iandol on fri 20 oct 00
Those potters and ceramists who continue to insist that parts which are =
to be joined should be scored and saturated in slurry may be interested =
to know about the latest developments in making joints.
Cup handles are being extrusion cast and before they are stripped from =
their moulds, attached to the body of the cup. This is done by vibrating =
the clay to induce thixotropicity in the ends of the handle as it comes =
into contact with the clay of the cup body. The result is an almost =
instant welded joint with no excess clay to fettle and precise =
placement. Production rate of the cup blanks is about 1200 per hour but =
the best which can be achieved by the handle making machine is about 120 =
per hour. So the set up has multiple stations for making and attaching =
the handles.
Another interesting point is the mould material. Traditional plaster =
has been abandoned in favour of a porous plastic. Presumably this has =
greater durability.
Ivor.
Cindy Strnad on sat 21 oct 00
Hello, Ivor
Wow, those industrial types *are* creative, aren't they? Attaching a handle
with a vibrating machine. And I just have to "vibrate" mine on by
hand. It is encouraging to hear, though, as I use this method, plus a light
spray of vinegar, to attach my handles, too.
I'd like to hear more about this porous plastic, though. Would it make a
good material for bats?
Cindy Strnad
Earthen Vessels Pottery
RR 1, Box 51
Custer, SD 57730
USA
earthenv@gwtc.net
http://www.earthenvesselssd.com
John Rodgers on sat 21 oct 00
Ivor,
Being a mold maker for for a very long time, anything new in this field interests me...and that hasn't been a whole lot new in a long time....but this porous plastic really has caught my attention. Can you tell me more about it.
John Rodgers
Birmingham, AL
iandol wrote:
> Those potters and ceramists who continue to insist that parts which are to be joined should be scored and saturated in slurry may be interested to know about the latest developments in making joints.
> Cup handles are being extrusion cast and before they are stripped from their moulds, attached to the body of the cup. This is done by vibrating the clay to induce thixotropicity in the ends of the handle as it comes into contact with the clay of the cup body. The result is an almost instant welded joint with no excess clay to fettle and precise placement. Production rate of the cup blanks is about 1200 per hour but the best which can be achieved by the handle making machine is about 120 per hour. So the set up has multiple stations for making and attaching the handles.
> Another interesting point is the mould material. Traditional plaster has been abandoned in favour of a porous plastic. Presumably this has greater durability.
> Ivor.
>
> ______________________________________________________________________________
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at melpots@pclink.com.
Bob Hanlin on sun 22 oct 00
Interesting, but since I only make 8 or 16 mugs at a time I stick to slip
and scoring!
BobH.
----- Original Message -----
From: "iandol"
To:
Sent: Friday, October 20, 2000 2:55 AM
Subject: Handle attachment
Those potters and ceramists who continue to insist that parts which are to
be joined should be scored and saturated in slurry may be interested to
know about the latest developments in making joints.
Cup handles are being extrusion cast and before they are stripped from their
moulds, attached to the body of the cup. This is done by vibrating the clay
to induce thixotropicity in the ends of the handle as it comes into contact
with the clay of the cup body. The result is an almost instant welded joint
with no excess clay to fettle and precise placement. Production rate of the
cup blanks is about 1200 per hour but the best which can be achieved by the
handle making machine is about 120 per hour. So the set up has multiple
stations for making and attaching the handles.
Another interesting point is the mould material. Traditional plaster has
been abandoned in favour of a porous plastic. Presumably this has greater
durability.
Ivor.
____________________________________________________________________________
__
Send postings to clayart@lsv.ceramics.org
You may look at the archives for the list or change your subscription
settings from http://www.ceramics.org/clayart/
Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.
Tom Wirt/Betsy Price on sun 22 oct 00
> Hello, Ivor
>
> Wow, those industrial types *are* creative, aren't they? Attaching a
handle
> with a vibrating machine. And I just have to "vibrate" mine
on by
> hand. It is encouraging to hear, though, as I use this method, plus
a light
> spray of vinegar, to attach my handles, too.
>
Hi.
I solved this some time ago. Got one of those old barbers vibrators
that fit over the back of your hand. Grab the handle, turn on the
vibrator and buzz that sucker right onto the pot.
Tom Wirt
Steve Mills on tue 24 oct 00
I use a wet toothbrush, no scoring, makes its own slip.
Steve
Bath
UK
In message , Bob Hanlin writes
>Interesting, but since I only make 8 or 16 mugs at a time I stick to slip
>and scoring!
>
>BobH.
>----- Original Message -----
>From: "iandol"
>To:
>Sent: Friday, October 20, 2000 2:55 AM
>Subject: Handle attachment
>
>
>Those potters and ceramists who continue to insist that parts which are t=
>o
>be joined should be scored and saturated in slurry may be interested to
>know about the latest developments in making joints.
>Cup handles are being extrusion cast and before they are stripped from th=
>eir
>moulds, attached to the body of the cup. This is done by vibrating the cl=
>ay
>to induce thixotropicity in the ends of the handle as it comes into conta=
>ct
>with the clay of the cup body. The result is an almost instant welded joi=
>nt
>with no excess clay to fettle and precise placement. Production rate of t=
>he
>cup blanks is about 1200 per hour but the best which can be achieved by t=
>he
>handle making machine is about 120 per hour. So the set up has multiple
>stations for making and attaching the handles.
>Another interesting point is the mould material. Traditional plaster has
>been abandoned in favour of a porous plastic. Presumably this has greater
>durability.
>Ivor.
>
>_________________________________________________________________________=
>___
>__
>Send postings to clayart@lsv.ceramics.org
>
>You may look at the archives for the list or change your subscription
>settings from http://www.ceramics.org/clayart/
>
>Moderator of the list is Mel Jacobson who may be reached at
>melpots@pclink.com.
>
--
Steve Mills
Bath
UK
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