Cynthia Spencer on wed 1 jul 98
This thread of discussion couldn't have come at a better time. After
three years firing my updraft, downdraft with pretty good results, I've
started having unevenness in the weirdest places, and not consistently.
The main difference is that I've begun to fire a lot more flat
items--mostly plates. I'm using 2 in. stilts, to leave good clearance,
but am wondering if people have magic stacking techniques for a lot of
flat stuff.
In my 16 cu ft kiln, I stack with two rows of 12 x 24's, up four feet.
I'm leaving the bottom pretty open, with taller items, and then room at
the top, though I push it depending on needs.
Thanks John Baymore for your (long) discussion about reduction. I'm one
of those who has always used the damper more than the primary air sources
for reduction. Will try it your way next firing, to see if that helps
even it out, too.
Marcia Selsor on thu 2 jul 98
Has anyonehad experience with plate setters in such a kiln firing?
In the years of loading kilns at MSUB, dense shelving in a kiln can cause
uneven firings. Maybe plate setters might assist you. I never used them but
when students carnk out plates, I have often wished for some.
Marcia in Montana
Cynthia Spencer wrote:
>
> ----------------------------Original message----------------------------
> This thread of discussion couldn't have come at a better time. After
> three years firing my updraft, downdraft with pretty good results, I've
> started having unevenness in the weirdest places, and not consistently.
>
> The main difference is that I've begun to fire a lot more flat
> items--mostly plates. I'm using 2 in. stilts, to leave good clearance,
> but am wondering if people have magic stacking techniques for a lot of
> flat stuff.
>
> In my 16 cu ft kiln, I stack with two rows of 12 x 24's, up four feet.
> I'm leaving the bottom pretty open, with taller items, and then room at
> the top, though I push it depending on needs.
>
> Thanks John Baymore for your (long) discussion about reduction. I'm one
> of those who has always used the damper more than the primary air sources
> for reduction. Will try it your way next firing, to see if that helps
> even it out, too.
Earl Brunner on thu 2 jul 98
My down draft kiln has a stacking area, 20x20x36. I have shelves that are
10x20 and I ordered a couple of shelves that are 20x20 for large flat pieces.
I was loading the kiln with the shelves pretty even front to back, and putting
the platters in the middle of the kiln and getting terrible results, really
uneven firings, uneven reduction. We determined that the shelf arrangement
was restricting the circulation in the kiln, I now load the shelves side by
side instead of one in front and one in back(better on my back), I stagger the
height of the shelves so that the air can circulate down through the stack and
I don't use the 20x20 shelves unless they are at the very top. I bought
12x12 and a 16x16 shelves for platters so that they don't restrict air flow as
much and now make my platters with smaller bases, more like very shallow
bowls. This has really helped to improve the flow and even out both the
temperature and the reduction. Earl Brunner in 107 degree Las Vegas. where we
don't get impatient waiting for our pots to dry!
Ray Carlton on thu 2 jul 98
I would also like to thank John Baymore for his discussion on reduction and
if any one has the article could they send it to me or repost it to the
group..
it was a very interesting and informative article and I am unable to find it
At 08:43 01/07/98 EDT, you wrote:
>----------------------------Original message----------------------------
>This thread of discussion couldn't have come at a better time. After
>three years firing my updraft, downdraft with pretty good results, I've
>started having unevenness in the weirdest places, and not consistently.
>
>The main difference is that I've begun to fire a lot more flat
>items--mostly plates. I'm using 2 in. stilts, to leave good clearance,
>but am wondering if people have magic stacking techniques for a lot of
>flat stuff.
>
>In my 16 cu ft kiln, I stack with two rows of 12 x 24's, up four feet.
>I'm leaving the bottom pretty open, with taller items, and then room at
>the top, though I push it depending on needs.
>
>Thanks John Baymore for your (long) discussion about reduction. I'm one
>of those who has always used the damper more than the primary air sources
>for reduction. Will try it your way next firing, to see if that helps
>even it out, too.
>
>
cheers :) Ray Carlton
McMahons Creek Victoria Australia
Grimmer on fri 3 jul 98
Cynthia,
I just started doing this, and it makes life a lot easier: On
each 12x24 shelf, I put a complete dinner set. Dinner plate,
salad plate, soup bowl, and coffee cup. Fourteen settings in a
34 cubic foot kiln, and there's no tight spots or loose spots.
For biggie platters, here's a trick from Victor Babu: Put in
two shelves, front and back. Posts go on the inside corners of
each shelf and in the middle of each outside long edge.
Centered on those shelves between the posts goes a 19 or 21
inch full round shelf up on wads of fire clay and grog dusted
with flint. Also dust the round shelf with flint before you
put it in. Your platter goes on that. Nice and smooth and
level. continue loading as normal.
hope that's clear. hmm
steve grimmer
marion illinois
Cynthia Spencer wrote:
>
> ----------------------------Original message----------------------------
> This thread of discussion couldn't have come at a better time. After
> three years firing my updraft, downdraft with pretty good results, I've
> started having unevenness in the weirdest places, and not consistently.
>
> The main difference is that I've begun to fire a lot more flat
> items--mostly plates. I'm using 2 in. stilts, to leave good clearance,
> but am wondering if people have magic stacking techniques for a lot of
> flat stuff.
>
> In my 16 cu ft kiln, I stack with two rows of 12 x 24's, up four feet.
> I'm leaving the bottom pretty open, with taller items, and then room at
> the top, though I push it depending on needs.
>
> Thanks John Baymore for your (long) discussion about reduction. I'm one
> of those who has always used the damper more than the primary air sources
> for reduction. Will try it your way next firing, to see if that helps
> even it out, too.
Penny Hosler on fri 3 jul 98
Ray,
I'm forwarding both of his discussions directly to you, as they both involve
reduction.
Penny in WA
-----Original Message-----
From: Ray Carlton
To: Multiple recipients of list CLAYART
Date: Thursday, July 02, 1998 6:43 AM
Subject: Re: Reduct. firing-stacking the pots
----------------------------Original message----------------------------
I would also like to thank John Baymore for his discussion on reduction and
if any one has the article could they send it to me or repost it to the
group..
it was a very interesting and informative article and I am unable to find it
At 08:43 01/07/98 EDT, you wrote:
>----------------------------Original message----------------------------
>This thread of discussion couldn't have come at a better time. After
>three years firing my updraft, downdraft with pretty good results, I've
>started having unevenness in the weirdest places, and not consistently.
>
>The main difference is that I've begun to fire a lot more flat
>items--mostly plates. I'm using 2 in. stilts, to leave good clearance,
>but am wondering if people have magic stacking techniques for a lot of
>flat stuff.
>
>In my 16 cu ft kiln, I stack with two rows of 12 x 24's, up four feet.
>I'm leaving the bottom pretty open, with taller items, and then room at
>the top, though I push it depending on needs.
>
>Thanks John Baymore for your (long) discussion about reduction. I'm one
>of those who has always used the damper more than the primary air sources
>for reduction. Will try it your way next firing, to see if that helps
>even it out, too.
>
>
cheers :) Ray Carlton
McMahons Creek Victoria Australia
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