Well, the competition is already over, and no offense, but "pretty sure" isn't good enough. I've heard that shrapnel is a little bit dangerous.

well... a bit of bad news. WE didn't do so well in the competition placing fourth. In the first trial we pumped it up to 90 psi, but then left it to sit for about 40 minutes, a pretty stupid move. When we shot it, we had taken out the gage so we didn't know what psi it was at, but we estimated it to...

It's on Tuesday, but we want to go all out today to see how well it can perform, so do you know the maximum psi we can use with it still being safe. Once again it is schedule 40 pressure rated at 260 psi.

Firstly, it turns out that the the gage on the pump we were using was broken, so we weren't getting an accurate reading. Now, instead of using two handpumps we got a foot pump with an accurate gage. Still pretty impressive, it turns out that at 40 psi it went 110 yards. As for aesthetics, we layed d...

Yea, we already did that. Hopefully we'll be testing today, in like an hour, so we'll try to hit you up with the results. Hotrocks also says that he got some awesome stuff that is specifically designed to attach wood and pvc pipes for the supports. We'll see how it goes.

spud yeti, we're going to be using bike pumps for the air source. Compressors aren't allowed.

Hey everyone, we put almost everything together today and its looking pretty nice. Pictures are soon to come. The barrel is at 45 degrees, but since it six feet we're going to add wood supports. Hopefully we'll do this tomorrow. Hopefully we'll start testing next week, and decide on the modification...

Yea, but we decided that this would probably be more successful. Besides, this will be a hell of a lot more fun to do!

Sorry, misunderstanding.

I think that we're going to end up shooting the puck without any modifications at this point, shooting it with the flat side sideways, so we can get the most air pressure to our surface area. I'm only a little bit concerned about whether or not the puck will flip inside the barrel. Pyro, i didn't qu...

The actual assignment is just to propel a hockey puck as far as we possibly can, any way we want, without using our hands. we decided on the spud gun idea, which is why we have to use a hockey puck. Any way, I don't fully understand the missle cone idea, but we were thinking we could maybe mold some...

Oh yeah, just a reminder, we can't shave down the puck, we can only add to it.

Hotrocks, i think the missle idea is bad. The only reason a bullet doesn't flip is because it is rotating, and since the puck won't be rotating, it can flip just as easily, making even less aerodynamic than its original form of a puck.

Hey Everybody, I'm also in Hotrock's Science group for making the puck spud gun, but I have a few questions about measurements. See, the puck is almost exactly 3 inches in diameter, so if we were to use a three inch barrel, it would be an incredibly tight fit right? Even with lubing down the barrel ...