The ones that are planned happen in rehearsals because ‘things going wrong’ is the ground state of rehearsal. It’s a rite of passage that brings the newcomer into the club of people who’ve gotten it wrong and lived to tell the tale. They’re bonding experiences more than cruel jokes because the follow-up is for all the elders to stand around trading “when that happened to me” stories. The ‘pranks’ are chosen to give newcomers a taste of things going wrong in a context where nothing really bad happens. Hearing about it is one thing, having a “then this happened” story sticks better and lasts longer. In many cases, the best way to learn how things can go wrong is by seeing them go wrong. On one memorable occasion, the cutain opened and the ground fog flowed right off the stage and into the orchestra pit, which remained a seething cauldron of music for the rest of the night.Ĭhilled machine fog is works well for thin ground layers, but for the really thick stuff, CO2 is best. The more experienced stagehands usually arrange for the new guy to do that during a rehearsal, but I have seen it happen in performance. That beautiful 2″ thick layer turns into a London pea-souper within about ten minutes. As the air warms up, it rises and mixes into the air above it. The average fog effect uses maybe a teaspoon of fluid to fog a whole theatre, so there isn’t any noticeable mess.Ĭhilled machine fog only stays near the floor as long as the air around it is cold. The particles don’t evaporate, they just hang around until they come into contact with a suface and adhere to that. Machine fog is actually a particulate of nontoxic, high molecular weight alcohols. I’ve seen guys build a layer 2″ deep so dense that you couldn’t see the floor. Using chilled fogger mist to make a dense, floor hugging cloud was a traditional “prank the newbie” trick/object-lesson where I came from. I used to be a stagehand, and have done lots of fog effects. Posted in Holiday Hacks Tagged dry ice, fail, fog, fog machine, ice Post navigation It’s just using the heated steam to pump out carbon-dioxide vapor boiling off of the dry ice. As he attests in the video after the break, the dry-ice fog hack isn’t pumping out fog. When it hits the ice bath the mist condenses into liquid form and that’s the end of the fog. The problem here is that the fog machine puts out a hot mist. On the other side of the bucket there’s a plastic tube that goes to a sheet of plastic meant to distribute the cooled fog. Inside the bucket seen above there is a 15′ coil of copper tubing through which the fog machine’s output is passed. He though he’d just use his own bucket full of regular ice and salt water. He wanted that ankle-deep graveyard effect and had seen several examples online that use a fog-machine with a bucked of dry ice. The problem is that this fills a room with a thin foggy-haze that doesn’t take shape outdoors. The project started off with a theater-style fog machine. And anyone that has doubts about skills need not look very far to find out that he does know what he’s doing. Don’t feel bad, this happens to everyone from time to time. But he admits it and reports that he still had a lot of fun. His fog machine hack turned out to be an utter failure. Poor spent all of Saturday and Sunday trying to make some ground-hugging fog for his Halloween decor.
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