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-=[GBC]=- Golf Ball Combustion

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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Is this a good cannon?

Hell yes im making one
3
38%
Nice
4
50%
Bit dodgey
1
13%
 
Total votes : 8
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-=[GBC]=- Golf Ball Combustion

Unread postAuthor: Jedwards » Fri Nov 17, 2006 7:02 pm

This is my first post on Spudfiles. This is my simple yet powerful combustion cannon. It is all made with PVC Pressure rated pipe and uses a BBQ sparker. Its main ammo is golf balls but i use polystyrofoam plugs as well too shoot anything from rocks to spears.

Please feel free to comment or ask questions about the cannon.

I am planing to make a pneumatic cannon in the next couple of weeks so any tips/pointers/suggestions would be muchly appreciated!!! :D :D :D
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Attachments
gun.JPG
The gun with GB's, Fuel and a foam plug. (Foam plugs work for about 2-5 shots then best use another)
Combustion chamber.JPG
The combustion chamber.
Me shooting.JPG
A colourful picture of me shooting it!
Me shooting.JPG (18.78 KiB) Viewed 1099 times
Holes in tree.JPG
These are the holes that a golf ball leaves in a tree! i was shooting glass it went straight through and hurt the tree pretty bad. (Hehe the richotes were a lil scary.)
Golf Ball indent.JPG
The front of a street sign!
Dent at back of sign.JPG
The back of a street sign!
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Unread postAuthor: ProfessorAmadeus » Fri Nov 17, 2006 7:14 pm

Damn! Thats strong for being so small! Use the barrel for you pnuematic and it would be way stronger than this. Dont shoot at street signs and put a shirt on. Please.
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Unread postAuthor: Jedwards » Fri Nov 17, 2006 7:56 pm

Indeed, sorry about the signs sort of didnt think. I will use 40mm for my pneumatic but what i need to know is weather to mod my sprinkler valve or not?
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Unread postAuthor: ProfessorAmadeus » Fri Nov 17, 2006 7:57 pm

Its all up to you :) :)
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Insomniac wrote:Hey why am I a goose???? Why not somthing a little more awe inspireing, like an eagle or something? LOL

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Unread postAuthor: Flying_Salt » Fri Nov 17, 2006 8:10 pm

Speaking of which, will sprinkler valves preform reasonably well in an un-modded state?
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Unread postAuthor: ProfessorAmadeus » Fri Nov 17, 2006 8:15 pm

Better than a ballvalve at least...
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Insomniac wrote:Hey why am I a goose???? Why not somthing a little more awe inspireing, like an eagle or something? LOL

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Unread postAuthor: Jedwards » Fri Nov 17, 2006 8:28 pm

is it ok for in a pneumatic gun the air to go through the stock before shooting the projectile?
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Unread postAuthor: experament_u2 » Fri Nov 17, 2006 8:30 pm

hey J wats up thats a nice gun i nerever rlized it was like that and so clean u gota tell me the dementions 8)
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Unread postAuthor: schmanman » Fri Nov 17, 2006 8:31 pm

Its ok, but it will reduce the power, and flow. It's something you want to avoid.Image

edit: did you use primer at all, or was it the clear kind?
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Unread postAuthor: Jedwards » Fri Nov 17, 2006 8:37 pm

Yeah i used primer but i have painted it in a dull skull white.

Hey ben, this what u want?
40mm barrel, 50mm conbustion chamber, the part were the sparker is is also 40mm. Its length together is about 42" (107cm)
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Unread postAuthor: experament_u2 » Fri Nov 17, 2006 9:45 pm

thanks for that chap and how good is the 40mm fit for golf balls 8)
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Unread postAuthor: nicholai » Fri Nov 17, 2006 10:53 pm

i would definatly reccomend modifying the sprinkler valve, it makes it so much more powerful for only a few dollars extra.
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Last edited by nicholai on Sat Nov 18, 2006 12:02 am, edited 1 time in total.
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Unread postAuthor: MisterSteve124 » Fri Nov 17, 2006 11:14 pm

Those are some nice shots. Did the tree have the red marks a few days after or like immediatly? That is really cool. Great job for your first cannon it has a cool design and is very clean. Where did you get 40mm pipe? I guess you don't live in the U.S.
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Unread postAuthor: Scope » Fri Nov 17, 2006 11:56 pm

Thats a realy nice looking cannon... Good Job.
I recomend modding the sprinkler. By the time you buy the switches the box the wiring and the electronics it prob would be the same price to get a fitting and a airgun anyway. And if you did a gas through stock it would reduce the efficiancy.

Basically, i just repeated what other people said but i didnt realize that till after i wrote it :-D
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Unread postAuthor: SpudStuff » Sat Nov 18, 2006 12:14 am

Dang that looks quite nice! The chamber seems a bit small. With a larger chamber you will get more power and you might be able to put a hole in that road sign.
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