haha u want overpriced check out his latest contraption, the bolt action semi auto tennis ball launcher. $1000!!!!! a grand for a tennis ball launcher with semi auto functionality! buy a god damn real gun instead! in australia you could buy a real pistol for $700 You can build your own AK-47(semi-a...

I guess that the bottleneck causes the burning gasses to speed up and ignite the other chamber faster. One question though, whats the KNO3 for? Very nice, and big. I just about shat myself when I saw that beast. The barrel runs throught the middle of the entire thing, up until the top where the bac...

saladtossser wrote:wow that's freakishly awesome!
is that a mirror you are in front of?

Yeah, it's a mirror, although I had to do a horizontal flip to make it look right.

http://phexus.net/images/potatogun/ghettoblaster.jpg This is my first cannon, still working on it. It uses propane and has a built in air tank to clear the chamber, It could also be used to add more air to the chamber too, I guess. The cannon can be loaded from the back or the front, depending on w...

I have a bbq on mine and it works fine, if it doesn't work, it's usually because I have too much fuel in the chamber. But once I get the propane to air ratio right, it works every time.

it depends on your cannon, I would go for the 16oz propane tanks, they are super cheap at wallsmart, and you get 4oz more per a thank, and I think they actually cost less per a tank, kind of weird wouldn't you say....

Oh, good point

sounds like something a capacitor would do.

check the home despot, I remember getting some there...

The other day I was at my local dump looking for things for the cannon I'm making and I found a bunch of old BBQ grills they all had the igniters in them It beats paying $12 for a new one...

I'm trying something were I have a air tank on the front part of the cannon and then have a pipe/ballvalve attached to it and to the combustion chamber (it also doubles as a carrying handle). http://www.phexus.net/images/potatogun/pg7.jpg Still working on it, but it should be done soon. The tube thi...

It usually helps if you know how to spell the thing that you're asking about. Use a spell checker, it's good netiquette...

I don't know how you were using it, but when I use it, I make sure that the windex bottle is on the mist setting and give it a full spray of the campfuel. I usually hold the cap in one hand and the spraybottle in the other. After I spay it in, I quickly cap it. If it doesn't fire the first time, I u...

That thing is huge!

oh, I understand what you mean about them being tappered, I mean actually cutting the threads off so there are only say about 3-4 threads on it, I cut about half of them off but there is still a gap but I'm not sure if it will stay on if I fire it.