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Im New Here, This Is The First Spud Gun I Have Ever Made

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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Im New Here, This Is The First Spud Gun I Have Ever Made

Unread postAuthor: car0010 » Thu Oct 09, 2008 5:59 am

Hey Gyz, I am New To "Spudfiles"

This is my very first spud gun
i think it looks pretty cool but tell me the truth bout it
if you have any ideas on what color i should
paint it or make any mods on it plz say
thanks
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Attachments
DSC00028.JPG
this is my spud gun
DSC00029.JPG
this it the button on the BBQ igniter i used
DSC00030.JPG
tin cans i am goin to use as ammo
DSC00030.JPG (39.45 KiB) Viewed 1086 times
DSC00031.JPG
another view of my spud gun =D
DSC00032.JPG
this is the interior of the gun also showing the other end of the BBQ ignition

car0010
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Unread postAuthor: jrrdw » Thu Oct 09, 2008 9:09 am

Have you tryed it yet?

Welcome to Spudfiles.
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Unread postAuthor: Pilgrimman » Thu Oct 09, 2008 9:10 am

That is eerily similar to my first, but better constructed :D The only issue I see is fueling. It might be hard to get the right mixture in that size of chamber if it is spray and pray. You'll probably find something that works, though. Nice first build! For the future, think about a chamber with a reduction to the barrel.
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Unread postAuthor: Blitz » Thu Oct 09, 2008 10:38 am

It would have been a bit better to tap a hole where there's more than one wall of PVC, bt still not bad. What's the diameter, 3 inches?
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Unread postAuthor: psycix » Thu Oct 09, 2008 1:23 pm

Looks good.
The less fittings there are, the less fittings can fail. Simple and safe.

How far do you shove down the ammo?
In other words: Whats the C:B ratio?
The cool thing about this gun is, that as long as you dont build in a "spud stopper" (a bolt to prevent the ammo of going into the chamber), the C:B value is variable and you could find the optimum for different types of projectiles.
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Till the day I'm dieing, I'll keep them spuddies flying, 'cause I can!

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Unread postAuthor: car0010 » Fri Oct 10, 2008 2:16 am

Hey Gys the diamater of the barel is 90mm idk hw much it is in inches cos i use cm and mm i tested it today and made up somee new ammo cos the cas were too small so i got a roll of toilet paper and teaped it u with duct tape it shot approxamaty 132meteres i shove the ammo about 30mm from the back it has good compsression and i will soon post a video on you tube for you dsnt need much spray to go far

a bit loud tho XD the nehbours called the cops coz the thought i wass shooting the wildlife of sufin

any ideas on paint and modding would be great

thanks
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Unread postAuthor: mrbadexample » Fri Oct 10, 2008 3:08 pm

like my "one tube" design, yet to be made. you only need to make a "stop" to define the barrel and combustion chamber.

drill a hole where you want the barrel to end, insert a bolt and nut as a "stop".

it is a simple design, and it should work well, just figure out you C:B ratio.

KUDOS on your KISS design.
(i'm unemployed at the moment, food comes before fun, i will do a few videos tomorrow, try out my "pea shooter" barrel, 2.33:1 C:B ratio, should kick major a$$.)
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Unread postAuthor: Cosmic Muffin » Sat Oct 25, 2008 8:25 am

mateee nice build. im not usually in to combustion, but yours caught my eye.. i havent seen a cannon with no chamber reduction before :wink:
i saw that all the parts are like the stuff i can get here in australia, and the other guys from America and everywhere else have like, different looking DWV fittings, if you know what i mean. i was wondering of your from Oz too?
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Unread postAuthor: elad311 » Sat Oct 25, 2008 12:05 pm

Welcome to Spudfiles,

well.. how powerful is it?
if it's weak, then just use a bigger chamber.
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Unread postAuthor: john bunsenburner » Sat Oct 25, 2008 1:13 pm

welcome,

we seem rather similar, im metric too and im pretty new

i like your simplicity and if you said it shoots over 100meters then its very good, especially if you are not using some kind of special ammo but just cans and toilet paper rolls, what kind of prpellent are you using?
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