SpudFiles

I havent posted any of my cannons lately so im putting this one up.

Main Features :
1.5" Porting barrel sealing valve
Breech loading
Enough backspin for a golfball to bounce off water 800ft away
FPS: estimated at 400 - 500 , GGDT says around 630FPS

I'll have a sprinkler valve, or a new 1/2" porting valve on it instead of the ball valve soon, and some new damage vids soon!

Heres some pics and a small vid i took with my phone.

This was at 80psi, there is a dramatic power increase when it is at 125psi but our compressor hose has a tear in it.
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These were from shooting table legs wrapped in ducktape at a metal sign, and also a d size battery.





Tell me what you think!

UPDATE:

I took some pics of the computer i shot and here they are, also a new video but i set the backspin too high so it hit the trees on the other side not the water like i intended.

The metal plate with the circuit board on it was attatched to the other metal plate, i shot them from both sides.











NOTE: The quality if the vid isnt so good because i took it with my phone

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I think. OUCH! Nice work man

Thanks, when i get my friend to come over with his video camera ill have 4000 airsoft bbs to shoot out of it

Tomorrow ill add soem pics of an old computer i shot up but i jumped on it after i shot it so its all in pieces now.

Very nice work, Did you lathe the o-ring groves?
And what is the piston made from?

Peace,
E1337

Nope, i used a drill with some tape on it. Heres a pic of it with the o-rings off.

Ahh. Very good idea. I have to try that sometime. Thick or thin tape?
WHats the piston made of?

-E1337

i used alot of thin, clear tape so that i get the perfect fit. I think its a 1 1/4" coupler i forgot or 1 1/2".

I think It has to be 1 1/4" Coupler. (Fits snug in 2" sch 40.)
Whats that between the sealing face and the coupler?

Last post,
e1337

Nice cannon. How did you get those grooves? Mind explaining this tape thing?

Well i took the bare coupler, and a drill. Turned the drill and let some tape spin onto it. stuck the coupler on and spun some more tape until i had a snug fit,then used a knife, xacto knive, and a small, sharp screw driver to cut the grooves.

Ah right, I getcha. Very cool, yet ghetto

Yea i had to hold the drill button with my toe lol

Thats a nice huge gun! I hope golfballs don't fly over the Mississippi river from Arkansas and hit me in the head. If they ever do, I will know who it was.

c19o wrote:Yea i had to hold the drill button with my toe lol

Which also features in your photos *sigh*

Nice effort though, i bet property values in your area are plummeting

I updated the first post with a few damage pics and a new video, more to come soon when i get a sprinkler valve on this and a breechload thats not 5" from the valve. (golfballs chip the pipe as they go out )