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Tennis Ball Cannon Answered

Alright, so ive been into making all sorts of cannons whether they are pneumatic or hairspray, and recently I've been wanting to build a pneumatic tennisball cannon. i came across halve a dozen empty fire extinguishers, i am still deciding if i should use one as the chamber. i am using an electronic sprinkler valve and a 2 1/2" barrel i am also getting a 12 volt (dc) car air compressor (125 psi) and i am going to incorporate this somewhere in the cannon, the air compressor is really small so i could make it built in.

i really want to make this cannon portable but i am concerned about the weight of it with the fire extinguisher tank,

Any Ideas?

Discussions

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knuckel
knuckel

9 years ago

nice job, what is the psi you shoot at ? will it fire anything else?

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struckbyanarrow
struckbyanarrow

Reply 9 years ago

i can get it only to about 100 psi because of my air compressor only goes to 200. you can shoot whatever you can fit in the barrel, tennis balls is all that i shoot though.

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knuckel
knuckel

Reply 9 years ago

 nice, and tennis balls is a good selection because thay dont hirt alot like rocks and wooden bullets 

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knuckel
knuckel

Reply 9 years ago

 i just drew this nice little desighn for you i have more coming up today k.

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knuckel
knuckel

Reply 9 years ago

penumic, tennis ball cannon w charger bank.png
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knuckel
knuckel

10 years ago

 can i see some photos ? 

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struckbyanarrow
struckbyanarrow

Reply 10 years ago

here is the cannon, i don't have a photo of the refill canister due to me leaving it in my dads car.

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knuckel
knuckel

10 years ago

with lemonies idea, use a under slung barrel and a clip would be nice, and look at my penumic gun and compare it to some of the gas guns thay have, read my instructabule for better selection

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struckbyanarrow
struckbyanarrow

Reply 10 years ago

i finished my cannon, it is and over under design, 3 /12" chamber, modded 1" sprinkler valve and a 2 1/2' barrel, chrome pressure gauge, shoulder strap, shrader valve, 3L fire extinguisher backpack with chrome pressure gauge, and mini fill valve, i prssure the cannon to 100 psi and the fire extinguisher to 300. psi.

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lemonie
lemonie

10 years ago

The extinguisher(s) will strap to your back, use that for your gas supply - they'll hold a lot.

L

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struckbyanarrow
struckbyanarrow

Reply 10 years ago

thats a good idea then use pvc as the main chamber and it will be attached to the fire extingisher via a pressure rated tube, and a small ball valve. Good idea!
Thanks!