Monday, May 26, 2008
Baltimore Clayworks
Baltimore Clayworks click and look at the people centering with their feet...looks like fun
transporting greenware
. One of the easiest methods I have discovered for carting greenware over short distances is to use inflated balloons to hold the various pieces in place while in transit. . For transporting fragile (especially bone-dry ware) over longer distances, pour a couple of inches of vermiculite (available at garden centers and drywall supply stores) into a box and lay a large sheet of thin plastic material (dry cleaner bags) on the vermiculite bed. then place the greenware piece in the center, bunch the plastic up over the piece and fill the box with vermiculite. The vermiculite can be removed from around the piece with a small hand vacuum, or it can be saved for reuse. With this method, you are able to transport even the most delicate pieces with ease. --
Tuesday, May 20, 2008
Domus Raku May 18, 2008
Thanks Charlene for a great day! Here are some photos of us and some of the finished work.
Sunday, May 18, 2008
Sunday, May 11, 2008
Youtube pottery videos
If you want a real treat, fix yourself a cup of tea (or glass of wine) and go to youtube.com and watch pottery videos--there are hundreds to learn from! what a resource--throwing, carving, decorating--the works! enjoy! Maggie
Saturday, May 10, 2008
engobes part one
engobes...colored slip article part one
ArticlesEngobesEngobes can be defined as liquid clay slips of varying compositions which are applied to the surface of a clay object, e.g. a pot. The purpose of the engobe can be as different as the varied forms it comes in: to give color to a piece; to improve the surface texture; to provide a ground to do further decoration on; to add textures.Engobes can be applied to wet clay surfaces, leather-hard ware, greenware and even bisqued wares. In each case the engobe's shrinkage rate should match that of the clay underneath, otherwise cracking (when the engobe shrinks more than the clay underneath) or shivering (when the clay underneath shrinks more than the engobe on top) can occur. While there are some basic engobe recipes around, The Potter's Complete Book of Clay and Glazes by James Chappel has a range of engobe recipes for diferent grades of moisture content and firing ranges from cone 10 up to cone 11 (for more information on cones, see cone chart).Here is a simple cone 6-11 engobe you can try out on leatherhard clay (Rhodes, Clay & Glazes for the Potter), but be sure to do some tests first, before using it on any 'important' stuff:Kaolin 25Ball clay 25Potash feldspar 20Flint (Silica) 20Zircopax 5Borax 5If applying the above to greenware or bisque, experiment by substituting increasing amounts of calcined kaolin.Application techniques for engobes also greatly vary. They range from dipping to brushing and spraying and even slip-trailing, However, in contrast to applying glazes to bisque ware, it pays to be careful when applying engobes to greenware, as the clay can soften and deform, e.g. if a pot is dipped too long. During application, wax or latex can be applied as a resist. Once the engobe has hardened, designs can be scratched in, revealing the clay body underneath.Next Page > Engobe Color Chart > 2More Articles© Ceramics Today
ArticlesEngobesEngobes can be defined as liquid clay slips of varying compositions which are applied to the surface of a clay object, e.g. a pot. The purpose of the engobe can be as different as the varied forms it comes in: to give color to a piece; to improve the surface texture; to provide a ground to do further decoration on; to add textures.Engobes can be applied to wet clay surfaces, leather-hard ware, greenware and even bisqued wares. In each case the engobe's shrinkage rate should match that of the clay underneath, otherwise cracking (when the engobe shrinks more than the clay underneath) or shivering (when the clay underneath shrinks more than the engobe on top) can occur. While there are some basic engobe recipes around, The Potter's Complete Book of Clay and Glazes by James Chappel has a range of engobe recipes for diferent grades of moisture content and firing ranges from cone 10 up to cone 11 (for more information on cones, see cone chart).Here is a simple cone 6-11 engobe you can try out on leatherhard clay (Rhodes, Clay & Glazes for the Potter), but be sure to do some tests first, before using it on any 'important' stuff:Kaolin 25Ball clay 25Potash feldspar 20Flint (Silica) 20Zircopax 5Borax 5If applying the above to greenware or bisque, experiment by substituting increasing amounts of calcined kaolin.Application techniques for engobes also greatly vary. They range from dipping to brushing and spraying and even slip-trailing, However, in contrast to applying glazes to bisque ware, it pays to be careful when applying engobes to greenware, as the clay can soften and deform, e.g. if a pot is dipped too long. During application, wax or latex can be applied as a resist. Once the engobe has hardened, designs can be scratched in, revealing the clay body underneath.Next Page > Engobe Color Chart > 2More Articles© Ceramics Today
engobes part two
Engobes
Various oxides, carbonates and commercial stains can be used to color base engobe recipes. If you want to use commercial stains, refer to your manufacturer or sales outlet for more information on what percentages to use, or experiment yourself with your own line blend. The following chart can be used as a guide for adding percentages of oxides to engobe recipes for color results. These colors refer to results obtained in oxidatiion firings. (For more information on oxidation and reduction firings, please refer to Oxidation and Reduction Firings).
Colorant
Color
Amount (%)
Iron OxideCobalt OxideNickel OxideManganese Dioxide Black 3.02.02.02.0
Cobalt Oxide Dark Blue 1.5
Copper Oxide Mid Green 3.0
Yellow Ochre Ochre 4.5
Iron Oxide Mid Tan 3.0
Rutile Creamy Tan 6.0
Iron Chromate Dark Gray 3.0
Manganese Dioxide Purple Brown 6.0
Fire in Oxidation for the above color results.
Various oxides, carbonates and commercial stains can be used to color base engobe recipes. If you want to use commercial stains, refer to your manufacturer or sales outlet for more information on what percentages to use, or experiment yourself with your own line blend. The following chart can be used as a guide for adding percentages of oxides to engobe recipes for color results. These colors refer to results obtained in oxidatiion firings. (For more information on oxidation and reduction firings, please refer to Oxidation and Reduction Firings).
Colorant
Color
Amount (%)
Iron OxideCobalt OxideNickel OxideManganese Dioxide Black 3.02.02.02.0
Cobalt Oxide Dark Blue 1.5
Copper Oxide Mid Green 3.0
Yellow Ochre Ochre 4.5
Iron Oxide Mid Tan 3.0
Rutile Creamy Tan 6.0
Iron Chromate Dark Gray 3.0
Manganese Dioxide Purple Brown 6.0
Fire in Oxidation for the above color results.
Friday, May 9, 2008
Ceramics Arts Daily
Ceramics Arts Daily has a pottery article emailed to you a couple times a week.... check out ceramicartsdaily.org to get on the list.
Charlene, the picture came through fine and clear. More! More! Maggie
Charlene, the picture came through fine and clear. More! More! Maggie
decoration
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I am testing to see if this image posts. This plate is a good example of wax resist.
charlene
Wednesday, May 7, 2008
Bristol Gallery Night...Elena hope gallery
The Bristol Gallery Coalition invite you to the first annual Bristol Gallery Night Friday May 16th 5:00-9:00 PM. The coalition consists of seven fine art and photography galleries all within walking distance of each other in historic, downtown Bristol
Tuesday, May 6, 2008
I'm Excited!
Charlene, many thanks for starting this form of sharing with your students! I have lots of "intent" to share and can't wait to hear everyone's ideas.... keep up the great work--and c'mon guys--don't be afraid to get down and get dirty!
hello
Advanced students if you have a mask could you bring it tonight...we will be mixing glazes...
t
char
t
char
just getting started
Hi All,
If you are in the advanced class Trish will be coming in to discuss your work with us at 5:30. Don't forget to bring a found object for scratching with.
If you are in the advanced class Trish will be coming in to discuss your work with us at 5:30. Don't forget to bring a found object for scratching with.
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