first Ghetto cannon.... RIP.

[stevenarroyo]

only the barrel! was paper towel rolls

[Lentamentalisk]

ya, cardboard is pretty incredible... They make model rocket cassings out of it. Granted they use much thicker rolls, but also they are dealing with pressure, and assuming you don't drop a steel weight down your barrel or add a burst disk, the pressure isn't going to go much over 3psi anyways.

[psycix]

This is not the first cardboard cannon:
Click
That one even works with ammo.

But it does show that the cardboard can more or less hold the pressure.
Cardboard cannons are simple, yet amazing projects.

[Ragnarok]

This is not the first cardboard cannon

I think he meant it was HIS first ghetto cannon.

[stevenarroyo]

sorry yes i meant that it's my first ghetto cannon