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 38 users online :: 6 registered, 0 hidden and 32 guests


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

Registered users: Bing [Bot], Exabot [Bot], Google [Bot], Majestic-12 [Bot], MSNbot Media, Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

Fire Extinguisher Help

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
Sponsored 
  • Author
    Message

Fire Extinguisher Help

Unread postAuthor: removed » Sun Dec 02, 2007 6:34 am

Gday all
ive got a small fire extinguisher dunno the size ive previously used it to shoot bits of wire in an over under set up i removed the gauge and inserted a valve. now i was wondering if it would be able to shoot projectiles such as marbles ive got the perfect steel pipe i found at tafe. also i was wondering if i should keep the trigger it has on their or extend the chamber and have the trigger elsewhere and atempt a piston trigger.
  • 0


removed
Private
Private
 
Posts: 24
Joined: Thu Feb 09, 2006 8:19 pm
Reputation: 0

Unread postAuthor: Thursto » Sun Dec 02, 2007 6:38 am

Well if its your first cannon, i'd say keep it on, others will say attempt piston valve, most piston valves need a high flow air source to help seal them *correct me if im wrong. but i'd keep the trigger on there, OR get a 1" sprinkler valve, and pneumaticly mod it (do some searching, using the wiki button, or the Spudfiles search button), and yeh.

What do u mean you "removed the gauge, and inserted a valve" u mean you took the gauge of it, and put a tire valve/shrader valve in (fill valve)?

~thursto
  • 0

~ AUSSIE LAND ~
Image
User avatar
Thursto
Major
Major
 
Posts: 389
Joined: Fri Mar 02, 2007 5:11 am
Location: Australia, SA, Adeliade, Para Hills
Reputation: 0

Unread postAuthor: removed » Sun Dec 02, 2007 6:43 am

spot on mate exactly what i done. do u think it will be able to shoot marbles
  • 0


removed
Private
Private
 
Posts: 24
Joined: Thu Feb 09, 2006 8:19 pm
Reputation: 0

Unread postAuthor: Thursto » Sun Dec 02, 2007 6:47 am

Yeah i think it'd be able to shoot marbles, just have your barrel like almost 2 times as long as ur chamber, and it should be good. pump it to a high PSI, well im not sure what the fire extinguisher valve is pressure rated to, but i think 50PSI would be ok (thats not a hig PSI, jut recomended that because i dont know how much PSI it can handle), just be careful with it, make sure you seal everything correctly and dont drop it when its pressurerised.
  • 0

~ AUSSIE LAND ~
Image
User avatar
Thursto
Major
Major
 
Posts: 389
Joined: Fri Mar 02, 2007 5:11 am
Location: Australia, SA, Adeliade, Para Hills
Reputation: 0

Unread postAuthor: removed » Sun Dec 02, 2007 6:49 am

yer earlier i used a hand pump and got it to 75 i reckon it could go higher than that tho because i didnt really try how powerfull do u reckon it would be
  • 0


removed
Private
Private
 
Posts: 24
Joined: Thu Feb 09, 2006 8:19 pm
Reputation: 0

Unread postAuthor: Thursto » Sun Dec 02, 2007 6:56 am

Well im not sure how powerful it would be, but my cannon, has a marble barrel (1/2" Pressure PVC) and a 2" pressure PVC chamber, at 80psi from 20m it can put a marble through some ply wood. Just test it out, ad let me know, andget some pics and a vid so we can see the lil beast !

~ Thurso
  • 0

~ AUSSIE LAND ~
Image
User avatar
Thursto
Major
Major
 
Posts: 389
Joined: Fri Mar 02, 2007 5:11 am
Location: Australia, SA, Adeliade, Para Hills
Reputation: 0

Unread postAuthor: removed » Sun Dec 02, 2007 7:10 am

ok will do the only prob i face is trying to get the pipe joined to the chamber last time i just got a copper elbow that had a fitting on one end that went around small pipe then a bit screwed on over it this time ill have to figure out something hell smart lol. good old Aus if only we could legally make these lol
  • 0


removed
Private
Private
 
Posts: 24
Joined: Thu Feb 09, 2006 8:19 pm
Reputation: 0

Sponsored

Sponsor
 


fire extinguisher help

Unread postAuthor: Strake » Sun Dec 02, 2007 10:34 pm

i wrote a post not long ago under the name bugmenot about the same topic, now ive got a different account plus pics. My question was does any one have any ideas regarding joining the two pieces together? [/img]
  • 0

Attachments
03-12-07_1343.jpg
this is my chamber (fire extinguisher)
03-12-07_1341.jpg
these are the two pieces i need to join
03-12-07_1342.jpg
this is kind of how i want it to look, but i will have to make up some sort of bracket to support it
03-12-07_1345.jpg
the piece im thinking of welding into the barrel
03-12-07_1346.jpg
here is the barrel with the piece fitted if i decide to keep this i will run a weld around it . the only reason i was thinking of using this piece was so i could put a hose on the end and use those little clamps to hold it
03-12-07_1347.jpg
the copper elbow with nut
03-12-07_1348.jpg
the barrel was a dripper line that was inside another bit of pipe to keep it straight then that would just slip over that bit their and the nut went over top to lock it in place

Strake
Specialist
Specialist
 
Posts: 53
Joined: Sun Dec 02, 2007 9:15 pm
Location: Australia Baby
Reputation: 0

Unread postAuthor: Strake » Mon Dec 03, 2007 10:39 pm

does anyone got any ideas what i should do ?
  • 0


Strake
Specialist
Specialist
 
Posts: 53
Joined: Sun Dec 02, 2007 9:15 pm
Location: Australia Baby
Reputation: 0

Unread postAuthor: battlemonkey » Tue Dec 04, 2007 2:00 am

Not so sure about joining them, but it helps to drill out the nossle hole to increase flow.
  • 0

User avatar
battlemonkey
Sergeant First Class
Sergeant First Class
 
Posts: 137
Joined: Sat Sep 22, 2007 3:42 pm
Reputation: 0

Unread postAuthor: Strake » Tue Dec 04, 2007 5:38 am

that sounds like a good idea i might have to have a look at doing that 2morro, also ive decided to decrease the barrel size down to shoot darts instead and ill save that other bit of pipe for a future project.
  • 0


Strake
Specialist
Specialist
 
Posts: 53
Joined: Sun Dec 02, 2007 9:15 pm
Location: Australia Baby
Reputation: 0

Unread postAuthor: Lftndbt » Tue Dec 04, 2007 6:44 am

Oh yeah go the darts!! So much fun!
Use coat hanger's (readily available) , heat treat the tip's if you can/are familiar with hardening.. find beads at local thrift store's, that fit your tube and have a hole in them slightly larger than the wire...
Crimp the back end so the bead won't come off... Sharpen and use...
I find adding some 6mm fishing sinkers, helps for penetration purposes... I put 3 on my 30cm hunting dart's...
I'd post a pick but I just warped my last one, trying to get through 1 1/2 in pine stud at 180 psi... ;) One here going 15cm through 1/4 ply..
http://www.spudfiles.com/forums/viewtop ... tml#136843
  • 0

User avatar
Lftndbt
Specialist
Specialist
 
Posts: 50
Joined: Mon Nov 19, 2007 9:29 am
Reputation: 0

Unread postAuthor: Strake » Tue Dec 04, 2007 6:57 am

sweet how accurate are those darts and how far can u shoot them?
  • 0


Strake
Specialist
Specialist
 
Posts: 53
Joined: Sun Dec 02, 2007 9:15 pm
Location: Australia Baby
Reputation: 0

Return to Pneumatic Cannon Discussion

Who is online

Registered users: Bing [Bot], Exabot [Bot], Google [Bot], Majestic-12 [Bot], MSNbot Media, Yahoo [Bot]

Reputation System ©'