Cindy Strnad on thu 14 sep 00
Catherine,
It is the weight of the kiln sitter mechanism which causes the cone to bend
at the correct temperature. Self-standing cones will bend on their own, but
they're designed to do that. I can't see any reason for the kiln sitter cone
to bend in the secure position it has--except for the bar pushing on it, of
course.
The only time I had trouble with my kiln sitter not turning the kiln off,
some glaze had dripped from a higher pot which was, admittedly, too close to
the wall, and jammed up the kiln sitter. Fortunately, it wasn't a lot of
glaze, and the mechanism wasn't permanently gummed up
Cindy Strnad
Earthen Vessels Pottery
RR 1, Box 51
Custer, SD 57730
USA
earthenv@gwtc.net
www.earthenvesselssd.com
Ortynsky Family on thu 14 sep 00
Dear clayart potters
My kiln failed to shut off after the expected 4 hours and was still =
running 8 hours later when I turned it off. I had put the right cone 5 =
in there with its distinct pale green color so I assumed that something =
had pressed up against the kiln sitter and caused things to jam and =
therefore not turn off. When I opened the kiln this morning I was =
surprised to see that the cone itself had not sagged. So my question is =
shouldn't the cone have sagged even if the kiln sitter had been blocked =
from falling? The cone appears white, is clearly stamped >5 and is =
totally unbeant. What happened?
thanks greatly
Catherine Ortynsky
Frozen John Studio
Northen British Columbia where the weather has decided to turn from an =
unbelievable cold wet summer into a miraculously clliche'beautiful fall =
day. Let writers of erudite Artist Statements play on where they will =
in unread publications because today the blue planet parades itself in =
an incredible tableau of change from summer to winter and it is just a =
good day to go for a walk and kick leaves.
Bill Raymond on thu 14 sep 00
The frist things you need to check are the elements and the switchs. It
sounds like you have a bad switch or element. Trun on your kiln while it's
empty, all switchs on high after a few minutes maybe about ten or so check
to see if all your elements are glowing, if not you have problem in that
element or switch. The next thing you need to do IS UNPLUG YOUR
KILN!!!!!!!!! never work on it while it's plugged in. Next take off the
controle box to that element or switch check for burned spots on the switch
also burnt wires, etc. then check the element for any breaks if you don't
find anything at any of these points call the tech support at the factory
that built your kiln they will br very glad to help you. Good luck nothings
worst then haveing your kiln down, but it happens to all of us once in a
while. Josie-----Original Message-----
From: Ortynsky Family
To: CLAYART@LSV.CERAMICS.ORG
Date: Thursday, September 14, 2000 6:01 PM
Subject: over firing
Dear clayart potters
My kiln failed to shut off after the expected 4 hours and was still running
8 hours later when I turned it off. I had put the right cone 5 in there
with its distinct pale green color so I assumed that something had pressed
up against the kiln sitter and caused things to jam and therefore not turn
off. When I opened the kiln this morning I was surprised to see that the
cone itself had not sagged. So my question is shouldn't the cone have
sagged even if the kiln sitter had been blocked from falling? The cone
appears white, is clearly stamped >5 and is totally unbeant. What happened?
thanks greatly
Catherine Ortynsky
Frozen John Studio
Northen British Columbia where the weather has decided to turn from an
unbelievable cold wet summer into a miraculously clliche'beautiful fall day.
Let writers of erudite Artist Statements play on where they will in unread
publications because today the blue planet parades itself in an incredible
tableau of change from summer to winter and it is just a good day to go for
a walk and kick leaves.
____________________________________________________________________________
__
Send postings to clayart@lsv.ceramics.org
You may look at the archives for the list or change your subscription
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melpots@pclink.com.
Frederich, Tim on fri 15 sep 00
Catherine,
The cone or bar in the kiln sitter may not bend if there is no
pressure being applied to it. It might have to go significantly higher in
temperature to bend or melt into a ball of glass.
Tim Frederich, Orton Ceramic Foundation
-----Original Message-----
From: Ortynsky Family [mailto:ortynsky@OCOL.COM]
Sent: Thursday, September 14, 2000 2:57 PM
To: CLAYART@LSV.CERAMICS.ORG
Subject: over firing
Dear clayart potters
My kiln failed to shut off after the expected 4 hours and was still running
8 hours later when I turned it off. I had put the right cone 5 in there
with its distinct pale green color so I assumed that something had pressed
up against the kiln sitter and caused things to jam and therefore not turn
off. When I opened the kiln this morning I was surprised to see that the
cone itself had not sagged. So my question is shouldn't the cone have
sagged even if the kiln sitter had been blocked from falling? The cone
appears white, is clearly stamped >5 and is totally unbeant. What happened?
thanks greatly
Catherine Ortynsky
Frozen John Studio
Northen British Columbia where the weather has decided to turn from an
unbelievable cold wet summer into a miraculously clliche'beautiful fall day.
Let writers of erudite Artist Statements play on where they will in unread
publications because today the blue planet parades itself in an incredible
tableau of change from summer to winter and it is just a good day to go for
a walk and kick leaves.
____________________________________________________________________________
__
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.
Earl Brunner on fri 15 sep 00
Nowhere in this message from Catherine does she indicate
that the kiln even reach temperature.
Did it?
"Frederich, Tim" wrote:
>
> Catherine,
> The cone or bar in the kiln sitter may not bend if there is no
> pressure being applied to it. It might have to go significantly higher in
> temperature to bend or melt into a ball of glass.
>
> Tim Frederich, Orton Ceramic Foundation
>
> -----Original Message-----
> From: Ortynsky Family [mailto:ortynsky@OCOL.COM]
> Sent: Thursday, September 14, 2000 2:57 PM
> To: CLAYART@LSV.CERAMICS.ORG
> Subject: over firing
>
> Dear clayart potters
>
> My kiln failed to shut off after the expected 4 hours and was still running
> 8 hours later when I turned it off. I had put the right cone 5 in there
> with its distinct pale green color so I assumed that something had pressed
> up against the kiln sitter and caused things to jam and therefore not turn
> off. When I opened the kiln this morning I was surprised to see that the
> cone itself had not sagged. So my question is shouldn't the cone have
> sagged even if the kiln sitter had been blocked from falling? The cone
> appears white, is clearly stamped >5 and is totally unbeant. What happened?
>
> thanks greatly
> Catherine Ortynsky
> Frozen John Studio
>
> Northen British Columbia where the weather has decided to turn from an
> unbelievable cold wet summer into a miraculously clliche'beautiful fall day.
> Let writers of erudite Artist Statements play on where they will in unread
> publications because today the blue planet parades itself in an incredible
> tableau of change from summer to winter and it is just a good day to go for
> a walk and kick leaves.
>
> ____________________________________________________________________________
> __
> 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.
>
> ______________________________________________________________________________
> 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.
--
Earl Brunner
http://coyote.accessnv.com/bruec
mailto:bruec@anv.net
vince pitelka on fri 15 sep 00
> It is the weight of the kiln sitter mechanism which causes the cone to
bend
> at the correct temperature. Self-standing cones will bend on their own,
but
> they're designed to do that. I can't see any reason for the kiln sitter
cone
> to bend in the secure position it has--except for the bar pushing on it,
of
> course.
I think this is true, but the most important condition for this to occur
satisfactorily is smooth movement in the sensing rod, and a smooth,
corrosion-free surface on the cone-support prongs. Just wiggle your sensing
rod up and down periodically to make sure it is not hanging up and has not
bent over time. If your cone support prongs get corroded, the cone can
stick to them, taking much longer to sag enough to shut off the kiln. A
cone 04 can take your kiln up to high-fire temperatures just because it is
stuck to the cone support prongs. Every time your cone-support prongs start
to look corroded, replace them. They are very inexpensive, and you need to
buy replacements by the dozen. If you get caught without replacements,
remove the old ones and polish the surface, and/or coat them with kiln wash.
Best wishes -
- Vince
Vince Pitelka
Home - vpitelka@dekalb.net
615/597-5376
Work - wpitelka@tntech.edu
615/597-6801 ext. 111, fax 615/597-6803
Appalachian Center for Crafts
Tennessee Technological University
1560 Craft Center Drive, Smithville TN 37166
http://www.craftcenter.tntech.edu/
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