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this is my potato canon and is making 384 fps and 120 meters by seconds!!!There is aproximatively 350 joules of power.(all this is i theoric)
As you can see its the most simple to made its only cost me 25 $for all including tire valves and glue.

piece you will need:

(2x) 1.25 inch tube by 2 foots.
1.25 inch ball valve
1 1.25 inch cap
a tire valve
VERY IMPORTANT!!!: CHAIN LUB in can to use on the ball valve its will make it open much faster.


If you have one you will be surpised by is speed and accuracy. its explode on a wall after 150 meters in like 1.5 seconds

pictures and videos would be required to back your claims up.

From the sounds of it, you have a 2 feet of 1.5" as your chamber a ball valve, then another 2 feet of 1.5" inline.

Also another problem you posted this in the BB/Airsoft/Pellet Gun Discussion, and i beleive its not a bb or an airsoft gun so why post in this section?

It would of been ideal to of posted this topic in the Pneumatic Cannon Showcase or Pneumatic Cannon Discussion area wouldnt you think?

ho ho sorry its my first topic i did not know then it was in the airsoft section. pictures are coming soon

Haha lol no problems.

We are all newbies at some stage in our lifes

Yes pictures are very apreciative around here. It helps us to understand what people are on about half the time.

If you need help with uploading picutres:
http://www.spudfiles.com/forums/posting ... 13190.html

Thursto wrote:Haha lol no problems.

We are all newbies at some stage in our lifes

Yes pictures are very apreciative around here. It helps us to understand what people are on about half the time.

Yea, pictures because nobody knows what Thursto is talking about!

Welcome to Spudfiles.

sounds like a nice beginer project....

welcome to spudfiles

EDIT: yay, 600 posts!

so here is the"picture" and trust me when i say its making 120 m/s at 100psi
i tryed it at 120 and its maked BOOM! And all the neightbour came to see what was that sound.

well my first ever pneumatic had a ballvalve... I don't know why people hate BV guns... ok when compared with a piston valve they have slower opening time but they are cheaper, easier to build and their flow is higher

it seems it's a nice gun but It's hard to say becasue there is just a schematic.... think when they said 'picture' they meant a real picture not a schematic

I agree with was poland-spud said.

but with chain lubber its open realy fast and have a much bigger flow.
Its only have to be cleaned often because the potato jug go into the ball valve. but else it very effiency.

well you don't have to use potatoes... infact I fired only two potatoes from all the guns I ever had...
lube does increase opening time but it doesn't have anything to do with flow

plizz post some pics if you can... that's what you do when you post your guns

im sorry but i cant my camera is having serious problems.
it dont take pictures. the buton is surely broken...

Demon wrote:im sorry but i cant my camera is having serious problems.
it dont take pictures. the buton is surely broken...

then if you want to provide us with pics at a "low" cost, you should probably head down to the nearest walmart, go in and buy a disposable camera, take some pics of your gun, then get the pics developed, then take the developed pics and scan them to your computer, then post on spudfiles so we can see lol.

or you can just buy yourself a new digital camera....got any in mind? I'm a camera guru...

Simple yet effective and inline ball valve cannon will definitely do the job. I would love to see pictures when your camera stops having serious problems.by the way are you using a translator or does your english just suck??

STHORNE wrote: I'm a camera guru...

My dad just got a D300