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50mm bore *UPDATED* new 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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50mm bore *UPDATED* new pics

Unread postAuthor: Cosmic Muffin » Mon Dec 15, 2008 12:34 am

Gday guys

this is my first posted combustion.
constructed from PVC pipe - DWV
the chamber is 90m reduced to 50mm via a bell reducer and has a detachable barrel which is around 2.5 ft.
the clean out cap is female - a couldn't find any of those male ones in Bunnings :(
ignition is your standard BBQ ignition which is installed in the handle made from 25mm pipe and fittings.
the chamber has another cut down piece of 90mm pipe which i thought might make it stronger.
i have a fan sitting in the shed with all the circuit housing but i haven't got a 9v battery attachment so i wont put the fan in just yet, ill probably post more pics when that is done.

here are some pictorias

<a href="http://tinypic.com" target="_blank"><img src="http://i33.tinypic.com/2crq23c.jpg" border="0" alt="Image and video hosting by TinyPic"></a>

<a href="http://tinypic.com" target="_blank"><img src="http://i37.tinypic.com/2lsefro.jpg" border="0" alt="Image and video hosting by TinyPic"></a>

<a href="http://tinypic.com" target="_blank"><img src="http://i37.tinypic.com/2l8i7fd.jpg" border="0" alt="Image and video hosting by TinyPic"></a>

<a href="http://tinypic.com" target="_blank"><img src="http://i37.tinypic.com/2jfav0m.jpg" border="0" alt="Image and video hosting by TinyPic"></a>

<a href="http://tinypic.com" target="_blank"><img src="http://i37.tinypic.com/5bcoqq.jpg" border="0" alt="Image and video hosting by TinyPic"></a>

*NEW*

these are of the chamber fan and the circuit housing etc

<a href="http://tinypic.com" target="_blank"><img src="http://i36.tinypic.com/16iw7s6.jpg" border="0" alt="Image and video hosting by TinyPic"></a>

<a href="http://tinypic.com" target="_blank"><img src="http://i38.tinypic.com/35ceber.jpg" border="0" alt="Image and video hosting by TinyPic"></a>

<a href="http://tinypic.com" target="_blank"><img src="http://i35.tinypic.com/290st3q.jpg" border="0" alt="Image and video hosting by TinyPic"></a>

<a href="http://tinypic.com" target="_blank"><img src="http://i33.tinypic.com/2gwdpwy.jpg" border="0" alt="Image and video hosting by TinyPic"></a>

constructive criticism is welcome :D
cheers guys
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Last edited by Cosmic Muffin on Tue Dec 16, 2008 12:46 am, edited 3 times in total.
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Unread postAuthor: FordGtMan » Mon Dec 15, 2008 12:44 am

Nice cannon. I love those garden hoses to complete the green look :)
Looks fit for an propane system too
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Unread postAuthor: Cosmic Muffin » Mon Dec 15, 2008 12:50 am

yer i didnt want to scratch the paint, but the green does compliment the gun i spose :wink: well i have been meaning to make one but the steel pipe costs heaps where i am at $1 per cm. and i still need to find a gauge and propane to thread adapter (or whatever you call that little brass fitting :lol:)

cheers for that
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Unread postAuthor: FordGtMan » Mon Dec 15, 2008 12:55 am

Holy crap where do you live? a buck a cm? :shock:

And the gun reminds me of a lizard somehow with that hose. Maybe call it godzilla? :lol:
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Unread postAuthor: Cosmic Muffin » Mon Dec 15, 2008 1:01 am

haha yer nice name.
yer im from Australia
and at bunnings its that expensive...
bloody rip.
and copper is also dearer than gold nowadays :lol:
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Unread postAuthor: starman » Mon Dec 15, 2008 1:36 am

I like the 2 tone paint job there and the garden hose covered hose clamps. Once you get a fan in there, you could replace the back cleanout plug with a ball valve vent, Then, setup external propane meter with quick connects...like this...

Image

I like the ergo handle as well. Overall nice cannon.
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Unread postAuthor: Cosmic Muffin » Mon Dec 15, 2008 1:55 am

i was looking at them the other day actually, on your noise cannon thread, they are very nice cannons btw.
this quick connect things are a great idea. did you think of that yourself?
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Unread postAuthor: Xxplosive42o » Mon Dec 15, 2008 2:01 am

I love it Cosmic! Good work mate! I love the garden hose compliment especially. It is built pretty solid and it's simplistic nature makes it very user friendly. A++ Keep the good work up.

Cheers! Xxplosive42o 8)
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Unread postAuthor: starman » Mon Dec 15, 2008 2:02 am

Cosmic Muffin wrote:i was looking at them the other day actually, on your noise cannon thread, they are very nice cannons btw.
this quick connect things are a great idea. did you think of that yourself?


Thanks!! I thought of the concept of external metering myself, only to find several other people had already done it... :roll: I used HomeDepotPro's sprinkler pipe solution...was cheap and easy.
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Unread postAuthor: ALIHISGREAT » Mon Dec 15, 2008 2:55 pm

I love the garden hose, it gives it an individual look :wink:

anway...i want damage picz!!! :twisted:
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Unread postAuthor: paaiyan » Mon Dec 15, 2008 3:25 pm

I like the cannon, nice and clean. I'm looking at that last picture though. Something looks cracked, though I could be mistaken. It's not unheard of.

Also:
Che Guevara? Really?
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Unread postAuthor: nibbler125 » Mon Dec 15, 2008 3:39 pm

the garden hose looks great. it remindes me of caddy shack for soe strange reason... now i am getting some ideas on a caddyshack inspired spudgun. maby that will be my next build
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Unread postAuthor: captaincrash17 » Mon Dec 15, 2008 6:30 pm

Nice cannon man!
I'm also going to use that handle idea on my new cannon i'll be building in the upcoming weeks.
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Unread postAuthor: Cosmic Muffin » Mon Dec 15, 2008 8:06 pm

starman wrote:Thanks!! I thought of the concept of external metering myself, only to find several other people had already done it... :roll: I used HomeDepotPro's sprinkler pipe solution...was cheap and easy.

well its a damn good job anyway, so good onya for that :wink:

ALIHISGREAT wrote: anway...i want damage picz!!!

all in good time my friend, all in good time :D


nibbler125 wrote: the garden hose looks great. it remindes me of caddy shack for soe strange reason

lol what is caddy shack? im getting ideas of golf and small seaside houses haha.

paaiyan wrote: I like the cannon, nice and clean. I'm looking at that last picture though. Something looks cracked, though I could be mistaken. It's not unheard of.


thanks mate, yer that.. what you see there is not a crack, its a cut (very bad using tin snips) that is the "internal sleeve" that i thought might lower the chances of me becoming full of PVC :P
what about Che? is he against the rules on this forum or something ? :p

i have now installed the fan 8) so yes there will come pics, and of damage too :twisted:
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Unread postAuthor: Xxplosive42o » Tue Dec 16, 2008 12:36 am

How is that fan held in place? Do you have a large picture? I like how its right at very aft end of the chamber. It seems to be held in place very snug as well. For my cannon I simply sanded down the corners and slid the fan in tightly. But as I look into my chamber through the cleanout it appears to be moving around a bit.

Anyways, love the new pics. It's still an A+ 8)



*p.s go shoot some plywood with some golfballs and film it ya? hehe*
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