[net.misc] Need help with fog machine

carol@amd.UUCP (Carol Tafolla) (10/05/85)

I would like to make one of those fog machines for 
halloween. I saw one used in a play once and it
didn't look like there was much to it. Does anyone
out there know how to build one? Your help will be
greatly appreciated. Please send all replies to me.
I just love to get mail. Thanks in advance.

-- 
 Carol Tafolla (408) 982-6872
 UUCPnet: {ucbvax,decwrl,ihnp4,allegra,intelca}!amd!carol
 ARPAnet: amd!carol@decwrl.ARPA

ron@brl-sem.ARPA (Ron Natalie <ron>) (10/09/85)

> I would like to make one of those fog machines for 
> halloween. I saw one used in a play once and it
> didn't look like there was much to it. Does anyone
> out there know how to build one? Your help will be
> greatly appreciated. Please send all replies to me.
> I just love to get mail. Thanks in advance.
> 
The best fog machines are Dry Ice.  Eschew the portable ones that
generate smoke from an oily fuel as they are a real pain.

To make a dry ice fog machine.  Obtain a metal chemical drum.  Install
a water heating element about one quarter of the way up (actually, you
can get away without doing this, but you need to change the water because
it gets cooled off too easily and then just freezes around your dry ice).
Then cut two holes in a/the lid of the drum (using a wooden disk for a lid
worked for us, it was a lot easier to make the holes, and to get on and off
the drum).  To one hole, attach a blower, to the other some dryer exhaust
hose.  The only remaining piece is a basket to hold the dry ice.  Ours was
just attached to the lid, which we dropped onto the drum when we were ready
to start, others have a method for lowering the basket into the water once
the lid is on.

Keep the water warming continuously.  Load the basket with dry ice broken
into chunks no larger than golf ball sized pieces.  Plug the blower in and
drop the basket in and put the lid on.

Pretty much, I get by at halloween by just dropping dry ice into various
containers of liquid in the house (the shower was a good one).

-Ron