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First Potato Cannon! [pics]

Built a combustion cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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First Potato Cannon! [pics]

Unread postAuthor: xpiC » Wed Jul 02, 2008 3:58 am

Hello
First cannon not finnished still has to have handle and more paint added
This is my first cannon.
new photos and video/damage up soon!

Thank you!
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Attachments
cannon.JPG
BBQ.jpg
cannon.jpg
laying down.jpg
Last edited by xpiC on Wed Jul 02, 2008 7:54 am, edited 1 time in total.

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Unread postAuthor: FishBoy » Wed Jul 02, 2008 7:30 am

where/what is the ignitor? Get some more pics.
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Unread postAuthor: Thursto » Wed Jul 02, 2008 8:09 am

The ignitor is on the bass of the cannon, attached to the screw lid.

Look Carfuly before posting Usless comments.

Btw, its a Piezlo Sparker i beleive. (Push it and it makes a spark :roll: )

Might have got the name wrong but eh.
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Unread postAuthor: xpiC » Wed Jul 02, 2008 8:11 am

I think it is a Piezlo Sparker,
It works great. and it was easy to wire up duel spark.
I just havnt put it in,
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Last edited by xpiC on Wed Jul 02, 2008 8:30 am, edited 1 time in total.

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Unread postAuthor: spudkilla » Wed Jul 02, 2008 8:39 am

That's a really bad idea to mount the sparker on the endcap. If you fuel the cannon and load it, whats gonna happen if you drop it? Yeah...Kaboom!
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Unread postAuthor: xpiC » Wed Jul 02, 2008 9:04 am

spudkilla,

Yeah i know, i only mounted it there as a last resort.
I have another cap and im planning on mounting the sparker on my handel i just havnt put it on yet its still drying.
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Unread postAuthor: pat123 » Wed Jul 02, 2008 9:08 am

looks nice, but those threads look really short and that looks like a reducer instead of a bushing.
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Unread postAuthor: SpudFarm » Wed Jul 02, 2008 9:10 am

it is the same as i used on my first gun, my cap blew.
hurry up on removing the ignitor.
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Unread postAuthor: xpiC » Wed Jul 02, 2008 9:11 am

Yeah its nothing to big,
i plan on building something a little more bigger later on
but this was just a quickie
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Unread postAuthor: starman » Wed Jul 02, 2008 9:13 am

It's called piezo (pee - zo). The PVC/ABS pipe and connector parts look thin and weird. Are you sure they are up to the task of keeping you safe and out of the emergency room? Where are you located xpiC?

Because of its short length, this little puppy will be loud.
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Unread postAuthor: xpiC » Wed Jul 02, 2008 9:15 am

Brisbane, Australia

This cannons not ment to be the best haha its my first one ive seen worse :P
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Unread postAuthor: vovka351 » Wed Jul 02, 2008 9:57 am

Nice... i have yet to build a combustion of larger bore than .75 inch :lol:

by the way, can you get your hands on a disposable camera? you can make much better ignitors out of those.
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Unread postAuthor: bigbob12345 » Wed Jul 02, 2008 10:45 am

that doesnt look pressure rated at all
If I were you I would just scrap it and make another one out of pressure rated parts(if they are avaiable to you)

But I guess its a decent cannon...for your first
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Last edited by bigbob12345 on Wed Jul 02, 2008 11:28 am, edited 1 time in total.
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Unread postAuthor: starman » Wed Jul 02, 2008 11:00 am

xpiC wrote:Brisbane, Australia

This cannons not ment to be the best haha its my first one ive seen worse :P



I'll defer judgement on the PVC stuff to someone in the Oz/NZ locale...it does look suspicious though.

Your cannon doesn't have to be the best...you just don't want it hurting you.
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Unread postAuthor: xpiC » Wed Jul 02, 2008 9:11 pm

It's presure rated PVC?
I'm pretty sure
Yeah im thinking of making my new one out of ABS?
But im not sure.

Any idea's?
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