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Chimmy Chonga Piston Cannon

Built a pneumatic 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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Unread postAuthor: jmeyer1022 » Sun May 24, 2009 11:13 am

The honk isn't from the cannon itself firing. Some reason when filling it honks fast and is fine from there out. Thanks for the comments again. I've been having trouble with finding time to get it out to shoot/ take pics, sorry.
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jmeyer1022
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Unread postAuthor: Technician1002 » Sun May 24, 2009 11:20 am

jmeyer1022 wrote:The honk isn't from the cannon itself firing. Some reason when filling it honks fast and is fine from there out. Thanks for the comments again. I've been having trouble with finding time to get it out to shoot/ take pics, sorry.


From looking at your pics, it's most likely the sprinkler valve honking on initial fill. This is common as the air tends to lift the diaphragm until enough pressure makes it through the eq port to seal it tight. A slower fill shouldn't honk.
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