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 72 users online :: 3 registered, 1 hidden and 68 guests


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

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

The Team
Administrators
Global Moderators
global_moderators.png CS

paintball coax(first gun)

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

paintball coax(first gun)

Unread postAuthor: SilentCyan » Thu Dec 11, 2008 10:45 pm

well then, i've finally gotten around to posting my first cannon :D definitely could have been put together better and it needs a paint job but hey, it shoots.

the piston is actually inside a 1 1/2" pipe which i fit into the end of the chamber by wrapping it with painters tape and hammering it in. now that the 2" s/t fitting is glued on it's stuck in there for good. the piston itself was made by wrapping painters tape(and some packing tape) around a 1 1/4" pipe which i filled halfway with red silicone(makes a great sealing face). barrel is two and a half feet of 3/4" cpvc pipe. i'm using a presta valve and bike pump(70psi max :( ) to fill it and a 1/4" ball valve for the pilot.

a few pics:

fill and trigger assembly-
Image

psi gauge-
Image

whole thing-
Image

blowgun dart shot with a sabot. it went about an inch into the wood.
Image


overall as a first attempt i'm fairly happy with it and the experience gained from building it. now all i need to do is stop buy lowes and buy the stuff for something better :twisted:
  • 0


SilentCyan
Private First Class
Private First Class
 
Posts: 31
Joined: Mon Jul 21, 2008 1:11 pm
Reputation: 0

Unread postAuthor: mark.f » Thu Dec 11, 2008 10:48 pm

Looks very good for a first cannon. I'd inquire as to why that front bushing sticks so far out, though.

Overall good job!
  • 0

User avatar
mark.f
Donating Member
Donating Member
 
Posts: 3464
Joined: Sat May 06, 2006 11:18 am
Country: United States (us)
Reputation: 21

Unread postAuthor: SilentCyan » Thu Dec 11, 2008 11:01 pm

markfh11q wrote:Looks very good for a first cannon. I'd inquire as to why that front bushing sticks so far out, though.

Overall good job!


thank you

:lol: it fit in there fine when i put the gun together before actually gluing it but with the primer and glue it didn't go very far before getting stuck like that. i'm not too worried about it coming apart at 70psi but i put some epoxy on it regardless, better safe than sorry.
  • 0


SilentCyan
Private First Class
Private First Class
 
Posts: 31
Joined: Mon Jul 21, 2008 1:11 pm
Reputation: 0

Unread postAuthor: SP00K » Fri Dec 12, 2008 6:41 am

Nice lookind coaxial. Is this your first gun ever? Or is it the first one you've posted? :)
  • 0

User avatar
SP00K
2nd Lieutenant
2nd Lieutenant
 
Posts: 212
Joined: Wed Dec 03, 2008 4:20 pm
Location: Ohiya
Reputation: 0

Unread postAuthor: SilentCyan » Fri Dec 12, 2008 4:02 pm

this is the first gun i've made and most definitely not my last

no more pictures yet but i was out shooting it earlier today and paintballs are doing a lot more damage than the potato slugs i was shooting which varied in size from 3/4" to 1 1/2" long. i was kind of surprised when they turned into mashed potatoes hitting a 1/8" piece of plexi glass i had laying around. i was getting a little disappointed with the power until i put a good sized hole in it with a paintball. now i just need to try that tabasco sauce bottle on something...
  • 0


SilentCyan
Private First Class
Private First Class
 
Posts: 31
Joined: Mon Jul 21, 2008 1:11 pm
Reputation: 0

Unread postAuthor: SEAKING9006 » Fri Dec 12, 2008 7:31 pm

I spy a DWV coupling. If not, the bushing isn't in there very deep at all.
  • 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: sputnick » Sun Dec 14, 2008 8:04 pm

Nice gun, very powerfull looking.
  • 0

User avatar
sputnick
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 498
Joined: Sun Dec 14, 2008 3:53 pm
Location: Ontario Canada
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: FishBoy » Sun Dec 14, 2008 9:04 pm

SEAKING9006 wrote:I spy a DWV coupling. If not, the bushing isn't in there very deep at all.


The couplers fine, it's just the bushing is only in about half way, which is as, if not more, unsafe.
  • 0

"You polish a turd, it's still a turd"

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

Unread postAuthor: STHORNE » Sun Dec 14, 2008 9:33 pm

very nice gun for your first build.

one question though:

why did you decide to place the pressure guage towards the muzzle of the gun and not near the butt?
  • 0

Forum Rules - follow them or else!
“Happiness is the meaning and the purpose of life, the whole aim and end of human existence”
User avatar
STHORNE
Donating Member
Donating Member
 
Posts: 1208
Joined: Wed Feb 14, 2007 7:50 pm
Location: Kewaunee, Wisconsin
Reputation: 0

Unread postAuthor: SilentCyan » Mon Dec 15, 2008 1:30 pm

thanks for the compliments(and repeatedly pointing out the coupler :lol: )

as for the pressure gauge being where it is, i wanted to put it somewhere that had two layers of pvc and since the piston is in the end i decided to put the gauge in the front
  • 0


SilentCyan
Private First Class
Private First Class
 
Posts: 31
Joined: Mon Jul 21, 2008 1:11 pm
Reputation: 0

Return to Pneumatic Cannon Database

Who is online

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

Reputation System ©'