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Marcia Selsor

Member Since 16 May 2010
Offline Last Active Today, 09:31 AM

#107726 Reduction Fire ^5/^6 Gas Length Of Time

Posted by Marcia Selsor on Yesterday, 06:50 AM

I fired ^6 reduction for 20 years in Montana at Montana State University in Billings.. I did very much the same thing. Start with candling the kiln for an overnight soak, come in at 7 am to turn it up and continue. Body reduce between 09-04 (guide cone)  and continue to when 5 was starting . I usually reduced for 45 minutes, clear the kiln for 5-10 minutes and shut down. Close the burners and peeps. Depending on the size of kilns, how it is loaded /density of work, the firing varied. One kiln was about 45 cubic feet. The large kiln was a car kiln and had huge burners chosen by the facility services and not me. It was difficult to fire slowly. Both kilns were designed and built by me. They usually finished between until 3-6 pm.  Reduction does not have to create a lot of smoke. I use the stick method of holding a stick in a reduction flame coming out a peephole. If it doesn't burn, the kiln is reducing. Depending on the gas source the flame can be purplish, blue or green.



I also fired  ^6 reduction in a large Olsen updraft when I taught at UT Brownsville outside on a covered pad. I did not know it well enough to soak overnight so I following the previous instructors kiln log and fired it easily and evenly. I started the initial firing at 7 and turned it up every hour. It had 14 burners coming through the floor and was an updraft. Body reduction from 09 for 1/2 hour to 45 minutes 04 was more of a guide cone, then up to ^10 the first 2 times  them I fired to ^6 the second semester. These firing went from 7 am to about 9 pm. The kiln was about 100 cu ft. and back breaking to load.


I taught a ^6 reduction firing workshop at Corpus Christi Art Center in a newer Bailey kiln. Nice kiln. The man who had purchased and fired the kiln had passed away. I found the target bricks on the shelf in the kiln room and placed them in the combustion area of the kiln. Loaded the kiln and fired it in about 12 hours I think. 


All these firing produced copper reds, celadon, iron reds, tenmoku, They looked like ^10 glazes. 


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#107640 Technical And Spiritual

Posted by Marcia Selsor on 27 May 2016 - 06:01 AM


I think it is. Jazz can take you places.


#107560 Qotw: Do You Have A Story For Us, Featuring Tom Roberts (Aka Tjr) ?

Posted by Marcia Selsor on 26 May 2016 - 04:42 AM

TJR has been a forum friend for many years. We shared stories and chats for many years. He finally came to NCECA 2 years back. He visited the Potters Council Booth many times during the event and we chatted quite a bit during those moments. As Evelyne said he jumped in to help us pack up the show. We wanted to go out and have a beer together but our schedules never seemed to coincide. I walked back to the hotel with Pres and Tom. It was my first time meeting Pres as well. Tom gave a brilliant story at the Clay stories. My potter friend from 25 years ago , Anne Faliis, moved to the Manitoba area about 10 years ago and was well aware of Tom's professional reputation there. He was a large force in Clay in the Manitoba area.
He was generous with his knowledge and had a warm and knowing smile. It was a pleasure to finally meet him in person.Myself and others invited him to run for the Board and he was elected. It is such a loss to us all to have him taken before he could serve on the Board and share his warmth as well as knowledge. RIP Tom.

#107401 Two Pieces Ruined, Help Needed

Posted by Marcia Selsor on 24 May 2016 - 02:36 AM

Could you post a photo?

#106954 Will The Eye Of The Epa Look Further At "art" Makers And What We Use?

Posted by Marcia Selsor on 16 May 2016 - 05:44 AM

We use much more than lead. Thanks for posting , John.

#106733 Alternative Firing E-Course Discussed By Marcia Selsor And Antoinette Badenhorst

Posted by Marcia Selsor on 11 May 2016 - 09:05 PM

I didn't share it. Antoinette did. But thanks anyway. It was fun to do the course. We are still working on editing and organization.

#106630 Giving Shoppers A Sense Of Scale

Posted by Marcia Selsor on 10 May 2016 - 11:01 AM

I did this for reference but not for a serious image of a piece.



#106614 Nature's Inspiration

Posted by Marcia Selsor on 10 May 2016 - 08:57 AM

Montana has inspired many artists by the beauty and environment. Here is a great video on the Pryor Mountain Wild Horse range. It has been inspiring me ever since a hard of wild horses came out of a cloud and surrounded our 2 cars on a clay digging field trip. We decided to continue to the top of the mountain after digging clay. http://www.ofgreatin...d-pryor-horses/

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#106584 Qotw: .... What Would Be A Logical Follow Up Question?

Posted by Marcia Selsor on 09 May 2016 - 03:15 PM

here is my little aspire wheel with a diamond adhesive wheel attached to a designated bat. I used this to clean the bottoms of some of the wood fired pieces from the pre-NCECA firings.I have been traveling a lot since them. Leaving for Scottish Potters Association workshop May 21-22.

MarciaAttached File  Aspirewheel.jpg   44.4KB   0 downloads

#106507 Hunt For Perfect Turquoise Glaze

Posted by Marcia Selsor on 08 May 2016 - 06:43 AM

former coop studio sign used a turquoise. they can be very sensitive to thickness and cooling cycle.

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#106410 Got A Brand Shimpo Aspire....aaaand It's Clunking. Normal?

Posted by Marcia Selsor on 06 May 2016 - 12:23 PM

I got one and have been using it for a diamond sanding disc. No clunking. Call them. Maybe the splash pan isn't on right?

If not, call a Shimpo rep.



#106180 Handbuilding Advice Please For Newbie

Posted by Marcia Selsor on 03 May 2016 - 06:30 AM

You should probably get an earthenware/terra cotta  clay. Roll out the base using a board covered with a cloth or paper. Place on a turntable.


Then start rolling coils and attaching them (score and slip), smoothing and forming as you go.



#106092 How To Spot A Good Pot, Part 2

Posted by Marcia Selsor on 02 May 2016 - 07:06 AM

I think they show good examples of work but it is their marketing ploy. They are asking very respectable prices for their gallery artists/potters while dictating taste.

#106057 Treadle Versus Electric Wheel - Any Advice Please?

Posted by Marcia Selsor on 01 May 2016 - 09:22 AM

Treadles wheels can be very soothing but I think it may be physically taxing because of standing constantly. I would take your dead wheel to an appliance repair shop. It is either a fuse, switch, motor, and pedal. Some repairmen are really amazing.


#106049 Burn Out Plastic In Kiln?

Posted by Marcia Selsor on 01 May 2016 - 05:44 AM

I wouldn't burn rubber/plastic in a kiln. Very toxic.