Joy L. Holdread on tue 11 jun 02
In a message dated 6/10/02 10:35:13 AM US Mountain Standard Time,
snail@MINDSPRING.COM writes:
>
> At 04:13 PM 6/9/02 +0100, you wrote:
> >...is it possible to fire slab pieces...on two shelves...Or should I be
> firing them on one shelf...I had a piece that cracked...
>
When you need to bridge two shelves why not make a thin flat slab to
fire under the piece anyway. Almost everything fires better on a "cookie" (
slab of clay the same stage as the piece to be fired, green or bisque).
I'm making large tripod footed hand built platters and bowls and
planning to fire them on slab "cookies". I'm wondering if a thin slab will
shrink more than a thick one. Anyone with practical experience out there?
Joy in Tucson who might be watching the eclipse from Gates Pass. It's my
friend's idea to cook out there, my idea is at my friend's pool or in my
friends pool.
Snail Scott on wed 12 jun 02
At 11:12 PM 6/11/02 EDT, you wrote:
>...I'm wondering if a thin slab will
>shrink more than a thick one...
Nope. Shrinkage is constant, not a function
of thickness or size. It would only make a
difference if the the thickness were so
extreme as to produce a difference in the
amount of heat-work done to the slab - and
that would have to be a mondo-thick slab
to make a perceptibly different result!
-Snail
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