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My silenced spud gun

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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My silenced spud gun

Unread postAuthor: xinstride » Thu Jul 28, 2005 2:43 pm

My gun with threaded chamber for east sparker maintenance, 2in threaded cap for fuel conservation and threaded barrel.

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My silencer works pretty well, after lots of experimentation i was able to reduce the noise level by about 70% without affecting range, (about 200 yards)
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Unread postAuthor: boilingleadbath » Thu Jul 28, 2005 3:33 pm

What do you mean by "reduced the noise level by 70%"?
Like, what units are you using? Decibells, released energy, "apparent sound"?
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Unread postAuthor: CS » Thu Jul 28, 2005 5:22 pm

He means that he made his gun 70% queiter and didnt sacrifice any performance (range).
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Unread postAuthor: saladtossser » Thu Jul 28, 2005 6:14 pm

Hey, another abs user! i like it, but by saying 70% is nothing, tell us what it sounds like, a shotgun? firecracker? ballon popping?
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Unread postAuthor: xinstride » Thu Jul 28, 2005 6:54 pm

The silencer takes all the high end sound off, so all you hear is a rush of air and a minor bang, like a car backfiring only quieter.
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Unread postAuthor: CS » Fri Jul 29, 2005 11:27 am

Does any one know what type of silencer is better? The ones that you slip on the end of your barrel or the type that xinstride has. The silencer looks nice. I bet it took alot of time to drill out all the holes.
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Unread postAuthor: xinstride » Fri Jul 29, 2005 3:25 pm

pimpmann22 wrote:Does any one know what type of silencer is better? The ones that you slip on the end of your barrel or the type that xinstride has. The silencer looks nice. I bet it took alot of time to drill out all the holes.


Wrap graph paper around the pipe and centerpunch every other axis, then remove graph paper and drill. It takes about 30 mins.
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Unread postAuthor: saladtossser » Fri Jul 29, 2005 3:31 pm

well u done it very neatly, mine is crap.
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Unread postAuthor: Thanatos » Fri Jul 29, 2005 6:12 pm

If you have read any other combustion cannon posts you will notice that the size of the chamber alone does not determine how well a gun will perform. While it can help depending on what exactly you are making, you also need to consider what sort of propellant(s) you are using and in what proportions. And why did you feel it necessary to post that question here?
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Unread postAuthor: spudshot » Fri Jul 29, 2005 8:03 pm

zeppie you asked that question in 2 topics, please only ask it in one place

EDIT: 3 topics not 2
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