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Quiet BB

Built a BB Machine Gun? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Unread postAuthor: CS » Sun Oct 23, 2005 1:02 pm

I bet he does live in grafton but he said 123 fake blv propably because he didnt want to give out his address for secruity reasons.
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Unread postAuthor: TalonXxX » Sun Oct 23, 2005 3:20 pm

ooooooooo... the hunt is on :lol:
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Unread postAuthor: beebs111 » Sun Oct 23, 2005 3:54 pm

yeah thats what i meant :p
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Unread postAuthor: Cronic » Wed Oct 26, 2005 3:17 pm

Ok man just one question how do you keep the BB projectile in so it doesn't slide out when you point the barrel at the ground, or you just don't point it. Anyway explain please :)
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Unread postAuthor: CS » Wed Oct 26, 2005 5:55 pm

One word: Magnet :wink:
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Unread postAuthor: Cronic » Thu Oct 27, 2005 3:04 am

I've never though of that, damn that's freaky :D Anyway nice gun.
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Unread postAuthor: deathtodeer666 » Sat Nov 12, 2005 4:49 am

i made a some what copy of this last week end, doesnt work to good though becaue I used up all my goog pezio and had to use one of the stupid black ones, makes nice dents in plywood.
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Unread postAuthor: Spudinator » Sun Nov 27, 2005 5:01 am

I'm sorry for such a late reply, been having some computer problems for the past couple months.


Yes, indeed it is a combustion, with a large majority of its parts supplied by a long-stemmed BB lighter; The combustion chamber was the lighter's butane tank, the igniter was (obviously) the lighter's igniter, and the wiring from the Peizo to the spark gap was also from the ignition system in the long-stem lighter.

The butane fuel system was previously a micro butane torch, the head was screwed off right after the venturi (the component that combines the fuel with atmospheric air) and a vinyl hose attached to its end, with the other end attached to the 1/8" ball valve. Opening the ball valve after firing, twisting the torch body to engage fuel flow (leave open for two full seconds), twisting it back off, then closing the ball valve would vent the exhaust gas from the previous firing and fill it with the stoichiometric Fuel:air mix, and would require only one more step, which would be to load a bb.


The butane torch venturi and valve dispense with the nescessity of acheiving the perfect Fuel:Air mix manually; It does it for you. And yes, a magnet was used to keep the BB in place (not visible in pics).

rna_duelers- No :P .
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Unread postAuthor: alphawarrior » Tue Jan 10, 2006 2:33 pm

Could you use copper for the barrel, and is the magnet on the outside or inside.
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Unread postAuthor: Matt982 » Sat Jan 14, 2006 9:27 pm

what size barrel do u use?
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Unread postAuthor: CS » Sat Jan 14, 2006 9:35 pm

Do some searching, google, something before you come on here and ask such a obvious question. People please dont answer such questions, let the noob fend for himself.
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Unread postAuthor: clarky » Sat Jun 10, 2006 7:56 am

would a small combustion cannon like this shoot paintballs if a had the right size barrel
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Unread postAuthor: spud killer » Thu Jun 15, 2006 2:31 pm

that blue thing is a torch and it doesnt ignite on its own
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Unread postAuthor: kris » Sun Jun 25, 2006 7:08 pm

wut kind of barrel did u use?
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Unread postAuthor: ProfessorAmadeus » Sun Jun 25, 2006 7:16 pm

pimpmann22 wrote:Do some searching, google, something before you come on here and ask such a obvious question. People please dont answer such questions, let the noob fend for himself.



that sould answer all of those 3 questions
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