Joe Shaw's Page

Latest Activity

Joe Shaw posted a status
"I used Numbers and exported."
Jul 4
Norm Stuart commented on Joe Shaw's status
"Joe  -  My Office Excel version 2010 can open your Unifying Calculator file, but my 2000 version of Office cannot. Which version of Excel was used to make this spreadsheet ?"
Jul 4
Joe Shaw posted a status
"Here's a link to a glaze unifying calculator I made. It can also calculate the batch amounts for you. http://j.mp/1mQeBpl"
Jul 4
Joe Shaw and Kabe Burleson are now friends
Jul 4
Carolyne Tighe commented on Joe Shaw's photo
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"Beautiful!"
May 26
Zack Haselman commented on Joe Shaw's photo
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"this is great!"
May 25
Jeff Poulter commented on Joe Shaw's photo
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Obsidian, SCM and Jen's

"So I mixed up some Obsidian last night.  I was worried about  cracking and crawling with the Alberta Slip at such a high percentage of the glaze, so I did 40 Alberta Slip & 35 Ohio Slip.  Even when layered, there were no cracking…"
May 23
Jeff Poulter commented on Joe Shaw's photo
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Obsidian, SCM and Jen's

"Eric Preece had a ^6 version of Obsidian that he used.  Off of his website, it is: Alberta Slip   75 FF 3134    25 Cobalt Carb   5      I can't remember if I tried it or not.  I may have to whip some…"
May 22
Joe Shaw posted a status
"Interesting article about iron glaze from 1,000 years ago on Chinese tea bowls. http://j.mp/1m7APX4"
May 22
Joe Shaw commented on Joe Shaw's photo
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Obsidian, SCM and Jen's

"The recipe for Obsidian is from Richard Aerni. Alberta Slip 91.0 Cobalt Ox. 9.0 Instead ofCobalt Oxide I use Robin Hopper's Black Stain. Black Stain (Robin Hopper) Cone: Color: Black Firing: Ox. or Red. Surface: Amount Ingredient 20 Iron…"
May 22
George Lewter commented on Joe Shaw's photo
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Obsidian, SCM and Jen's

"Is the "obsidian" the commercial glaze from AMACO?"
May 21
Donna Kat commented on Joe Shaw's photo
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Obsidian, SCM and Jen's

"This is so striking.  I am surprised I missed it and only found it because I was looking for your profile picture to link to for someone asking about Steven Hill glazing. "
May 21
Lawrence Weathers commented on Joe Shaw's photo
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SCM Warm under Randy's Red

"thanks that helps"
Mar 19
Joe Shaw commented on Joe Shaw's photo
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SCM Warm under Randy's Red

"I dipped the rim to the curve break where the handle attaches with SCM Warm (6 count)then dipped the entire mug in Randy's Red to a 6 count."
Mar 19
Lawrence Weathers commented on Joe Shaw's photo
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SCM Warm under Randy's Red

"very striking  what is the combination of glazes you used to achieve this?"
Mar 18
Norm Stuart commented on Joe Shaw's photo
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"SCM is an abbreviation for the underglaze, Strontium Crystal Magic. The recipe for these glazes, along with hundreds of others with photos, are in George Lewter's Insight Live Database. http://cone6pots.ning.com/group/insight-live-users-group"
Feb 28

Profile Information

What is your experience with ceramics in general. (Long answer encouraged)
professional
What is your current involvement with electric fired ceramics? (long answer encouraged)
I fire cone 6 porcelain.
All our content is viewable by the public. Why do you want to be a member, rather than just browsing our network anonymously? (long answer encouraged)
Conversation about Cone 6 electric firing.
Where do you work on your ceramics projects?
home studio
Do you have your own, or participate in other ceramics Websites:
http://shawpottery.com
How did you find this network?
search engine

Firing Schedules

My Present Firing Schedule:

Began use at: 10/20/2012:

200°F/hour to 220° hold 30 minutes
400°F/hour to 2100° no hold
100°F/hour to 2180° 60 min.
40°F/hour to 2140° 30 min.
300°F/hour to 1700° 60 min
50°F/hour to 1600°  - off
I slowed the cool-down at the top end and put in additional soak at 1700° toward the end to address some pin-holing some of my glazes were having. This opened up a new look in my SCM / Randy's Red combination. Lost the matte and gained a gloss (that seems inverse of rule of thumb). The gloss is more food friendly. And I gained additional color response.
Firing schedule until:
10/20/2012

200°F/hour to 220° hold 30 minutes
400°F/hour to 2100° no hold
100°F/hour to 2180° 60 min.
100°F/hour to 1700° hold 60 min.
50°F/hour to 1500° hold 30 min then off

This yields some nice crystal growth. Some surfaces seem drier but I think that can be modulated with the amount of SCM I apply. We'll see. It seems like I'm getting some wonderful iron conversion to pyrite (reflective gold-colored crystals in the glaze).

I wasn't getting the rich colors by letting the kiln cool naturally to 1700° so I fired down at 400° per hour.

Firing Schedule until 2/18/12:

200°F/hour to 220° hold 30 minutes
400°F/hour to 2100° no hold
100°F/hour to 2180° 60 min.
400°F/hour to 1700° no hold
50°F/hour to 1600° 30 min then off

Steven Hill 2/13/12:
Ramp 1: 200ºF/hour to 220ºF Hold 1 - 3 hours, depending on the dampness and or thickness of the work.
Ramp 2: 100ºF/hour to 500ºF No hold
Ramp 3: 400ºF to 500ºF/hour to 2100ºF No hold
Ramp 4: 100ºF/hour to 2160ºF-2190ºF 60 Minutes—this temperature is about cone 5, with an hour soak Cone 6 should fall. Not all kilns are calibrated the same, some adjustment may be necessary.
Ramp 5: 9999ºF/hour to 1700ºF No hold
Ramp 6: 50ºF/hour to 1600ºF 45 - 60 minutes
Ramp 7: 50ºF/hour to 1500ºF No hold, kiln off.

Pete Pinnell firing schedule for Tomato Reds:
Ramp 1: 250° F per hour to 2000° no hold. 
Ramp 2: 100° F per hour to 2170° F (come 6). No hold
Ramp 3: 150° F per hour to 1900°. No hold. 
Ramp 4: 50° F per hour to designated soak temperature. 

Hold soak up to three hours

Switch off. 

Joe Shaw's Photos

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Comment Wall (6 comments)

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At 11:16am on February 18, 2012, George Lewter said…

Wow, you did a great job on you profile page, Robert. Did you know that you can take the profile question, "What is your current involvement with electric fired ceramics?" and turn it into an extended autobiography? (or you can let your pots speak for themselves)

At 11:39am on January 22, 2012, Jo Ann Reno said…

I found the SCM glaze formula! THanks, I will keep looking, I am figuring out this web site.

At 10:39am on January 22, 2012, Jo Ann Reno said…

I am new to the site, remind me what SCM is and where I might find info (formula) for it and the other glazes you use, if you are willing to share. They are beautiful. Thanks. The beer steins are incredible.

At 10:37am on September 10, 2011, Andra Hughes said…
Pleased to meet you!  Your work is beautiful.  I am an intermediate level potter and only have available to me cone 6 electric kiln and am craving the look of cone 10.  I love your glazes and just now I think I noticed that you usually use porcelain.  I do not but I joined this site to hopefully get tips on getting the look I want.  Still trying to find my way around the site!
At 4:31pm on May 19, 2011, Michele Hartung said…
Also, these glazes are well behaved except for the ash, they don't run.  Put the Petes on thickly, otherwise it's a pretty ugly brown.
At 4:30pm on May 19, 2011, Michele Hartung said…
I find that the Pete's is dry, but beautiful, especially if you use the SH firing schedule with a slow cool.  What color is your clay body?  It looks like you used the Pete's in the very center.  What is the blue color in the rim area?  Try layering the Petes with the Watercolor green and the strontium for light colors for some very wowie effects!

Joe Shaw's Blog

We are having a "Save Our Pottery Studio" Raffle, with three wonderful prizes of Shaw Porcelain Pottery.

Posted on August 3, 2012 at 4:15am 4 Comments

HELP SAVE OUR POTTERY STUDIO!! 

WE ARE RAFFLING OFF NOT ONE, BUT THREE BEAUTIFUL HANDCRAFTED PIECES OF SHAW PORCELAIN POTTERY, FIND TICKETS AT:

http://www.shawpottery.com/Shaw_Pottery.com/Contact_us%21.html…

Continue
 
 
 

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Use These Links to Support Us

Purchase Glazes Cone 6 by Michael Bailey, The Potters Book of Glaze Recipes by Emmanuel Cooper, or Making Marks by Robin Hopper, all available at amazon.comMastering Cone 6 Glazes by John Hesselberth & Ron Roy is now out of print.

Harbor Freight is a great place to find unbeatable prices for better HVLP spray guns and serviceable economy models, as well as detail guns, all tested by our members for spraying glazes, as well as compressors to power the guns. As yet no one has tested and commented on the remarkably inexpensive air brushes at harbor freight.

The critter siphon gun is a spray alternative that is well liked by some of our members, and is available at amazon.

Amazon is also a competitive source for photo light tents for shooting professional quality pictures of your work. They also have the EZ Cube brand favored by several of our members. You might also want to purchase the book Photographing Arts, Crafts and Collectibles . . .

If you are up to creating videos of your work or techniques you might want to invest in a flip video camera

Following are a few scales useful for potters. Your final price could be less or more - things change.

American Weigh Black Blade Digital Scale, 1000g X 0.1g $11.08 

For the non-digitally inclined the old standard Ohaus Triple Pro Mechanical Triple Beam Balance, 2610g x 0.1g, with Tare $169.00

And finally a low cost clone of the OHaus. The Adam Equipment TBB2610T Triple Beam Mechanical Balance With Tare Beam $99.62

ebay is a great alternative for many tools and the equipment used in the ceramics studio - kilns, wheels, extruders, slab rollers are often listed there both new and used.

Tips for Members

If you just want to spout off, it is best accomplished as a blog posting. If you want to get more guidance and ideas from other members, ask a question as a new discussion topic. 4/16/2014

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