Maid O'Mud on thu 14 nov 02
I get red every time I pit fire. I don't use a pit, however; I use a =
perforated steel drum. Our soil here is pure clay (makes a nice green =
glaze @ ^10) and digging it up involves heavy equipment.
I wrap my pieces in many many layers of highly coloured paper (they have =
clay in them, and seem to act as insulation). We start with large logs =
at the bottom, layer the pots together with kindling and keep throwing =
old pizza boxes in. We use 2 kiln shelves as a lid, leaving only space =
to stick in cardboard/kildling/small wood. When the fire is so hot that =
putting in fresh wood is difficult, we throw in about a 1/2 cup of =
copper carb, and about the same amount of table salt. Add a few more =
sticks, close the 2 shelves together and ignore til the next day. =20
If you really want to insure copper on all pots, layer copper carb and =
salt in amongst the paper layers. =20
HTH
Sam - Maid O'Mud Pottery
Melbourne, Ontario CANADA
"First, the clay told me what to do.
Then, I told the clay what to do.
Now, we co-operate."
sam 1994
http://www.ody.ca/~scuttell/
----- Original Message -----=20
From: Elizabeth Herod=20
To: CLAYART@LSV.CERAMICS.ORG=20
Sent: Wednesday, November 13, 2002 11:24 PM
Subject: Gas vs electric
Hi everyone--
I=B9d like to hear what people have to say on the advantages of gas vs.
electric kilns.
My impression was that gas is more versatile, but, at the same time, =
more
variable and harder to control.
Also, I=B9d like to know if anyone has tried a combination of copper =
sulfate
and borax in pit firing and what results were achieved. Can you really =
get
red? =20
I once got a red, but that was taking a small porcelain pot that had =
been
through one pit firing, putting it in a used coffee filter with a =
stretched
out copper scruffy thing, adding baking soda, baking powder and wetting =
the
soda and powder with liquid violet fertilizer. (ah, the pot blew up in =
the
fireplace, but the shards are red)
Beth
(the mad chemist)
_________________________________________________________________________=
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Dawn Christensen on fri 15 nov 02
HI
My husband just salvaged two steel drums. Could you elaborate on the
ventilation you use in yours? I have done garbage cans that I have drilled
holes in and then drilled more depending on how long it took. (sawdust,
newspaper, small kindling) Any info on size (of drill hole) and spacing
could save me some time. Also when you say copper color are these simple
copper color or vapor printed, raku look. Any chances of pictures? I would
love to see your work. Thanks for sharing, Dawn
lela martens on sat 16 nov 02
>From: Dawn Christensen
>Reply-To: Ceramic Arts Discussion List
>To: CLAYART@LSV.CERAMICS.ORG
>Subject: Re: WAS Gas vs electric now pitfire
>Date: Fri, 15 Nov 2002 16:38:43 EST
>
>HI
> My husband just salvaged two steel drums. Could you elaborate on
>the
>ventilation you use in yours? I have done garbage cans that I have drilled
>holes in and then drilled more depending on how long it took. (sawdust,
>newspaper, small kindling) Any info on size (of drill hole) and spacing
>could save me some time. Also when you say copper color are these simple
>copper color or vapor printed, raku look. Any chances of pictures? I
>would
>love to see your work. Thanks for sharing, Dawn
>
>______________________________________________________________________________
>Send postings to clayart@lsv.ceramics.org
>
>You may look at the archives for the list or change your subscription
>settings from http://www.ceramics.org/clayart/
>
>Moderator of the list is Mel Jacobson who may be reached at
>melpots@pclink.com.
Hi Ya,
From my experince, just play it by ear. I have done many sawdust firings
and the thing is to have a pot that feels good in the hands. hands.
Burnishing, but the wind blows crazy around here and I never realy know what
to expect. I use a garbage drum and have about 9 holes smacked in with a
hammer. Works great. Am limited to soft wood sawdust too. I think the secret
is to burnish enough. Don`t fuss too much, just let the firing do it`s job.
Good luck..from Lela who loves sawdust firing cause I can do it all at home.
and the effects are beautiful.
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