I know all you punks be hating ball valves but this is my first gun, future projects might have piston. Here are some pics. A 3/4" cpvc barrel, 2" chamber, a valve for loading air and one for firing, bad primer job what more can i say?
and yes i plan on painting
My ammo is navy beans in place of airsoft BBs thats about a 300% price difference. Also a pvc bolt. And one dart that i made thanks to someones post on here (no, i'm not making a link I'm LAZY)
The chamber is DWV but it said 280psi so i assume its ok, it was water tested to 120psi by me.
Yes, i put the pictures on backwards, so sue me.
ball valve gun
- Attachments
-
- What my bolt did to fort cambot.
-
- good old fort cambot.
-
- after.
-
- Before.
-
- My dart.
-
- my gun and ammo
-
- My bolts last shot it broke but did lots of damage.
-
- longer barrel. 50". i dont have a support brace so i cant put it on yet.
Last edited by cambot339 on Sat Nov 10, 2007 6:41 pm, edited 4 times in total.
I dont see pics!! Im blind!!! 
No really you gotta fix that
No really you gotta fix that
4SPC, My 4" piston 3" porting cannon
Memo:
Fix up copper cannon
Fix up 4SPC
Start Stirrup pump
Start Toolies piston bazooka
Memo:
Fix up copper cannon
Fix up 4SPC
Start Stirrup pump
Start Toolies piston bazooka
Dude... You need a barrel with like, 10x as much volume as that one. What's the C:B on this thing?
Spring loading the ball valve would be simple and would increase performance.
Spring loading the ball valve would be simple and would increase performance.
Spudfiles' resident expert on all things that sail through the air at improbable speeds, trailing an incandescent wake of ionized air, dissociated polymers and metal oxides.
Well now that you have pics i can critique you
Its not bad at all but DYI is definately right, you can increase the barrel by alot, but i do like to have my chamber have somewhat more volume than my chamber but not as much as you have in your pic, by alot. But besides that, you could mod the ball valve too. But make sure you have adequite information about piston valves b4 you go prancing on and making one because you dont want to mess up 2 guns like i did and spend 150. Remember, you can never have too much info.
Its not bad at all but DYI is definately right, you can increase the barrel by alot, but i do like to have my chamber have somewhat more volume than my chamber but not as much as you have in your pic, by alot. But besides that, you could mod the ball valve too. But make sure you have adequite information about piston valves b4 you go prancing on and making one because you dont want to mess up 2 guns like i did and spend 150. Remember, you can never have too much info.
4SPC, My 4" piston 3" porting cannon
Memo:
Fix up copper cannon
Fix up 4SPC
Start Stirrup pump
Start Toolies piston bazooka
Memo:
Fix up copper cannon
Fix up 4SPC
Start Stirrup pump
Start Toolies piston bazooka
What? A little description of what you are talking about would be nice.yah, I have a non cpvc one drying now and its about 1:2 the one on the gun is like 1:1.2
Spudfiles' resident expert on all things that sail through the air at improbable speeds, trailing an incandescent wake of ionized air, dissociated polymers and metal oxides.
How could the C:B on that be 1:1.2?
From what I can see, it is closer to 15:1.
How long is the barrel and how long is the chamber?
From what I can see, it is closer to 15:1.
How long is the barrel and how long is the chamber?
Spudfiles' resident expert on all things that sail through the air at improbable speeds, trailing an incandescent wake of ionized air, dissociated polymers and metal oxides.
-
MrCrowley
- Moderator
- Posts: 10078
- Joined: Fri Jun 23, 2006 10:42 pm
- Location: Auckland, New Zealand
- Been thanked: 3 times
cambot339 wrote:that was met to be after yours...
how do i mod my valves? is it hard?
You mean mod your sprinkler valve? Or spring load your ball valve?
For sprinkler valve mods go here:
http://www.spudfiles.com/forums/modding ... -t305.html
Next time search, we have loads of topics on modding sprinkler valves.
If the chamber and barrel are both 12" long, with the barrel 3/4" in diameter and the chamber 2" in diameter, then the C:B ratio is 7.1:1.
Spudfiles' resident expert on all things that sail through the air at improbable speeds, trailing an incandescent wake of ionized air, dissociated polymers and metal oxides.
try Advanced search and remember not to double post 
But i would have to say i think we dont have too much info on spring loaded ball valves but for everything else pertaining to spud gun creation, shooting and everthing else under this topic, we have alot of.
But i would have to say i think we dont have too much info on spring loaded ball valves but for everything else pertaining to spud gun creation, shooting and everthing else under this topic, we have alot of.
4SPC, My 4" piston 3" porting cannon
Memo:
Fix up copper cannon
Fix up 4SPC
Start Stirrup pump
Start Toolies piston bazooka
Memo:
Fix up copper cannon
Fix up 4SPC
Start Stirrup pump
Start Toolies piston bazooka
-
MrCrowley
- Moderator
- Posts: 10078
- Joined: Fri Jun 23, 2006 10:42 pm
- Location: Auckland, New Zealand
- Been thanked: 3 times
cambot339 wrote:ok the new barrel is up now its 50" long and still 3/4" wide
its a ball valve and i cant find any thing on the search
We do have a fair amount on spring loading ball valves, but since ball valves aren't very powerful as primary valves, not many people need to mod them.
All you do is hook a spring up to a ball valve, it's very simple to do, if you built this cannon you should be able to just use your head and you'll come up with how to do it. Very simple.