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 55 users online :: 5 registered, 0 hidden and 50 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

Almost done!

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

Unread postAuthor: Brian the brain » Fri Nov 13, 2009 2:43 pm

If you put a spring behind the piston, you couls fill chamber -side.
Piloting could be done through a hammervalve.

That way you are free to add any stock you like....

With your lathe-skills you could make a large slide valve...wich would give you similar merformance to the ballvalve...
  • 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: turner » Tue Nov 17, 2009 10:13 pm

I've read all 6 pages but what's the piece the seals on? Is it like custom machined
  • 0


turner
Staff Sergeant
Staff Sergeant
 
Posts: 113
Joined: Fri Aug 07, 2009 11:48 pm
Reputation: 0

Unread postAuthor: dilweed » Wed Nov 18, 2009 12:55 pm

-congrats! i just crapped my pants, I think I wont be wanting to play air soft with you any time soon. I just cant believe that a 6mm PLASTIC airs oft bb can penetrate wood! I don't think you realize how lucky you are to be blessed with proper machining tools, and the skill to use them -extremely- well. Your gun is more art(admittedly if it was it would be an abstract) than a mere spudy.


I SALUTE YOU!
  • 0


dilweed
Staff Sergeant
Staff Sergeant
 
Posts: 102
Joined: Tue Feb 26, 2008 3:49 pm
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Wed Nov 18, 2009 1:06 pm

dilweed wrote:I just cant believe that a 6mm PLASTIC airs oft bb can penetrate wood!


I think you'll find thatif you throw them hard enough, plastic BBs will go through a lot ;)
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Unread postAuthor: Jack_Hogg » Wed Nov 18, 2009 1:24 pm

Thanks dilweed :) I have about 2 years of lathe experience, and I am thinking of buying my own mini/hobby lathe, so I can learn about thread cutting and stuff like that so I can make my own couplers and stuff..

turner wrote:I've read all 6 pages but what's the piece the seals on? Is it like custom machined


The part that the piston rubber seal against is custom made out of an solid 25mm brass rod. It's turned on a lathe and soldered it in the ¾" to 28mm nipple.
  • 0

User avatar
Jack_Hogg
Sergeant First Class
Sergeant First Class
 
Posts: 133
Joined: Tue Feb 20, 2007 7:56 am
Reputation: 0

Unread postAuthor: Jack_Hogg » Wed Nov 18, 2009 2:05 pm

My friend filmed this. First video of the gun ever :o

40 Bars of pressure and 30 bb's
Note: I am holding the gun very strong at this moment :twisted:
It is VERY loud :!:
[youtube]http://www.youtube.com/watch?v=62YYrtdEINI[/youtube]
Sorry for double post :oops:
  • 0

User avatar
Jack_Hogg
Sergeant First Class
Sergeant First Class
 
Posts: 133
Joined: Tue Feb 20, 2007 7:56 am
Reputation: 0

Unread postAuthor: Brian the brain » Wed Nov 18, 2009 4:04 pm

Jezus!
Hahahaha

The response of those unfamiliar with the power of high pressure spudguns is priceless...

Bet your friend wasn't expecting it to sound like a real shotgun..

:D

Your neighbours are definitely not happy...

What was the ammo?( edit: 30 bb's never mind)
And..it seems to have a lot of recoil, but I'm quite sure most of it is thrust from all that air stored in that big chamber..
It's a bit like a high powered bottlerocket.
It seems pretty much equal to Psycix' gun powerwise...Same kind of rediculous BANG at 40 bar..

Seems like you could get a smaller diameter chamber and get the same power but less noise..And less " recoil" ..
But I'm guessing that you like it this way....

It's just a tip, not criticism...I love it even more after seeing the vid..
Again...priceless...
  • 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

Sponsored

Sponsor
 


Unread postAuthor: psycix » Thu Nov 19, 2009 7:02 am

Haha BANG-Jezus! :D

BTB wrote:It seems pretty much equal to Psycix' gun powerwise...Same kind of rediculous BANG at 40 bar..

I guess so, however this valve is better flow-wise.
Well, kinda logical that they are somewhat similar, as both have a bit of BTB-DNA in them. :wink:
  • 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: dilweed » Thu Nov 19, 2009 2:16 pm

okay, thats it, you're movie just made me : http://www.youtube.com/watch?v=4pXfHLUlZf4


MOAR PWN@GE VIDEOS!
-enough annoying comments for me then!
  • 0


dilweed
Staff Sergeant
Staff Sergeant
 
Posts: 102
Joined: Tue Feb 26, 2008 3:49 pm
Reputation: 0

Unread postAuthor: Jack_Hogg » Wed Nov 25, 2009 1:46 pm

I have added foam grip to my pistol grip. I will upload some pictures tomorrow when I have bright daylight :wink:
  • 0

User avatar
Jack_Hogg
Sergeant First Class
Sergeant First Class
 
Posts: 133
Joined: Tue Feb 20, 2007 7:56 am
Reputation: 0

Unread postAuthor: Jack_Hogg » Thu Nov 26, 2009 8:38 am

So here are the pictures now :tongue:


Image

Image

Image

It's very comfortable to hold now :)
  • 0

User avatar
Jack_Hogg
Sergeant First Class
Sergeant First Class
 
Posts: 133
Joined: Tue Feb 20, 2007 7:56 am
Reputation: 0

Unread postAuthor: Brian the brain » Thu Nov 26, 2009 12:56 pm

Looks very good!
  • 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: Heimo » Thu Nov 26, 2009 3:43 pm

very nice indeed great job on this cannon
  • 0

User avatar
Heimo
2nd Lieutenant
2nd Lieutenant
 
Posts: 242
Joined: Sun Oct 25, 2009 3:02 pm
Reputation: 0

Unread postAuthor: Jack_Hogg » Sat Dec 12, 2009 11:49 am

I have made a new video yesterday 8)
[youtube]http://www.youtube.com/watch?v=t3rplQwApts[/youtube]

The only thing I still have to do is place the shrimping tube around the resevoir, and solder the front sight to the barrel.
  • 0

User avatar
Jack_Hogg
Sergeant First Class
Sergeant First Class
 
Posts: 133
Joined: Tue Feb 20, 2007 7:56 am
Reputation: 0

Unread postAuthor: POLAND_SPUD » Sat Dec 12, 2009 12:25 pm

I can see that your fridge compressor works fine :wink:

that's impressive but you might want to use heavier ammo in your future videos

you might have noticed that marbles are really poor projectiles as far as external and terminal ballistics are concerned...

IDK much about terminal ballistics but I've modelled 16mm (5g) marbles in chairgun and after covering about 31 meters they only have 50% of their muzzle energy

IDK how accurate is chairgun in predicting wound channel depth but when I compared marbles to 9.65mm ball bearings they penetrated only half as deep (5cm and 10cm respectively; muzzle velocity - 160m/s for both projectiles - with the same muzzle energy marbles score even worse)
  • 0

Children are the future

unless we stop them now
User avatar
POLAND_SPUD
Chief of Staff
Chief of Staff
 
Posts: 5405
Joined: Sat Oct 13, 2007 4:43 pm
Country: Israel (il)
Reputation: 10

PreviousNext

Return to Pneumatic Cannon Database

Who is online

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

Reputation System ©'