Peter and Samantha Tomich on fri 14 feb 03
Arnold, I don't have any cones breaking, but I am curious as to what a
firing gauge is. Could you please let me know? I am not changing anything
every month....
4) The Kiln Sitter could be out of adjustment. Please adjust every
month or so with the Kiln Sitter firing gauge.
Samantha Tomich
Waikoloa, Hawaii
peter.sam@verizon.net
http://s_a_m.tripod.com/pottery.html
-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG]On Behalf Of Arnold
Howard
Sent: Friday, February 14, 2003 7:09 AM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Why cones break in the Kiln Sitter
The following are reasons cones break in the Kiln Sitter. This is
something I sent out recently in an email "Kiln Pointers" newsletter.
I'm forwarding this to Clayart because someone may find it useful:
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 pivots 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
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Arnold Howard on fri 14 feb 03
The following are reasons cones break in the Kiln Sitter. This is
something I sent out recently in an email "Kiln Pointers" newsletter.
I'm forwarding this to Clayart because someone may find it useful:
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 pivots 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
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