My camera has just broke. I will try to post pics up asap. Sry for the horrible drawings an diagrams.
Also the hot glue gun is for making a holder for the 9volts an a mount for the buttons.
Video of it as of July 20th 2007
Step 1: Parts List!! Tools!!!
Hot glue gun
Somthing to strip wire
About 3ft of 2" schedule 40.
A long 1" schedule 20 pvc pipe.
2" slip cap.
2" slip cuppling.
2" x 3/4" Slip x Thread Bushings.
Three threaded reducing male adapters 3/4"x1".
A 3/4" irrigation valve
A theading tire valve. This took me a while to find. It is a metal stem valve, just as one on a bike. It will have threads on the end that gose into the pvc. Rumors are that there findable at autozones an auto suplies stores.
Five 9 volt batterys.
Five 9v battery connecters.
One switch an one push button.
I will get pics up i tryed taking pics but my camera isnt working right now. How convenient!
Step 2: Building the Cannons Compresstion Chanber.
Once you have gotten evreything first you will want to start on the 2" slip cap an tire valve. It is important you do it like this. First find a drill bit that looks to be the same size as the valve. Then test it out on some of the 1" pvc. Drill the hole out an then screw the valve in to make sure the bit is a good size. You want the bit to make its own threads in the pvc. If its a good match then get the cap. Try to get as close to center of the cap as possible. Once the hole is drilled then rap the threads of the valve once or twice an screw it in.
Clean the inside of the slip cap an the 2" pvc. Glue the Slip cap to 2" pvc pipe about 3ft long. Now clean the other end of the 2" pipe, slip cupling, an the reducing bushing. Glue these together an try to keep them even so the 2" pvc pipe gose in an meets the reducing bushing in the middle as best as you can.
Step 3: Chamber an Valve Link.
Step 4: Connecting Valve to Chamber.
Step 5: Wireing the Valve.
To test if its working turn the switch on an push the button. If you hear it click then it is working.
Step 6: Finishing
To test this i suggest putting a inch of water down the hatch an using a bike pump to pump it a good few times. Then release the button an watch it spray.
I tested mine with a compressor an it didnt give until 120psi. It gave in a connection witch it will always break first. The only time this will shatter is if the pvc has been out in the sun for a very long time an is brittle. I suggest using only new pvc. Also I shoot bouncy balls using only 40psi an it shoots them across the local football field an some.