Alright, thanks, Velocity. Now I don't have to worry about this thing blowing up in my face.

Pyro, I can't help with your question, but I see you know the flash point of paper. There's a few here with such interests, just don't mention in on this forum. Yeah, I kinda figured out from lurking around that, as a general rule, on these forums, fire outside of the cannon=bad. And the name is le...

Be sure to post pictures of the cannon when its done! Will do. We have big plans for this thing, and, knowing us, we'll probably get bored really fast and escalate until either it breaks or we have something that doesnt resemble anything we started with. Yeah, I understand the fireworks. But that s...

Be sure to post pictures of the cannon when its done! Will do. We have big plans for this thing, and, knowing us, we'll probably get bored really fast and escalate until either it breaks or we have something that doesnt resemble anything we started with. Yeah, I understand the fireworks. But that s...

From what I have heard, and average combustion only generates about 50 psi, so I would say your safe. So pvc should hold up. All right, thanks. The reason I'm concerned about this is because I used to be into home made fireworks (rockets, mortars, etc.). And the #1 rule of making mortars is to neve...

First of all, I'd like to say hi, as this is my first post in this forum. Now, down to the topic of this post: What is the pressure limit of 3" PVC pipe? We're using a pressure plate/combustion chamber design my friend came up with (We're both high school juniors who participate in a few engineering...