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Marcia Selsor

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Posts posted by Marcia Selsor

  1. On 12/29/2020 at 3:26 AM, tomhumf said:

    I get through quite a bit of gas firing my kiln with one burner, the tanks are freezing up while they are still half full. It's not really practical to run water on them.

    I think if I connect two together they will stay thawed for longer, I'm not sure the best way. I've found this connector , which I would use with my existing regulator connected after the T junction. 

    https://www.ebay.co.uk/itm/New-LP-Propane-Gas-90Cm-2-way-Hose-Connector-Coupler-of-Two-Gas-Tanks-Acme-Nut-/264275507385?_trksid=p2349624.m46890.l49292

    May be stupid question, but do the valves on top of tanks only work one way? If I have mismatched tanks I'd want the emptier one to run out, not get filled up by the fuller one. 

    Would it matter that gas would be at full pressure before the T junction, or would it be better to have a regulator joined at the valve of each tank? 

    Marc Ward plumbed my burners. 2 tanks per burner. I fire with 2 burners on my large raku kiln. The two  tanks share one regulator.  
    No freezing. Inset my regular at 5 lbs pressure maximum. I added a photo I think in the next post. 

     


    Marcia 

  2. I throw porcelain and I use Coleman's Porcelain from Aardvark. It is a ^10 porcelain but  I use it for alternative firing processes. For ^6 porcelain I have been using Lindsay's, Archie Bray Porcelain for ^6 and recently I tried Plainsmen ^6 Ice. It is expensive but I may have to get more because it is translucent and I love carving it.

    I learned large hand building from Bill Daley when I was in college. He built many large scale commissions using brickyard clay. World of difference from porcelain. He also fired his work at the brick yard on their conveyor kilns.  To work very large the clay needs to have grog which allows thick clay to shrink more evenly and avoid cracking. It avoids warping too.  Bill Daley http://www.williamdaley.net/about.html

     

    If you look up Carlo Zauli for Faenza, you will see many large scale works glazed  white. The famous ceramics town, Faenza, is decorated with his large sculpture from the train station top downtown. Here are some examples.

    Carlo Zauli, le opere: ricerche geometriche

     

  3. On 9/30/2019 at 7:57 PM, glazenerd said:

    Marcia:

    Speaking of crystalline glaze- I read a thesis paper on crystalline glaze written by a student at SIU-C in 1973. As a historical perspective: 1973 was 25 years before any formal books on crystalline glaze was published ( Macro Crystalline Glaze by Peter Isley) I have read it several times: the insights and theorem are well within the boundaries of modern crystalline chemistry. The author of this thesis paper was YOU.

    T

     

    written on a typewriter.!

    Marcia

  4. Ball clay and a few drops of Darvon 7. The measurements in the video are off. It is a 591 ml bottle filled 3/4 of the way so it is really a 1/2 liter. for a full liter use 500 grams for 1/2 liter use 250 grams of clay

    I use copper carb. and salt  mixture on a bed of sawdust  I add seaweed bits  and orange peels wedged in between the wall and pots Raise the pieces out of the combustibles on a piece of kiln shelf or brick. Saggars are not barrel firings and don't need all the combustibles. How are you firing the saggars?

     

     

  5. Thanks Babs.

    Hi Georgia.  Here are examples of my recent saggar firings.  I make clay saggars and fire in my raku pulley kiln as seen below. I keep a 1" space between the pot and the wall of the sagger as suggested by Linda and Charlie Riggs. We all use and burnish terra sig and bisque to 08. This allows the surface to be absorbent to whatever you are burning in the saggar.  Maybe your space is too tight or maybe you have too much burning inside. Are you throwing in any table salt? That helps with getting things fuming. What are you burning?

     

    MSeL 42.jpg

    Selsor_Marcia_Wispy.jpeg

    saggarpinkblushwblue.jpg

    potsinsaggers.jpg

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