reputation: 0

Unread postAuthor: chrissilvermancs » Fri Mar 13, 2009 3:58 pm

well the chamber comes off all parts have male and female adapters on them the reason i turned it length wise was because i was shooting up and other wise i would have to hold it or else the cannon would be resting on the sprinkler valve.

but yes i do turn the cannon to a more compact form when im not shooting up.javascriptemoticon(':wink:')
  • 0

User avatar
chrissilvermancs
Corporal
Corporal
 
Posts: 67
Joined: Sat Mar 07, 2009 2:18 am
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: jonnyboy » Fri Mar 13, 2009 4:01 pm

Wow this thinks a best it kind of reminds me of jooks gun. Although why wouldn't you spin the barrel 180 degrees to the gun would be compact. Also why did you go down to 2 inches after the chamber? Other than that your gun is sweet.
  • 0

mobile chernobyl wrote:I can shoot a Canuter Valve off my '82 Chevy Ram F150 AT LEAST 3/4 Mile with 'ma cannon made of soup cans duct taped together, then I just squirt some bacardi 151 in the chamber and hold up my cigarrete lighta and WHOOSH! That thing flies at least 3/4 mile
User avatar
jonnyboy
Colonel
Colonel
 
Posts: 591
Joined: Mon May 26, 2008 1:20 pm
Location: Williamston MI USA
Reputation: 0

Unread postAuthor: chrissilvermancs » Fri Mar 13, 2009 4:29 pm

how about you read the comment right above you and you can fine out

ll parts have male and female adapters on them the reason i turned it length wise was because i was shooting up and other wise i would have to hold it or else the cannon would be resting on the sprinkler valve.




and for your second question it is in the description
i had to use 2" pipe to connect it at the time


i didnt have the cash at the time and i already had the parts to go 2" and its not that big of a difference
  • 0

User avatar
chrissilvermancs
Corporal
Corporal
 
Posts: 67
Joined: Sat Mar 07, 2009 2:18 am
Reputation: 0

Unread postAuthor: Brian the brain » Fri Mar 13, 2009 4:33 pm

He went down to two inches to create the rotating connection I presume.

The piston looks very ghetto, glad to see it works, I just think you'll be servicing it a lot.

If you don't want to have it stand up on the sprinkler, you could use a second tee and extend the chamber a bit out the back..and keep the rest under the barrel.
  • 0

Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
User avatar
Brian the brain
Moderator
Moderator
 
Posts: 3494
Joined: Mon Dec 05, 2005 2:06 am
Location: Holland
Country: Netherlands (nl)
Reputation: 29

Unread postAuthor: chrissilvermancs » Fri Mar 13, 2009 11:52 pm

its not that big of a deal having compact when firing up to me and actually not a lot of maintenance one day i will make a real piston belive me i have tried epoxy it doesn't work on any thing over two" but i have not yet had a problem with this would i did use a different type of wood before and it cracked after 100psi and launched would rubber and metal every were. but i did a better job this time.

but this thing is no where near getto this is getto my first combustion
  • 0

Attachments
th_CopyofIMGP0039.jpg
my first combustion
th_CopyofIMGP0039.jpg (6.75 KiB) Viewed 2140 times
User avatar
chrissilvermancs
Corporal
Corporal
 
Posts: 67
Joined: Sat Mar 07, 2009 2:18 am
Reputation: 0

Unread postAuthor: chrissilvermancs » Fri Mar 20, 2009 6:23 pm

other than that pice of wood have any ideas of something i could use insted?
not sheet metal or pvc
  • 0

User avatar
chrissilvermancs
Corporal
Corporal
 
Posts: 67
Joined: Sat Mar 07, 2009 2:18 am
Reputation: 0

Unread postAuthor: suburban spudgunner » Fri Mar 20, 2009 8:38 pm

My god...that thing is huge.

other than that pice of wood have any ideas of something i could use insted?
not sheet metal or pvc


You mean for a piston?

I'm not sure if this would be helpful, but I think JSR posted a topic on how to make homemade plastic.
  • 0

The definition of insanity is doing the same thing over and over again and expecting different results.
User avatar
suburban spudgunner
Staff Sergeant
Staff Sergeant
 
Posts: 124
Joined: Mon Jan 05, 2009 4:08 pm
Location: Oak Lawn, Illinois, USA
Reputation: 0

Unread postAuthor: chrissilvermancs » Fri Mar 20, 2009 9:35 pm

ya i saw that but i dont trust that plastic and im pretty sure theres a toxic gas relessed when melting plasic so personally i was looking at maby shaving down those abs caps to fit
  • 0

User avatar
chrissilvermancs
Corporal
Corporal
 
Posts: 67
Joined: Sat Mar 07, 2009 2:18 am
Reputation: 0

Unread postAuthor: jook13 » Fri Mar 20, 2009 11:19 pm

It would be pretty easy to clean up that piston and get rid of that wood.

Get another 3 inch coupler like you have. Then get a slip bushing that goes to threaded 1/2 or 3/4 inch. Find a short threaded bolt that fits (not hard to find in the hardware section of Ace or Home depot). Use the bolt and a few appropriate sized washers and Sealing face materiel then you are set. That is how I built Mine

edit: Forgot to mention that this is a sweet launcher. Love the mega sized cannons!
  • 0

I like to play blackjack. I'm not addicted to gambling, I'm addicted to sitting in a semi-circle.
User avatar
jook13
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 434
Joined: Mon Jan 21, 2008 10:39 pm
Location: Prescott Arizona
Reputation: 0

Next

Return to Pneumatic Cannon Database

Who is online

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], MSNbot Media, Yahoo [Bot]

Reputation System ©'