SpudFiles

SPECS:
3" double detachable chamber,12" inch and 24" inch
3/4" inch pvc valve for safety, traveling, and bike pump filling
1" inch modified rainbird sprinkler valve with ball valve safety
200 p.s.i air gauge
schrader filling valves
28" inch X 1" inch barrel
All pvc and fittings are schedule 40

I have been working on this cannon for about 3 weeks now. When I first started, everything was going good, until I got around to modding the sprinkler valve. I had the wrong one. It was a rainbird 1 inch cpf 100 rather than the normal cp 100. The difference was flow control. I tried everything under the sun to get this valve to work, including throwing it against the wall a few times and swearing at it numerous times! I finally broke down and got the right valve and put it together today!
The first time I shot it, I was like holy f#$%ing s#%t!!! I got well over 200 yards with just a potato. It has a pretty good bang to it as well. I have brought it up to about 110 p.s.i because thats all I can get outta my compressor. I want to try to double that in the future. I have to re-paint it still and put a few more finishing touches. Please let me know what you think for a noob!! I will try to post some damage pics soon and when I make a few more different size barrels. Hope you like it!![img]

sounds good but some pics would be nice

I'm trying to do that now. I thought I did, but apparently not. I cant get them to post from my camera. Any suggestions??

I have a suggestion... Don't double 110 psi in a PVC cannon especially with a sprinkler valve on it. 220 psi is just over the limit.

you can see pics of my cannon at this link!
please share your comments and criticisms!

Nice effort for a first cannon, one thing though, your chamber is far too big. I'm sure you could make it half the size and you will not see a difference in power, but it will make it easier to pump up and quieter too. You might have to change the name to "Blue Distant Thunder"

I dont get it, "blue distant thunder??" could you elaborate? Also the chamber is interchangeable, there are 2 in one if you looked at the pics and descriptions. I first started with the smaller 12 inch one, but it didnt have poop for power, which is why I added the 2nd one on. Any other suggestions to make it better? And thank you for commenting!

Ah, I hadn't noticed the two part chamber. Nice.

I mean "distant thunder" as in it would be quieter, so no longer actually "thunder".

for pics upload to a program like photobucket.com you can upload from your computer and get links img direct link etc

i use it and havent had any problems with it

I tried photo bucket and it didnt work. I tried a hundred times and they wouldnt upload

If you crop photos to a smallish size to meet the filesize limits of Spudfiles, you can edit a post and add photos by using the add file button below.

wow, my cannon must suck, hardly no comments!!! wtf???

It doesn't suck, the showcase submission is just somewhat incomplete. No pictures, videos, GGDT simulations... etc.

Today I put a 1 inch super marble through my neighbors fence measured 40 feet away. I did this at 80 psi with a 1 inch barrel with said cannon blue thunder. It blew a chunk of the piket right off!!

with my neighbors permission of course!!!