RE: OT: where to hire smoke generator

["Graham Howe" <graham@xxxxxxx>]

Thanks for this Paul. The DIY conversion of fog machine to low level fog
seems like a decent idea. Presumably I could then use your machine and the
cost is just that of the dry ice (plus polystyrene box). At least this way
I
would have no safety concerns and I could control the amount of smoke
easily.

Graham

> -----Original Message-----
> From: Paul Gordon [mailto:paul_gordon@xxxxxxx]
> Sent: 15 October 2001 12:35
> To: ukha_d@xxxxxxx
> Subject: Re: [ukha_d] OT: where to hire smoke generator
>
>
> Graham, some stuff I've found which may be useful, including
> some links to
> suppliers near the end...
>
> Paul G.
>
>
> It is important to know that the carbon dioxide will displace
> oxygen and if
> the concentration of oxygen falls below 19.5% may cause
> asphyxiation. For
> this reason Dry Ice could become hazardous if, for example,
> someone was
> lying down in the area where it is used. Users should also be
> aware of the
> dangers of gases and moisture around the machine.
>
> Dry Ice must be stored in a properly designed container. As
> it is extremely
> cold it can cause severe cold burns. Handle dry ice with
> chrome leather
> insulated gloves available from the suppliers.
>
> It should be noted that Dry Ice is, like anything else not
> dangerous if used
> properly. It is cold, -78C ish but wearing welding gauntlets
> solves this
> problem. One big factor is that in order for the effect to be
> good the water
> in the machine needs to be very hot. Too hot however and the pressure
> produced will propel pellets of dry ice down the pipe and potentially
> towards people!
>
> The stuff costs around £8-10 per 10Kg bag from BOC or Ellis
> and Everard and
> if you ask nicely they will lend a storage box.
>
> Left in the bags at room temperature the stuff will last at
> best 36hrs in a
> box nearly a week.
>
> A 10kg bag will give about 2mins useful effect.
>
> Dry ice is a great effect in theatre and film, however it is
> not very easy
> to work with.
> If you have access to a smoke machine and dry ice, and you
> require a low
> lying fog on demand, try this:
> Cut a 1 hole in each end of a polystyrene box, one big enough
> for your smoke
> machines jet nozzle to fit into. (It may need a small amount
> of ducting).
> Place a few kilograms of dry ice in the box, and place the lid on it.
> When you pump the smoke machine into the polystyrene box, the dry ice
> instantly cools the smoke, and it flows out the other hole
> onto the floor.
> Although this still requires the dry ice for the effect, you
> have much more
> control over the amount of fog and it is virtually availible
> on demand.
> The smoke machine is best set on a low volume setting if
> possible, and the
> smoke does eventually rise, but it is a good effect.
>
> http://www.partyworks.co.uk/effects/p_dryice.htm
> http://www.blackjackuk.co.uk/lowfog.htm
> http://www.ice-cooling.co.uk/welcome.htm
> http://www.maximumfx.co.uk/dry_ice.htm
> http://www.kave.co.uk/KAVEPages/effects.html
> http://www.special-effects.co.uk/2000/italiano/hiresales/smokefog.htm
>
>
>
> _________________________________________________________________
> Get your FREE download of MSN Explorer at
http://explorer.msn.com/intl.asp



For more information: http://www.automatedhome.co.uk
Post message: ukha_d@xxxxxxx
Subscribe:  ukha_d-subscribe@xxxxxxx
Unsubscribe:  ukha_d-unsubscribe@xxxxxxx
List owner:  ukha_d-owner@xxxxxxx

Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/