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rays spudzooka (PVC chaos)

Unread postPosted: Sun Jan 08, 2006 5:21 pm
Author: evileye250
this is my newly built air powered cannon that was $40. this will be a kewl cannon!

Image
Image
more pics to come!!

Unread postPosted: Sun Jan 08, 2006 6:39 pm
Author: saladtossser
odd design, but i love it, maybe u can use something like a u trap and let the chamber be vertical, hooked right on ur shoulder. looks very very clean

Unread postPosted: Tue Jan 10, 2006 5:25 pm
Author: dentlauncher
how big is the chamber and why is there a blue marker in the pic

Unread postPosted: Wed Jan 11, 2006 5:05 pm
Author: davidbowie
Those look like DWV elbows, and you should definitely upgrade to a modded sprinkler valve.

Unread postPosted: Wed Jan 11, 2006 5:33 pm
Author: saladtossser
dentlauncher wrote:why is there a blue marker in the pic

size referance :roll:

Unread postPosted: Wed Jan 11, 2006 5:34 pm
Author: jrrdw
is that a ball valve your useing? wont the release of air be to slow?

Unread postPosted: Thu Jan 12, 2006 8:45 pm
Author: beebs111
some people like to start with ball valves and work up to better ones like piston phram or modded sprinkler, hell thts what i did on my first 2 pnuematics

Unread postPosted: Sat Jan 14, 2006 2:23 pm
Author: evileye250
that was before i glued it together. now i got it glued. the marker os there because i was going to mark all the joints so when i glue it i just match the lines. i just went with the ball valve because i dont know alot about any thing else and there simple.

Unread postPosted: Thu Jan 19, 2006 9:36 pm
Author: Mini Khan
intresting
i guess

Unread postPosted: Sun Mar 05, 2006 9:39 pm
Author: evileye250
finally i got it done. before i could shoot it the ball valve locked up and i got cought with another project. its done now and it works good. i didnt shoot it past 50 psi but with 45 it shot about 200'. ive been shooting hard packed snow balls about 3'' long. i got the pics here
in most of the pics i have a link to the movie i slapped together under the pic. there not the greatest and i will get better ones soon. 1 question what psi do you guys shoot with? im thinking i wont go past 75.

Unread postPosted: Mon Mar 06, 2006 2:46 am
Author: The High Plainsman
generally, i shoot at over 100 psi.

Unread postPosted: Mon Mar 06, 2006 2:54 am
Author: Brian the brain
Thát's why i only use metal folks...

it starts at 300 psi for me

(biggest gun I ever made had a 26mm barrel.Can't afford brass compression fittings bigger than 28mm....

Thát's why you guys use PVC)
If you know the pressure rating of the weakest part of your gun you know your limit.
or as the ancient chinese guy said...
just keep it 1 PSI under the big bang

B.T.W...that's the last thing he said

Unread postPosted: Mon Mar 06, 2006 3:01 am
Author: The High Plainsman
i would love to go to metal, but i cant afford the fittings, and i cant afford a compressor to get me over 125 psi. i would have to use a chemical reaction of some sort to get that kinda power, and ive nearly blown myself up once with what amounted to a 5 foot long sch 40 dry ice bomb already (only thing that saved me was a pair of bolt cutters, otherwise, i would have found out first hand if pvc can be seen in x-rays).