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  2. Fill In already fired logo in bowls

    Paper clay always has a subtle texture to it. I'm not sure I'd want to use this on a surface like a plate, where irregular surfaces would be a bad thing. But if it wasn't a plate meant for eating off of, it could work. Min's Fish Sauce recipe will give a smooth, flat surface, and that stuff really does stick to everything.
  3. There are casting slips available that you can buy ready to go. I believe Standard Ceramic is one source. Otherwise, you can take any commercial body and make it into a casting slip. If you can't buy the clay body as a dry mix, then you'll need to buy moist clay and let it dry, then break it into the smallest pieces you can before making slip with it. If you're just planning on making one or two of these pots, I would slab or coil build it. A mold that large is a big undertaking, and IMO not worth the effort for one or two pieces, especially if you're new to mold making and slip casting. Here are my calculations for the volume of plaster you'll need, for #1 pottery plaster: Your piece is 18x15x5 = 1350 cubic inches If you make the mold 2 inches thick all around, that's 22x19x9 = 3762 cubic inches. Subtract the volume of the piece from the volume of the outer mold, and that leaves 2412 cubic inches of plaster to make the mold. You need 16.312 grams of plaster per cubic inch so 16.316 x 2412 = 39,354 grams of plaster. Divid that by 454 grams/lb and you get about 87 pounds of plaster. That's a big, heavy mold. You'll need almost 6 gallons of slip to fill it, so that's another 70 pounds or so added to the weight of the mold when it's full.
  4. Why not underfire clay

    At low fire temps, it doesn't matter if it's under fired. Low fire bodies don't vitrify either, so if your glazes are working fine on a cone 6 body, then go for it. The big issue is when you're under firing at higher temps. Mid range and above, glazes are more likely to craze than low fire glazes, and when that happens the pot will leak if the body isn't fired to maturity/vitrification.
  5. Today
  6. Why not underfire clay

    When my family took a class we were given a block of clay and each of us had some left over that we took home. Since we were used to it, we bought more of the same and have continued to use it as we have progressed. Now, as I learn about clay bodies, I find that this is a mid fire clay that is to be fired to Cone 6. We have been using it as a low fire clay, with bisque to 04, and our low fire glazes at 06. So my question is, why not continue to use this clay (or even others) at low fire temperatures? We are having plenty of success, and satisfaction with our low fire efforts, and frankly, I doubt my old Scutt 231 would ramp up to Cone 6 without a whole bunch of new elements (they are ordered and on their way). I have some High Fire clay that is reputed to be excellent for beginners and students, but I could never get my kiln to High Fire temps. What happens if you don't heat the clay up to the recommended cone temp?
  7. I have taught for a very long time, including three universities and secondary school, sometimes in traditional formats but for the last decade usually in experimental formats, I am mostly retired, teaching only the Summer quarter at the state university- math.
  8. Shopping for My First Kiln

    Yappy you really do want a downdraft vent to keep fresh oxygen in the kiln. Below is the difference between a piece from a non-vented kiln then from the same kiln a piece, with same glazes, from the when the kiln was vented. Big difference in brightness!
  9. Programmer for the last 34 years. Before that was a carpenter, framing, outside trim, decks. Me and 2 other carpenters were in business together. The carpentry quit when I cut off half of my Left thumb. Back to school to get a degree. Have been programming from home since 1995. So many days I wish for being a full time potter...maybe in 3-4 more years upon retirement.
  10. PQotW: Week 41

    #3 #2 #1 question 4 -answers below #2 #3
  11. What's Your Work Music?

    Fantastic Negrito plays a good bit on BluesVille on Sirius/XM. BluesVille is my goto channel. But when throwing or glazing, same as Joseph F, I like listening to the techno or trance, which is Electric Area on Sirius/XM - they really get cranked up on Friday nights.
  12. I owned a wallpaper paint for 20 years never made much money. When the economy slowed down I closed the store and started to just decorate. Finally the bottom dropped out and I closed my decorating business. My mother had just died of ALS and I found out that I had a 50 percent chance of having ALS or MS. My husband and I decided we had enough money to live on and I should concentrate on my clay. There was a chance I wouldn't live to retirement age. I did, I just turned 65 but I do have MS, my younger sister just died of ALS she was 62. I am happily potting away in my studio what more can I ask for. Denice
  13. I dropped out of grad school for a year and worked in Cambridge, Mass at Master Charge researching errors in Billing and developed a check list for 18 locations where these mistakes could occur while also helping Mud Flats design a kiln for a building with multiple fire codes. Then went to upstate New York to work as a caretaker for a religious estate and built a pottery studio in a building with 2 dutch doors, and kiln for the estate.. then I returned to grad. school , finished, spent a year applying for jobs and working in my own studio with my potter husband until we both landed jobs. After retiring from teaching, I was an interim director of an Art Museum in Texas, taught many workshops in US and Europe, and taught at two more Universities before completely working in the studio. Marcia
  14. PQotW #41 is posted for your perusal. Kiln builders should have an easy time of it!

  15. Week 41 A kiln design that contains the walls and the arch in one curve is the________________ kiln. Sprung arch Bound arch Catenary arch Barrel arch Domes and Crowns differ from sprung arches in that an arch describes a portion of a cylinder, while a dome or crown describes a portion of a _____________. parabola sphere hyperbola cone One Principle of kiln design the author states is that the chimney is approximately one-fourth to one-fifth of the ____________________ diameter. chamber damper door total inlet A _______________________ kiln is an example of a _________________ type kiln. Down-draft anagama cross-draft updraft This weeks Pottery Quiz of the Week questions come from: The Kiln Book, second edition, Frederick L. Olsen, c. 1983, Chilton Book Company/Radnor, PA Note from Pres: In the 80's as a new art teacher, new to ceramics, I considered building my own kiln. Alas, it did not happen, but I read a lot of books on kiln building, firing, and repairs. Some of which I have used over the years, some not. However, for anyone starting with kiln construction this book is a gem. There may be newer techniques out there today, but he does cover Fiber construction, alternative fuels, and multi chambered kilns.
  16. My situation now is retired. I used to make pots to have some extra cash for vacations, and a little fun. It has come to the point where pottery is my drug, and my fix is self sustaining with a little extra for fun. My wife says I can't live without it, and she kicks me into the shop whenever I get to much like an old goat. Oh well, on and on. best, Pres
  17. Programmer, tried to go full time pottery for a couple of years and ran out of money so back to part time pottery and full time programming, Not a bad life though and now that I scratched the itch have a better understanding of the snail pace pottery should probably go for me.
  18. Doll Test Kiln

    Post a picture of your kiln and sitter. There are several possible things going on.
  19. Your work is in one of my raku books (S.Branfman). Horses and a great white heron - so beautiful!

    1. Marcia Selsor

      Marcia Selsor

      yes. I am. Thanks!

      My raku pieces are also in Raku; a practical Approach by Steven as well plus lark's book on Raku and Advanced Raku by Bill Jones and Alternative Kiln by Watkins and Wandless.

      Marcia

       

  20. What's Your Work Music?

    I usually listen to a bit of techno or trance music with very little words. However lately I have been listening to Fantastic Negrito. You have to really be in the mood to make the pots that you make with this stuff playing. It definitely alters the forms you make if you really let it get to you. https://youtu.be/PH-G8vBpG9o https://youtu.be/3B4FSeeXUaE just a bonus: https://www.youtube.com/watch?v=6Ws-GZVAj20 - no one knows who wrote this though.
  21. Shopping for My First Kiln

    You can build your own vent system pretty cheap. I just ordered the attachment box for the stand and I built the rest myself. There is no reason to pay 500 dollars unless you just want to. I think mine ended up costing 150 bucks all said and done. I later upgraded($80) the piping to the stuff that Neil recommended. I would start with that now if I was doing it again.
  22. I decided to do this with half of the stoneware type , half of 213 porcelain and add some kyanite. I read up on mixing and deflocculating the slip. It seems like the difficulty is letting it dry very slowly. I have a garage freezer not in use so ill put it in there.
  23. I decided to make a " late in life" career change. After 42 years of building houses, developing subdivisions: and teen years plowing, planting, and milking cows: thought it was time. My new profession included being a couch tater, laziness, and idleness in general. So far my new profession has not panned out; people keep calling me to build stuff. Nerd
  24. What's Your Work Music?

    Generally, I prefer the birds tweeting outside, the rustle of the trees, and the distant buzz of a chainsaw. But if I do fancy a little bop, it has to be Donald Fagen's Kamakiriad, if only because it's jammed in the CD player, has been for months, and I can't change it for anything else without completely dismantling the machine. Good job I like it...
  25. chinese lime glazes

    Has anyone had any experience with chinese lime glazes. they are calcareous rather than feldspathic glazes, consisting solely of a silaceous clay 60 percent and a high calcium wood ash 40 percent. I am just starting trials and would appreciate any knowledgeable feedback.
  26. korean celadon

    i have just been reading about chinese lime glazes which consist solely of a silaceous clay 60 percent and the rest is a high calcium wood ash. read chinese glazes by nigel wood. the results look remarkably like celiadons. i am about to start my own test trails let me know how you go. from what i am reading the firing sequence is important
  27. What music do you listen to (if you're able to) when you work with clay? For my part it's usually the new age genre. I make my own mix tapes when possible when I can catch a radio show, but since there don't seem to be any around since I moved, and I get sick of my vast collection of cassettes, these days I mostly type an artist into Youtube and let it roll with minor adjustments. Here's a link I use repeatedly for Brian Eno: https://www.youtube.com/watch?v=WPOLT2veHNE&list=RDWPOLT2veHNE&t=2
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