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reading cones

updated sat 23 jul 05

 

taube wilson on mon 8 may 00

Ginny,
Go to Orton's website: http://www.ortonceramic.com/

Click on Products for Firing, then on Pyrometric Cones and Bars.

Taube Wilson
Annandale, Va.
tpottery@hotmail.com

ginny bivaletz on mon 8 may 00

we are a bit confused as to exactly what a cone looks
like when temperature is reached. i wonder if someone
with a website and the ability to post a picture would
be so kind as to show what a cone that has reached
it's temperature looks like. when i read a
description , i have a hard time knowing if that is
what i am looking at in front of me. thank you ginnyB
on orcas island

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taube wilson on mon 8 may 00

Ginny,
Go to Orton's website: http://www.ortonceramic.com/
Click on Products for Firing, then on Pyrometric Cones and Bars.

Taube Wilson
Annandale, Va.
tpottery@hotmail.com
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Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com

Frederich, Tim on thu 11 may 00

Ginny,
You can go to our web site at www.ortonceramic.com and find the
information that you want. The end point of the cone is always considered to
be when the tip of the cone reaches the 6 o'clock position or is almost
touching the kiln shelf or plaque holding the cone. This does not have to be
an exact type of thing since there would be only a couple of degrees
difference in temperature if the tip of the cone was under or over this
clock position by a small amount. If you have questions please contact me.

Tim Frederich, Orton Ceramic Foundation

> ----------
> From: ginny bivaletz[SMTP:ginnybiv@yahoo.com]
> Sent: Monday, May 08, 2000 12:20 AM
> To: CLAYART@LSV.UKY.EDU
> Subject: reading cones
>
> ----------------------------Original message----------------------------
> we are a bit confused as to exactly what a cone looks
> like when temperature is reached. i wonder if someone
> with a website and the ability to post a picture would
> be so kind as to show what a cone that has reached
> it's temperature looks like. when i read a
> description , i have a hard time knowing if that is
> what i am looking at in front of me. thank you ginnyB
> on orcas island
>
> __________________________________________________
> Do You Yahoo!?
> Send instant messages & get email alerts with Yahoo! Messenger.
> http://im.yahoo.com/
>

mel jacobson on sat 2 jul 05


tim frederich gave a good tip at the farm.

make a small, flat clay wall behind your cones, paint it with iron
oxide. you will see the cones against this tiny wall and they are
easy to see.

i actually envision making a cone pack with a tiny wall built up
painted with i.o.
like a little stage set. should work.
for those that cannot see cones..try this..see if it works.
then report back to clayart.
mel
from mel/minnetonka.mn.usa
website: http://www.pclink.com/melpots

Edouard Bastarache Inc. on sat 2 jul 05


Hey Mel,

please, could you ask Tim if a back wall made up of a very dark
burning clay would give the same result.


Later,



"Ils sont fous ces quebecois"
"They are insane these quebekers"
"Están locos estos quebequeses"
Edouard Bastarache
Irreductible Quebecois
Indomitable Quebeker
Sorel-Tracy
Quebec
edouardb@sorel-tracy.qc.ca
www.sorel-tracy.qc.ca/~edouardb/Welcome.html
http://www.ceramique.blogspot.com/
http://perso.wanadoo.fr/smart2000/index.htm
http://www.digitalfire.com/education/toxicity/

Lee Love on sun 3 jul 05


On 2005/07/03 9:45:52, Edouard Bastarache Inc.
(edouardb@sorel-tracy.qc.ca) wrote:
>
> please, could you ask Tim if a back wall made up of a very dark
> burning clay would give the same result.

I am wondering if this practice could effect the accuracy of the
cones? Ken Matsuzaki coats saggers with iron oxide and them places
shino pots in them. The iron migrates from the sagger surface and
give the shinos fire color.


--

Lee in Mashiko, Japan

Jo Smith on sun 3 jul 05


Will try it, wonder if you make a separate wall if it could be reused? Not
lazy just trying to save a little bit of time...Jo


----- Original Message -----
From: "mel jacobson"

>
> make a small, flat clay wall behind your cones, paint it with iron
> oxide. you will see the cones against this tiny wall and they are
> easy to see.
>

Lee Love on sun 3 jul 05


Jo Smith wrote:

>Will try it, wonder if you make a separate wall if it could be reused? Not
>lazy just trying to save a little bit of time...Jo
>
>
How about just using a tenmoku pot? Hate to waste the space.

I don't have problems seeing cones in my kiln. I always
look just before the next stoke and it is pretty clear by then.

--
Lee Love
in Mashiko, Japan http://mashiko.org
http://hankos.blogspot.com/ Visual Bookmarks
http://ikiru.blogspot.com/ Zen and Craft

Taylor from Rockport on sun 3 jul 05


Mayor Mel und all de oders:

I'm not sure if there was another start to this thread, but I have done just
this as an experiment for seeing cones in my cone 6 electric firing. I made
a "stage" of tan firing clay, washed the bottom with kiln wash and painted
on a crosshatch of Fe oxide. I could see the cones just fine. I could tell
no difference between the staged cones and the other cones next to pots as
far as bend is concerned. I fired at least twice to cone 6 with the stage
and it is doing fine though I made it too short to fit three cones with
their wire holders. Now that I have enough experience with trying to see
cones in my kiln, I think it is overkill (for me anyway).

I'm sure higher firing and redux firing are another story, though with a
similar ending?

Taylor in Rockport TX

On Sat, 2 Jul 2005 19:33:32 -0500, mel jacobson wrote:

>tim frederich gave a good tip at the farm.
>
>make a small, flat clay wall behind your cones, paint it with iron
>oxide. you will see the cones against this tiny wall and they are
>easy to see.
>
...
..see if it works.
>then report back to clayart.
...


Lee Love on mon 4 jul 05


On 2005/07/04 12:10:28, wirerabbit@yahoo.com wrote:

> I'm sure higher firing and redux firing are another story, though
with a
> similar ending?

Taylor,

I think it is a reduction atmosphere that makes the cones
difficult to see, combined with white hot temps.

Did you get a chance to peekat the cones in Tony's dragon? (Did
you take Tony some of Wacos best? Non-corn syrup Dr. Pepper? Give me a
Dr Pepper over a Coors anyday. ;-) )

My teacher always measured the finished of a firing, whether it
is gas, wood, or enamel, by pulling glazed test tiles. The cones,
more or less, were just marked for when the tiles should be pulled.

--
Lee In Mashiko, Japan

UU KRC on wed 6 jul 05


Anybody considered using a piece of soft brick stained
with Iron Oxide for the cone pack backdrop? I would be
reusable and it could be restained if the I.O. should
start burning off.

Jared
In central Washington - not a tree in sight and the
wind is driving me slightly batty.

--- Jo Smith wrote:

> Will try it, wonder if you make a separate wall if
> it could be reused? Not
> lazy just trying to save a little bit of time...Jo
>
>
> ----- Original Message -----
> From: "mel jacobson"
>
> >
> > make a small, flat clay wall behind your cones,
> paint it with iron
> > oxide. you will see the cones against this tiny
> wall and they are
> > easy to see.
> >
>
>
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>
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>
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> reached at melpots@pclink.com.
>




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Tim Frederich on tue 12 jul 05


Victoria,
You should not use any oxide or other material on the cone. Any of these
materials can change the melting point of the cone. The color that Orton
puts in the cones is a water based product that burns out early and does not
affect the cone.

Lower firing cones that have RIO in them work because of the precise amount
in the formula and the blending process.

Respectfully,

Tim


Tim Frederich
Diversified Ceramic Services Inc.
7144 Scioto Road
Dublin, Ohio 43017
614-946-2156
614-873-6614 fax
tfrederich@hotmail.com

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Earl Brunner on tue 12 jul 05


For your application, you could do some tests to see just how much an oxide
MIGHT affect the melt of the cone, do some firings with treated and
untreated cones side by side.

Earl Brunner
Las Vegas, NV
-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG] On Behalf Of Tim Frederich
Sent: Monday, July 11, 2005 9:02 PM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Reading Cones

Victoria,
You should not use any oxide or other material on the cone. Any of these
materials can change the melting point of the cone. The color that Orton
puts in the cones is a water based product that burns out early and does not
affect the cone.

Lower firing cones that have RIO in them work because of the precise amount
in the formula and the blending process.

Respectfully,

Tim


Tim Frederich
Diversified Ceramic Services Inc.
7144 Scioto Road
Dublin, Ohio 43017
614-946-2156
614-873-6614 fax
tfrederich@hotmail.com

Chris Trabka on fri 22 jul 05


I read the post in the archives from the first week in July.

Realize that looking at cones without proper eye protection will result in
eye damage (similar to looking directly at the sun).

I have used a pair of welding goggles to view my cone packs. They are
always easy to read. I fire to cone 10 in a high reduction atmosphere.

Chris