Ruth on fri 23 dec 05
My cones break in my
kiln sitter rather than bend.
This is driving me crazy.
HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Taylor, in Rockport TX on sat 24 dec 05
Ruth:
We will do our best (probably after the holidays), but give us particulars.
1. What is the make and model of your kiln sitter?
2. What cone is it and under what firing temps does it break?
3. Have you services your kiln sitter lately?
I love taking those things apart. I've done two and they work great.
Taylor, in Rockport TX, on his way to Texas City for Christmas with the
fam-in-laws. Have peaceful and healty holidays, holy days, or vacations y'all!
On Fri, 23 Dec 2005 22:35:39 -0500, Ruth wrote:
>My cones break in my
> kiln sitter rather than bend.
>This is driving me crazy.
>HELP!...
Clay Firer on tue 27 dec 05
Hi Ruth. I've had cones bend and break but I never really saw any difference in the firing. I always chalked it up to the age of the cone but it's just a guess.
Happy firing
Chris
Ruth wrote:
My cones break in my
kiln sitter rather than bend.
This is driving me crazy.
HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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William & Susan Schran User on tue 27 dec 05
On 12/23/05 10:35 PM, "Ruth" wrote:
> My cones break in my
> kiln sitter rather than bend.
> This is driving me crazy.
Ruth - First thing - use the Kilnsitter gauge to adjust the device according
to the instructions.
I would assume too much pressure on the cone that may be caused by the
Kilnsitter being out of adjustment.
-- William "Bill" Schran
Fredericksburg, Virginia
wschran@cox.net
wschran@nvcc.edu
Arnold Howard on wed 28 dec 05
From: "Ruth"
> My cones break in my
> kiln sitter rather than bend.
> This is driving me crazy.
1) The cones might have been roughly handled, resulting in fine hairline
cracks. These can break during firing.
2) If the Kiln Sitter sensing rod is binding at the pivot point, it can
exert too much pressure against the cone. Binding of the rod can be due to
glaze buildup inside the porcelain tube. Make sure the sensing rod can pivot
freely.
3) A very fast firing can break the Kiln Sitter cone.
4) The Kiln Sitter could be out of adjustment. Please adjust every month or
so with the Kiln Sitter firing gauge.
The cone has a number stamped onto one of the sides. You should place the
cone in the Kiln Sitter with the number side down. That side is the
smoothest of the three sides. Placing that side down lessens the chance of
breakage.
Sincerely,
Arnold Howard
Paragon Industries, L.P.
www.paragonweb.com
Rose on thu 29 dec 05
Over time, small amounts of the cone itself will begin to stick to the flat
prongs in which the cone is mounted in the cone sitter. This will cause the
cone to stick instead of slide as the melt begins. This will cause cone
breakage. You need to remove the flat posts in the cone sitter, they will
slide right out, and file or grind off the offending cone material stuck to
them. They are replaceable and available from most distributors, call your
local clay supplier or kiln manufacturer.
Rose Downs
Terra Madre
www.terramadre.com
Princeton, TX
469-450-5480
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