Vince Pitelka on fri 8 jul 05
I have never seen a kiln bottom actually collapse. As someone said, when
the kiln is fired, the cracks tighten up some. If the cracks look bad, do
as Mel mentioned, and put a piece of expanded metal under the kiln on top of
the stand or support bricks.
The reason for the cracks is usually improper placement of posts. It is
important that the kiln posts be placed so that the weight of the set is
transferred straight down to the kiln stand. That's usually not hard to do,
but many people completely overlook it., placing the posts elsewhere on the
kiln floor, and those cracks are the result.
- Vince
Vince Pitelka
Appalachian Center for Craft, Tennessee Technological University
Smithville TN 37166, 615/597-6801 x111
vpitelka@dtccom.net, wpitelka@tntech.edu
http://iweb.tntech.edu/wpitelka/
http://www.tntech.edu/craftcenter/
Jim Willett on fri 8 jul 05
Here's what we do...
Something we have always done is to use kiln shelves on the bottom of the
kiln. One, two, or three shelves depending on the kiln are dedicated to the
bottom, right on the kiln floor. Posts on top of that. No worries.
Jim Willett, Cindy Clarke
Out of the Fire Studio
Edmonton
http://www.outofthefirestudio.com
http://potblog.outofthefirestudio.com
-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG] On Behalf Of Vince Pitelka
Sent: Friday, July 08, 2005 5:11 PM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Re: kiln bottom falling out, and avoiding those cracks.
I have never seen a kiln bottom actually collapse. As someone said, when
the kiln is fired, the cracks tighten up some. If the cracks look bad, do
as Mel mentioned, and put a piece of expanded metal under the kiln on top of
the stand or support bricks.
The reason for the cracks is usually improper placement of posts. It is
important that the kiln posts be placed so that the weight of the set is
transferred straight down to the kiln stand. That's usually not hard to do,
but many people completely overlook it., placing the posts elsewhere on the
kiln floor, and those cracks are the result.
- Vince
Vince Pitelka
Appalachian Center for Craft, Tennessee Technological University Smithville
TN 37166, 615/597-6801 x111 vpitelka@dtccom.net, wpitelka@tntech.edu
http://iweb.tntech.edu/wpitelka/ http://www.tntech.edu/craftcenter/
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