Lois Ruben Aronow on wed 28 may 03
>So what am I doing wrong here?
Hydrobats are terrific. =20
What you need to do when use any plaster bats - hydrobats or otherwise
- is wet the head of the bat before putting the clay down. Otherwise
the clay will not stick. I wipe it down with my wet sponge. =20
After you put the clay on the bat - I sort of thump it down - you need
to throw it down onto the wheelhead/bat. No pressure is necessary;
just a little water before centering. Throw down before you pull up
or center. =20
I guarantee this works like a charm.
************
www.loisaronow.com
=46ine Craft Porcelain and Pottery
***************************************
Lois Ruben Aronow
Modern Porcelain and Tableware
http://www.loisaronow.com=20
Gail Dapogny on wed 28 may 03
Hi Beth,
I throw functional pots and frequently use hydrobats. While centering,
before I cone it up, I press down and in with both hands on the lump of
clay. Then I press both hands inward but not really upward. The clay,
pushed from both sides inward, has to go up. I don't "pull it up really
hard". It rises by itself as a result of my inward pushing. After it has
risen into a cone, I press down on the top to compress it into a more or
less uniform hunk of clay on the wheel. Then I shape it (upward or
outward), according to what I plan to throw (tall or wide).
Hope this helps.
Gail in Ann Arbor
>Well there is no easy way to say this. I bought some hydrobats on the
>advice of a friend, another novice, a few years more experienced.
>
>Usually I throw off the wheel head, and sometimes use a plastibat. I like
>to use a bat so that I can let it set up a bit, then finish it off.
>
>OK, to the point. I have tried 4 times to use the hydrobat. Nothing has
>survived the hydrobat. The first time the clay came off the bat while I was
>centering. The second and third, and 4th times I had already opened the
>pot, and completed the first pull. On the subsequent pulls, the clay comes
>off of the bat, all 3 lbs of it.
>
>The 4th time I really pressed the clay into the bat thinking that this would
>help. I still pulled it off of the bat....
>
>In the past, I have had too light a touch, and it would take me forever to
>pull. My teachers kept after me to exert a little more pressure. Now I
>have been over the edge.... One teacher said, "push it in and then pull it
>up really hard" did that a couple of times and had the whole hunk of clay
>in my hands. (This was when I was trying to make the bottom narrow.)
Gail Dapogny
Ann Arbor, Michigan
gdapogny@umich.edu
http://www.silverhawk.com/ex99/dapogny (single historical photo - no longer
registered with Silverhawk)
Fredrick Paget on wed 28 may 03
Are the bats bone dry? Jepson in his video always wets the plaster
bat before throwing the clay down on it and pushes it down. Then it
sticks,
I have found that this works and I use his plaster bat system - an
adaptation of the Randall system.
Fred
>
>OK, to the point. I have tried 4 times to use the hydrobat. Nothing has
>survived the hydrobat. The first time the clay came off the bat while I was
>centering. The second and third, and 4th times I had already opened the
>pot, and completed the first pull. On the subsequent pulls, the clay comes
>off of the bat, all 3 lbs of it.
>
>The 4th time I really pressed the clay into the bat thinking that this would
>help. I still pulled it off of the bat.
>
>So what am I doing wrong here?
>..................
>Beth
>
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From Fred Paget, Marin County, California, USA
Snail Scott on wed 28 may 03
At 08:37 PM 5/28/03 -0400, you wrote:
>...I bought some hydrobats...
>Usually I throw off the wheel head, and sometimes use a plastibat...
>Nothing has
>survived the hydrobat...the clay comes
>off of the bat...
Just a guess, but if you are accustomed to throwing on
impervious surfaces like plastic and metal, the absorbency
of the hydrocal may be 'throwing you off' a bit. ;)
Plastic and metal rely on the 'stickiness' of wet clay,
(what IS the physics of that phenomenon, anyway?) but
plaster can suck the moisture out of the clay, reducing
its stickiness and allowing it to release at the most
inopportune moment! Try dampening the bats to varying
degrees, to see what sticks best for you.
-Snail
Earl Brunner on wed 28 may 03
Hydrobats are like plaster bats in the sense that the bats are porous
and tend to draw moisture out of the clay. This can be a good thing,
since you usually don't have many of the drying problems with pots that
have been thrown and left on a plaster bat.
I suspect that most of your problem lies with just adjusting your
throwing to the new surface. On relatively non-porous surfaces,
(plastic, formica, partical board or masonite) I never pre-wet the bat
or the bottom of the lump of clay. The clay slips and slides around if
I do. On plaster (or in this case, hydrobat) you might experiment with
sponging a little water either on the bottom of the clay or directly
onto the bat (a little experimentation will tell you how much you need
to do). This extra moisture will help the clay stay adherred to the bat
and yet the bat can still breath and will still help dry the bottom of
the pot.
-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG] On Behalf Of Elizabeth
Herod
Sent: Wednesday, May 28, 2003 5:37 PM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Novice question/plaster bats
Well there is no easy way to say this. I bought some hydrobats on the
advice of a friend, another novice, a few years more experienced.
Usually I throw off the wheel head, and sometimes use a plastibat. I
like
to use a bat so that I can let it set up a bit, then finish it off.
OK, to the point. I have tried 4 times to use the hydrobat. Nothing
has
survived the hydrobat. The first time the clay came off the bat while I
was
centering. The second and third, and 4th times I had already opened the
pot, and completed the first pull. On the subsequent pulls, the clay
comes
off of the bat, all 3 lbs of it.
The 4th time I really pressed the clay into the bat thinking that this
would
help. I still pulled it off of the bat.
So what am I doing wrong here?
Elizabeth Herod on wed 28 may 03
Well there is no easy way to say this. I bought some hydrobats on the
advice of a friend, another novice, a few years more experienced.
Usually I throw off the wheel head, and sometimes use a plastibat. I like
to use a bat so that I can let it set up a bit, then finish it off.
OK, to the point. I have tried 4 times to use the hydrobat. Nothing has
survived the hydrobat. The first time the clay came off the bat while I wa=
s
centering. The second and third, and 4th times I had already opened the
pot, and completed the first pull. On the subsequent pulls, the clay comes
off of the bat, all 3 lbs of it.
The 4th time I really pressed the clay into the bat thinking that this woul=
d
help. I still pulled it off of the bat.
So what am I doing wrong here?
In the past, I have had too light a touch, and it would take me forever to
pull. My teachers kept after me to exert a little more pressure. Now I
have been over the edge.... One teacher said, =B3push it in and then pull it
up really hard=B2 did that a couple of times and had the whole hunk of clay
in my hands. (This was when I was trying to make the bottom narrow.)
Anyway, I haven=B9t pulled the clay off a bat for sometime until the hydrobat=
.
Help, please
Thanks
Beth
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