Willdebeers wrote:yeah sure qwerty. Oh and just use a quick disconnect fitting.

Which is what? :p Googled it, but how do you keep the air inside then? doesnt it need to be a one way valve? or do you mean to use those on the car tire valve?

Hmm, what nipple can i use to fill it with? Cant use those car valves, we got those tiny air hoses and thats about it

Willdebeers wrote:Do you work with imperial or metric?

We use metric, but can always calculate

qwerty wrote:Were are you from because if you are Uk i suggest making a copper ballvalve gun or if the use a pvc ballvalve gun.

Im from norway ^^

did you ask you teacher? and what do you plan on shooting at what?
We did ask him yes, and he said we were free to make it in our free time :p Im on elautomation, and were we are its just 3 classes and some woods behind.

Btw, is it possible to get an adapter from car tire valve to those small air ...

c11man wrote:are you sure you would not get in trouble for this? cuz most shcools dont like weapons.....

Pretty sure about that yes :p

I tried to make a quick idea in paint for a small gun, would this work?
The nipple is for one of those small air hoses, so i can connect it at school to fill it. How big does the tank thing need to be? And what do i need to make it so it can hold 100psi?

Willdebeers wrote:Just make a ball valve pneumatic. They are cheap, easy, and provide moderate power. You could step it up to a piston valve, but that is quite advanced.

Is it any tutorials for this? :p

Well, it doesnt have to be a super advanced thing, just something to have fun with on school I dont know much about this, maybe you(or someone else) can just come with some suggestions which is not too expensive. If it is any tutorials that would be great

Hello there, im new to this, and me and some friends want to make a air cannon. Nothing too fancy, just something cheap. We got 100psi at school that we can use for anything so that would be our power. Any suggestions on what we could make?