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 73 users online :: 5 registered, 0 hidden and 68 guests


Most users ever online was 155 on Mon Aug 15, 2016 1:40 am

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

The Team
Administrators
Global Moderators
global_moderators.png CS

my .22 casing and oter small things launcher

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

my .22 casing and oter small things launcher

Unread postAuthor: marpat » Tue Aug 19, 2008 5:48 pm

so i picked up 2 blowguns for 50 cents a piece at a garage sale
and was tinkering with them the other day when i found a small piece of metal pipe that was threaded on one end from a lawnmowers intake manifold
i tryed it and the threads fit perfectly

the gun

Image

so i was digging around for ammo in my room and i found a box of a 100 spent .22 long rifle casings turns out they fit quite nicely

IMG]http://i46.photobucket.com/albums/f141/tippmannhybrid/IM000345.jpg[/IMG]


they pierce the sides and bottom of pop cans quite nicely


Image



Image



then when i was getting bored i found a deck screw and cut its head off with an angle grinder

Image


more to come soon
  • 0

User avatar
marpat
Corporal
Corporal
 
Posts: 75
Joined: Thu Jun 05, 2008 9:31 pm
Reputation: 0

Unread postAuthor: Hubb » Tue Aug 19, 2008 5:57 pm

Nice little toy, but, FYI, the threads on most blowgun valves are 1/8" NPT. The pipe nipples can be found at most hardware stores.

You should put a stopper of some sort to hold the rounds back and give MORE POWER...aarrrrggg!!!
  • 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: marpat » Tue Aug 19, 2008 6:04 pm

so now the rest
shooting just the deck screw had too much blowby so decided to sabot it in one of the 22 cases

Image

and now some penatration with the screw
lol that sounds dirty

Image


i cant wait till i get my shock pump and am able to really shoot since all these were fired at 120 psi
  • 0

User avatar
marpat
Corporal
Corporal
 
Posts: 75
Joined: Thu Jun 05, 2008 9:31 pm
Reputation: 0

Unread postAuthor: SEAKING9006 » Tue Aug 19, 2008 6:11 pm

Burst disc to counter the flow restriction of the blowgun, maybe? Burst discs tend to be very effective at boosting power in small caliber cannons.

And if you're lucky, the screw MAY put very shallow rifling on the barrel when you fire it!



EDIT took too long, lol
  • 0

Completed projects:
CA1 SMSS Basic Inline
CA3 PDAB Airburst Cannon

Current Project: Bolt action rifle (25x140mm + 1in shot)

SEAKING9006
Colonel
Colonel
 
Posts: 734
Joined: Mon Jun 23, 2008 3:20 pm
Location: Texas
Reputation: 0

Unread postAuthor: FishBoy » Tue Aug 19, 2008 9:25 pm

pretty good job there, i always love it when something that was just thrown together works so well
  • 0

User avatar
FishBoy
Colonel
Colonel
 
Posts: 575
Joined: Tue May 27, 2008 5:51 am
Reputation: 0

Unread postAuthor: marpat » Wed Aug 20, 2008 10:22 am

so i was bored today some so i hooked it up to my bike pump using a schrader valve and i was able to bring the gun up to 160 psi and the deck screw sabot was able to pierce the side of a hairspray can

Burst disc to counter the flow restriction of the blowgun, maybe? Burst discs tend to be very effective at boosting power in small caliber cannons.


i must try this
  • 0

User avatar
marpat
Corporal
Corporal
 
Posts: 75
Joined: Thu Jun 05, 2008 9:31 pm
Reputation: 0

Return to Pneumatic Cannon Database

Who is online

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

Reputation System ©'