Post by nomuse on Jun 7, 2007 16:35:38 GMT -4
I am hoping someone in this forum has a little more practical experience in this one than I do.
For a very specific effect in our upcoming production of "Das Barbecue" I am looking at doing a co2 jet. Location is a giant bull's head located on the top of the proscenium arch, idea is a big "snort" of white smoke.
We've thought of foggers (we have two Rosco machines) model railroad "puffers," canned smoke, dry ice fogger....so far, though, everything I've thought of either requires an operator to be up on the grid for the effect (which I'd like to avoid), or uses up a piece of gear we are going to need for another effect in the show, or doesn't look quite right.
(Actually, we don't mind the idea of a fogger continuing to dribble throughout the evening: as far as I understand it this doesn't have to be cued that tightly anyhow. Also, a talcum blast would look fine, even if the crew would hate using it).
On the other hand, I happen to have a complete regulator and solenoid valve set from the gas conversion kit we bought for our wire welder (and never used). And a system that allowed us to release a metered amount of co2 by remote control might prove very useful for other effects down the road. And...the sheer sexiness of it, regardless of whether the script actually calls for it, will please our audience.
I realize full well, however, that I don't understand enough about this. I have been near similar uses of co2 for bursts of smoke -- usually re-purposed fire extinguishers -- and I am sure there are technical and safety aspects well beyond those I've thought of already (aka dangers of pressurized gases, danger of frostbite, dangers of breathing air displacement).
If anyone on this board has practical experience with a similar use of co2 please let me know quickly.
For a very specific effect in our upcoming production of "Das Barbecue" I am looking at doing a co2 jet. Location is a giant bull's head located on the top of the proscenium arch, idea is a big "snort" of white smoke.
We've thought of foggers (we have two Rosco machines) model railroad "puffers," canned smoke, dry ice fogger....so far, though, everything I've thought of either requires an operator to be up on the grid for the effect (which I'd like to avoid), or uses up a piece of gear we are going to need for another effect in the show, or doesn't look quite right.
(Actually, we don't mind the idea of a fogger continuing to dribble throughout the evening: as far as I understand it this doesn't have to be cued that tightly anyhow. Also, a talcum blast would look fine, even if the crew would hate using it).
On the other hand, I happen to have a complete regulator and solenoid valve set from the gas conversion kit we bought for our wire welder (and never used). And a system that allowed us to release a metered amount of co2 by remote control might prove very useful for other effects down the road. And...the sheer sexiness of it, regardless of whether the script actually calls for it, will please our audience.
I realize full well, however, that I don't understand enough about this. I have been near similar uses of co2 for bursts of smoke -- usually re-purposed fire extinguishers -- and I am sure there are technical and safety aspects well beyond those I've thought of already (aka dangers of pressurized gases, danger of frostbite, dangers of breathing air displacement).
If anyone on this board has practical experience with a similar use of co2 please let me know quickly.
