I would be careful blowing into the ignition hole. I had an accident 55 years ago when my cannon would not light, it then flared out through the ignition hole and burned me badly.
@0:46 you can see my dad's hand touch the brass piece sticking out of the cannon (it is more visible before I start to move the camera there) and that piece is a flint striker from a lantern. I'll add the build plans to the video description.
I'm pretty sure we used schedule 40, although a lot of it was scrap from a plumber friend so I won't swear to that. It is a modified version of William Gursetlle's plan from his book "Backyard Ballistics" if you want to read his directions.
nice looking cannon!! in holland we also do carbide cannons but than much larger and with a soccer ball as a round and for stopping gas to come out of the tank probably you could find something like that if you search for : carbid kanon
hi there ,serious question here .how long can you have the gas in there?i mean will it explode the cannon?or is it safe for it to be held untill fired?i ask this as im considering using this in my rc boat for display guns that i want to fire when i want to.also is it safe to glue the carbide to plastic?
It is safe to keep in there. The biggest concern would not be it prematurely firing, but depending on how tight a seal you had inside of it you coul dend up with failure due to pressure. Using a small quantity of calcium carbide should help with that though. Two other minor concerns. 1) It has been our experience that unless there is some way to vent the exhaust it usually will only fire once and 2) if you generated too much acetylene gas inside of it and it wasn't well sealed you could end up pushing out most/all of the normal air and not having enough oxygen for a good combustable mixture. Nothing that a little experimentation with trial-and-error wouldn't solve. If you do try it and get it working, please be sure to share a video.
I would be careful blowing into the ignition hole. I had an accident 55 years ago when my cannon would not light, it then flared out through the ignition hole and burned me badly.
Any chance of getting step-by-step guide to make the cannon??
thanks sully for the reply.i will do a trial asap.
i made one but barely getting any explosion when i ignite .. any
ideas why?
@0:46 you can see my dad's hand touch the brass piece sticking out of the cannon (it is more visible before I start to move the camera there) and that piece is a flint striker from a lantern. I'll add the build plans to the video description.
hi sully, is it schedule 40 or 80 pvc
I'm pretty sure we used schedule 40, although a lot of it was scrap from a plumber friend so I won't swear to that. It is a modified version of William Gursetlle's plan from his book "Backyard Ballistics" if you want to read his directions.
nice looking cannon!! in holland we also do carbide cannons but than much larger and with a soccer ball as a round and for stopping gas to come out of the tank probably you could find something like that if you search for : carbid kanon
Now, That's Badass!
hi there ,serious question here .how long can you have the gas in there?i mean will it explode the cannon?or is it safe for it to be held untill fired?i ask this as im considering using this in my rc boat for display guns that i want to fire when i want to.also is it safe to glue the carbide to plastic?
It is safe to keep in there. The biggest concern would not be it prematurely firing, but depending on how tight a seal you had inside of it you coul dend up with failure due to pressure. Using a small quantity of calcium carbide should help with that though.
Two other minor concerns. 1) It has been our experience that unless there is some way to vent the exhaust it usually will only fire once and 2) if you generated too much acetylene gas inside of it and it wasn't well sealed you could end up pushing out most/all of the normal air and not having enough oxygen for a good combustable mixture. Nothing that a little experimentation with trial-and-error wouldn't solve.
If you do try it and get it working, please be sure to share a video.