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 50 users online :: 4 registered, 0 hidden and 46 guests


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

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

The Team
Administrators
Global Moderators
global_moderators.png CS

Joe's Howitzer

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 
  • Author
    Message

Joe's Howitzer

Unread postAuthor: deathbyDWV » Thu Jun 17, 2010 12:26 am

Hey guys...

Not sure who remembers this but, it's gone through ALOT of changes and upgrades.

I was a complete noob at the time I built this, so there have been some things I've upgraded and some that I changed...

So I guess I'll make a list:
Increased porting
Fixed sealing leak
Shortened stand
Reduced pilot volume
Wrapped pilot over to top (for compact-ness)
New secondary pilot
New gauge
Muzzle brake
Took off back piece on stand (changed from I to T)

Lots of new ammo.

Lots of perforated plywood.


So on to specs:
6' x 4" chamber
10'x 2" barrel (partially removeable (for storage))
SP valve pilot
(anything else?)

Now pics!!!

Whole thing on stand...
Image

Pilot area...
Image

Settin up to use "knocker" round...
Image
(In this shot, it went through 4 sheets, bounced off the pile of mulch and flew around 150' into my neighbors yard...

Now the uncommon parts...
This is the piston. It has a 4" diamond blade at the front and the soft side of velcro to help seal. Where's the rubber you ask?
Image

Here it is!!! It used to be a 2" union. It is also used as the barrel spacer...
Image

By this next week, I'll have pics of all the ammo I have.
And hopefully some vids, maybe some high speed...



*Quick Update*
This is a pic of the back two boards in that set of four above.
Image
This is the only pic I can find right now.
I'll have more this weekend (in high quality), and videos.
  • 0

Last edited by deathbyDWV on Thu Jun 17, 2010 7:55 am, edited 1 time in total.
Life's too short to mark off the items on your wish list...
User avatar
deathbyDWV
Colonel
Colonel
 
Posts: 576
Joined: Sat May 16, 2009 4:02 pm
Location: Owasso, OK
Reputation: 2

Unread postAuthor: nosnik » Thu Jun 17, 2010 1:00 am

any chance of damage pictures yet?
  • 0

[alt-255] [alt-255] [alt-30] [enter] [alt 30] [alt 255] [alt 30]

nosnik
Corporal
Corporal
 
Posts: 68
Joined: Wed Dec 30, 2009 2:30 am
Reputation: 0

Unread postAuthor: deathbyDWV » Thu Jun 17, 2010 7:01 am

But I guess I forgot to mention, I can get damage this weekend. Hopefully...
  • 0

Last edited by deathbyDWV on Thu Jun 17, 2010 2:25 pm, edited 1 time in total.
Life's too short to mark off the items on your wish list...
User avatar
deathbyDWV
Colonel
Colonel
 
Posts: 576
Joined: Sat May 16, 2009 4:02 pm
Location: Owasso, OK
Reputation: 2

Unread postAuthor: spudtyrrant » Thu Jun 17, 2010 7:31 am

thats a clever idea modding the 2" union, very nice cannon, can't wait to see that damage :twisted:
  • 0

I ♥ ♣'in baby seals
User avatar
spudtyrrant
Colonel
Colonel
 
Posts: 550
Joined: Fri Jan 02, 2009 6:10 pm
Reputation: 0

Unread postAuthor: deathbyDWV » Thu Jun 17, 2010 7:56 am

Thanks. Damage this weekend...
  • 0

Life's too short to mark off the items on your wish list...
User avatar
deathbyDWV
Colonel
Colonel
 
Posts: 576
Joined: Sat May 16, 2009 4:02 pm
Location: Owasso, OK
Reputation: 2

Unread postAuthor: Gun Freak » Thu Jun 17, 2010 9:12 am

Yep love the union seat idea, great. Sweet cannon!
  • 0

OG Anti-Hybrid
One man's trash is a true Spudder's treasure!
Golf Ball Cannon "Superna"M16 BBMGPengunHammer Valve Airsoft SniperHigh Pressure .22 Coax
Holy Shat!
User avatar
Gun Freak
Lieutenant General
Lieutenant General
 
Posts: 4969
Joined: Mon Jan 25, 2010 4:38 pm
Location: Florida
Country: United States (us)
Reputation: 11

Unread postAuthor: deathbyDWV » Thu Jun 17, 2010 9:20 am

Thanks freak... :D

(that sounded kinda offensive...)
  • 0

Life's too short to mark off the items on your wish list...
User avatar
deathbyDWV
Colonel
Colonel
 
Posts: 576
Joined: Sat May 16, 2009 4:02 pm
Location: Owasso, OK
Reputation: 2

Sponsored

Sponsor
 


Unread postAuthor: Gun Freak » Thu Jun 17, 2010 9:27 am

Yeah it does... lol everybody does that...

Does the barrel flex after the union and wouldn't the space between the barrel segments mess up the projectile path?
  • 0

OG Anti-Hybrid
One man's trash is a true Spudder's treasure!
Golf Ball Cannon "Superna"M16 BBMGPengunHammer Valve Airsoft SniperHigh Pressure .22 Coax
Holy Shat!
User avatar
Gun Freak
Lieutenant General
Lieutenant General
 
Posts: 4969
Joined: Mon Jan 25, 2010 4:38 pm
Location: Florida
Country: United States (us)
Reputation: 11

Unread postAuthor: deathbyDWV » Thu Jun 17, 2010 12:19 pm

The barrel isn't heavy enough to flex much at all. The union was smaller than the barrel but I dremeled it out...
  • 0

Life's too short to mark off the items on your wish list...
User avatar
deathbyDWV
Colonel
Colonel
 
Posts: 576
Joined: Sat May 16, 2009 4:02 pm
Location: Owasso, OK
Reputation: 2

Return to Pneumatic Cannon Database

Who is online

Registered users: Bing [Bot], Exabot [Bot], Google [Bot], Yahoo [Bot]

Reputation System ©'