first timer
Posted: Sat Dec 03, 2011 2:40 am
have just built my first cannon but its made with dwv pvc what is the chance of explosion and pain?
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Posted: Sat Dec 03, 2011 2:56 am
Pictures, dimensions and even the basic information of whether it's pneumatic or combusion would be most helpful for a useful answer.
Posted: Sat Dec 03, 2011 3:37 am
combustion chamber is two foot by 4 inch barrel is 1.5 metres by 2 inch with a piezo igniter
Posted: Sat Dec 03, 2011 3:40 am
Technically it should hold pretty well as long as your fitting is sound and your projectiles aren't too tight or heavy.
Posted: Sat Dec 03, 2011 3:49 am
sweet well its cureing overnight and will test tomorrow
Posted: Sat Dec 03, 2011 9:47 am
If you're using a cleanout cap on the end, don't drill through it to place the igniter. Better yet, fill the cleanout cap with body filler or fiberglass/resin. They tend to blow up more than anything else, and can potentially cause injury (especially if you're shouldering the thing).
Posted: Sun Dec 04, 2011 1:04 am
just test fired about 20 spuds huge success worked perfectly i think this is my new hobby for sure. hopeing to learn a lot more about this and think this site will help me do that no worries.
Posted: Sun Dec 04, 2011 2:31 am
Get some pictures up and we'll be able to give you a pretty good idea about the cannon's structural integrity. It's hard to say from your description as little things such as drilling a hole through a single layer of PVC, or the stuff Fnord mentioned, can have a significant effect on the cannon's safety.
You're not from NZ are you? Just going by the 'kiwi' username.
You're not from NZ are you? Just going by the 'kiwi' username.
Posted: Sun Dec 04, 2011 3:48 am
yeah im from nz. how do i put a pic up? new to this computer thing.
Posted: Sun Dec 04, 2011 3:50 am
Good to see a fellow Kiwi on the forum, there's only a few of us.
As for posting images:
http://www.spudfiles.com/forums/posting ... 13190.html
As for posting images:
http://www.spudfiles.com/forums/posting ... 13190.html
Posted: Sun Dec 04, 2011 4:18 am
Posted: Sun Dec 04, 2011 5:54 am
I would be cautious of that rear plug, the threads aren't really made to take pressure and it's a significant surface area - as Fnord suggested earlier, think about fixing it in place permanently.
Posted: Mon Dec 05, 2011 2:07 am
thanks also is there sum type of reinforceing tape i can wrap the combustion chamber with to lessen damage should something go wrong?
Posted: Mon Dec 05, 2011 2:12 am
Duct tape won't hurt, chicken wire is also an option - but the best way to be safe is to simply use pressure rated pipe in the first place.kiwi001 wrote:is there sum type of reinforceing tape i can wrap the combustion chamber with to lessen damage should something go wrong?
Posted: Tue Dec 06, 2011 4:39 am
thank you to those that took the time to give me advice happy spudding to all