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Fake smoke effect - Page 2

post #11 of 30
Using fans, you can make sure that your dry ice/CO2 smoke only goes where you want it to. I think you'd be well off trying to do something like that instead of letting it lay languid in the case.
post #12 of 30
The visual component of actual smoke is airborne soot. It's eventually going to settle on something.
    
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post #13 of 30
Thread Starter 
Quote:
Originally Posted by Kavster12 View Post

If I am correct there are some kinds of incense which contain purely smoke with barely any harmful additives and do not leave behind residue. Also with fans in place the smoke would merely escape leaving literally nothing behind.
If I do find any more methods I will keep you posted biggrin.gif

Very cool idea. Potential smoke themed build perhaps? thinking.gif

Thanks and... sshhh it's a secret biggrin.gif
Quote:
Originally Posted by Babbalabba View Post

Using fans, you can make sure that your dry ice/CO2 smoke only goes where you want it to. I think you'd be well off trying to do something like that instead of letting it lay languid in the case.

Fans it is then!
Quote:
Originally Posted by Baskt_Case View Post

The visual component of actual smoke is airborne soot. It's eventually going to settle on something.

Right, possibly the device should be turned on only when needed or for photo shooting.
post #14 of 30
How long do you need it to last? There is no good long term (more than 30 minutes) solution really...
    
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post #15 of 30
Quote:
Originally Posted by Kavster12 View Post

If I am correct there are some kinds of incense which contain purely smoke with barely any harmful additives and do not leave behind residue. Also with fans in place the smoke would merely escape leaving literally nothing behind.

What is "purely smoke" exactly? wth.gif Smoke is defined as combusted solid or liquid material fine enough to temporarily become suspended in the air as a mist. As soon as it cools down enough or touches any surface it becomes a residue. Whatever it is will stick to fan blades and inside of the case. There does not exist any kind of magic incense that leaves no trace.

OP: you want neither smoke nor vapor, but consider instead e.g. chilled nitrogen/oxygen mix which looks like fog and will warm up and turn into air, which is clean and safe as long as your environment isn't too humid.
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post #16 of 30
What about a double-pane window? Two thin sheets of acrylic spaced about 2 inches apart. The smoke or vapor can be passed through this thin chamber and safely vented outside the case through a hidden vent. The vapor will appear to be moving inside the case but it will really be trapped inside the chamber.

Here is a cutaway view. If you did this, I think I would use vapor exclusively. I'm thinking smoke would leave a film on the inside pretty quickly in the confined space, but vapor that condenses on the acrylic would could dry up. Not sure how you would handle the resulting water spots.


Edited by Baskt_Case - 4/16/13 at 9:22am
    
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post #17 of 30
Quote:
Originally Posted by WiSK View Post

What is "purely smoke" exactly? wth.gif Smoke is defined as combusted solid or liquid material fine enough to temporarily become suspended in the air as a mist. As soon as it cools down enough or touches any surface it becomes a residue. Whatever it is will stick to fan blades and inside of the case. There does not exist any kind of magic incense that leaves no trace.

OP: you want neither smoke nor vapor, but consider instead e.g. chilled nitrogen/oxygen mix which looks like fog and will warm up and turn into air, which is clean and safe as long as your environment isn't too humid.

I cant remember where I saw this but I saw an article for some incense which was designed for people who live with breathing problems and such and basically expelled such a smoke that contained barely any materials or residue. Or if it was that the residue was so weak that it just broke down in oxygen/air. Also not sure whether this was an actual made product or just a concept.
Meh we shall see.thumb.gif
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post #18 of 30
Thread Starter 
Quote:
Originally Posted by Minnetonka16 View Post

How long do you need it to last? There is no good long term (more than 30 minutes) solution really...
I actually found a small device to put into water that will create a fog effect, it's tested to last at least 2000 hours. You can check it here (Ita language but you can see the pics)
Quote:
Originally Posted by WiSK View Post

OP: you want neither smoke nor vapor, but consider instead e.g. chilled nitrogen/oxygen mix which looks like fog and will warm up and turn into air, which is clean and safe as long as your environment isn't too humid.
Good thing but that could be harmful to handle, not to mention that it would require a metal casing to hold inside right? Too much of an hassle smile.gif
Quote:
Originally Posted by Baskt_Case View Post

Hey, I like this! Might be an idea. I will see if I can use it somehow...
Thanks for all the inputs so far!
post #19 of 30
Quote:
Originally Posted by Baskt_Case View Post

What about a double-pane window? Two thin sheets of acrylic spaced about 2 inches apart. The smoke or vapor can be passed through this thin chamber and safely vented outside the case through a hidden vent. The vapor will appear to be moving inside the case but it will really be trapped inside the chamber.

Here is a cutaway view. If you did this, I think I would use vapor exclusively. I'm thinking smoke would leave a film on the inside pretty quickly in the confined space, but vapor that condenses on the acrylic would could dry up. Not sure how you would handle the resulting water spots.


Thats a cool idea. Some issues might be how to get the vapor move inside the casing.
You would not have to fill it but create the vapor into the casing from one end and then have a slow flow of air through it. You could create a nice effect where ever you want the vapor to exit.

- Jussi -
post #20 of 30
Paul Capello's Project Mars City (DOOM 3) build had a model train smoke generator in it, but the stuff was really piped to the outside through a tube and a small vent. If you were to have the smoke INSIDE the case, the fans would just push it out and you wouldn't see much of anything. If you want it inside, you'll have to do some sort of enclosure for it so it's contained to the area you want to view it in, and has some sort of slow release and drain for any condensation.

Two types of smoke:
Floating up, produced by model train smoke generator. It's a small heating element that vaporizes an oil. Fairly limited amount of smoke. Condensate is NASTY.
Hangs on the ground, produced by ultransonic transducer vibrating water until it turns into fog. You've probably seen these in the little zen fountain things at places like Bed Bath and Beyond.
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