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My Big Bang pop guns

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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Re: My Big Bang pop guns

Unread postAuthor: BowerR64 » Mon Feb 24, 2014 3:43 am

I dont have any videos of mine but this is the carbide i use, https://www.youtube.com/watch?v=01miby9VhHc

This one is in a gatorade bottle and it doesnt seem very dangerous? My air volume is about the same but my opening is smaller creating a higher velocity at the muzzle. https://www.youtube.com/watch?v=Icmrh-QtATc

His design is simmilar but i believe he is using like 1-1/2" PVC his is a little larger then mine. He also uses way more carbide then i do. I use a pinch of carbide he uses about 4-5X the amount i do. We wait longer and ours isnt near the same volume of air. 1" tee is the volume of the chamber in ours.

Yellow arrow is pointing to the little scoop we use to dish out the carbide. Its a cut down .22LR shell you can almost count each grain that the scoop holds.
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Re: My Big Bang pop guns

Unread postAuthor: jackssmirkingrevenge » Tue Feb 25, 2014 10:37 am

As long as you keep the quantities tiny I doubt you'll be in any real danger.
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Re: My Big Bang pop guns

Unread postAuthor: BowerR64 » Tue Feb 25, 2014 4:04 pm

Thats the beauty of this stuff is that you cant over do it. Did you see the class room example on the youtube videos?
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Re: My Big Bang pop guns

Unread postAuthor: jackssmirkingrevenge » Wed Feb 26, 2014 8:34 am

BowerR64 wrote:Did you see the class room example on the youtube videos?


Yes... must be awesome to have a professor who is a member of the Bloods!
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