Lorene on sat 5 mar 05
>
> The student had centered the clay and was opening when the outside
> started to tear. The inside was nice and smooth.
Thanks for the help - I'm still learning as I go :-)
Lorene
Lorene on sat 5 mar 05
Hi all,
I am a K-12 art teacher and have been teaching ceramics only about a
year or so. I tend to lurk and learn around here and had a perplexing
thing happen in a community ed class a few days ago that I'm hoping
someone can help with.
The student had centered the clay and was opening when the outside
started to tear. The inside was nice and smooth. I would have
thought it was just a fluke but then another student did exactly the
same thing but with a different clay. One was a mid-fire white clay
the other was a low-fire red clay. Two different people. Same wheel
=E2=80=93 a Brent kick wheel (that can't make a difference can it?!)
I have no clue =E2=80=93 got ideas? =20
--=20
Lorene -
in the Minnesota northwoods on the=20
beautiful Rainy River border with Canada
pdp1@EARTHLINK.NET on sat 5 mar 05
.Hi Lorene,
...poor, or insufficient wedgeing...
Phil
el ve
----- Original Message -----
From: "Lorene" PM
Subject: Weird tear when centering/opening
The student had centered the clay and was opening when the
outside
started to tear.
Lorene -
Lee Love on sun 6 mar 05
Lorene wrote:
>the other was a low-fire red clay. Two different people. Same wheel
>– a Brent kick wheel (that can't make a difference can it?!)
>
>I have no clue – got ideas?
>
Throwing with too much water?
--
Lee in Mashiko, Japan http://mashiko.org
http://potters.blogspot.com/ WEB LOG
http://claycraft.blogspot.com/ Photos!
Dan Saultman on sun 6 mar 05
I think this is happening because your students are opening too fast.
You have to give the clay time to expand as you open your centered
clay. The softer the clay and the more plastic it is the faster you can
do this step. If you see a tear starting to occur stop, take your
sponge and center the partially opened lump pressing firmly to close
any tear that has started.
Dan
Dan Saultman
Detroit
Art Pottery, Graphic and Website Design
http://www.saultman.com
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