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Dry ice

A place to ask general spud cannon related questions.
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Unread postAuthor: jimmy101 » Fri Jul 27, 2007 1:08 pm

It ain't going to "save us alot of money if it works". Dry ice is expensive and it cannot be stored for long periods of time.

Absolutely no advantage to using dry ice in place of a CO<sub>2</sub> cylinder. Indeed, much cheaper and more effective to use the cylinder than the dry ice.
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Unread postAuthor: DYI » Fri Jul 27, 2007 1:10 pm

I will try it if I can get some dry ice and convince people I'm not making bombs with it. The only real barrier is that McMaster won't ship to Canada, and I wouldn't trust hardware store fittings with 800-900 psi. Thus, I can only get shipments from McMaster about once a year when my friend from Georgia visits, and the pipe and fittings to make this device could end up costing a lot of $$$.
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Unread postAuthor: Alabaster » Fri Jul 27, 2007 1:13 pm

How do you make bombs with it?
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Unread postAuthor: DYI » Fri Jul 27, 2007 1:15 pm

We aren't allowed to discuss dry ice bombs on this website. Read the rules.
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Unread postAuthor: Pilgrimman » Fri Jul 27, 2007 1:37 pm

Dry ice in that application is illegal in Oregon (It's considered a bomb :shock: ), but I don't know about other states/countries.
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Unread postAuthor: frankrede » Fri Jul 27, 2007 1:41 pm

Alabaster wrote:How do you make bombs with it?
Areen't you just full of interesting questions lately?
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Unread postAuthor: Alabaster » Fri Jul 27, 2007 1:47 pm

well i do have other small side hobbies but hardly any acess sence i am 16.i know wat u meant know DYI but there not considered illegal here sence there is way easier stuff to make a acutaul bomb.
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Unread postAuthor: paaiyan » Fri Jul 27, 2007 1:48 pm

Alabaster wrote:How do you make bombs with it?


Discussion of solid propellants, explosive devices or incendiary projectiles fired specifically from a spud cannon is prohibited, and may result in a permanent banning of your account.For the purpose of this forum, these definitions will be used:

Solid propellant: Any substance containing all the chemical elements required to enable sustained combustion without the presence of additional oxidizers. This includes but is not limited to gunpowder, thermite, and many commercial and/or homemade pyrotechnic compounds.
For this purpose, nitroglycerine, though liquid, would qualify.
For this purpose, ordinary flour, though solid, would not qualify.
Explosive device: Any device that has the capability to release large amounts of stored energy rapidly.

Discussion of fireworks as projectiles is prohibited.

Discussion of "soda bottle bombs" or any other similar devices that may cause shrapnel as a result of uncontrolled rupture is prohibited.
Incendiary projectile: Any projectile that is capable of producing flame.
Rocket propelled projectiles, pyrotechnic smoke bombs, or any other burning projectiles would qualify as an incendiary projectile.
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Unread postAuthor: Alabaster » Fri Jul 27, 2007 1:49 pm

my bad wont happen again
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Unread postAuthor: paaiyan » Fri Jul 27, 2007 1:57 pm

You should probably read over the rules, even if you already have. PCGuy doesn't pull out the banstick often, but he has been known to do it. And it's usually because someone breaks rules. I'm not trying to be a jerk, I'm just saying you should read them.
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Unread postAuthor: Alabaster » Fri Jul 27, 2007 1:59 pm

didnt know the rules were so elaborate i think i will read them now
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Unread postAuthor: SpudBlaster15 » Fri Jul 27, 2007 2:14 pm

1 pound of dry ice and 1 pound of liquid CO2 will produce the same quantity of gas, at the same pressure. Why go through the hassle of trying to build a dry ice pressure cylinder when you can buy a 1lb CO2 tank for about $20?
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Unread postAuthor: Alabaster » Fri Jul 27, 2007 2:16 pm

? i just thought there could be a new powered cannon and that its worth tryin
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Unread postAuthor: paaiyan » Fri Jul 27, 2007 2:21 pm

Yea, and you can get the CO2 cylinder recharged for pretty cheap. Heck, you could just get a paintball CO2 tank and get it recharged at paintball stores and a few other places for like 4 bucks.
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Unread postAuthor: Alabaster » Fri Jul 27, 2007 2:22 pm

true but if this did work would some water be shot out with it?
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