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Everything posted by oldlady

  1. What are cone temperatures

    denise, thank you for the question. i had not seen the post above by Isculpt so i did not know i was, ( have been, am) considered "mean" oldlady. my education has been by experience and learning from books. i do not mean the single subject thin things that are so common today. i mean textbooks with glossaries, cone charts and other useful information. textbook seems to be a word nobody understands anymore in this world of phones glued to ears and videos of everything from how to hit a nail with a hammer to surgery. if you watch one, you are an expert. without looking at a cone chart, the reader of every word above this would not know that the cone numbers have a meaning that is not clear out of context. the numbers that begin with zero, 022, 08, 06, 04 etc, read UPWARD IN TEMPERATURE. cone 08 being cooler than cone 04. once the chart reaches zero the numbers progress in temperature from cone 1 to a cone so hot that the spacecraft tiles are about the only thing made that hot. now, someone with more knowledge will have something to criticize about this post. go ahead, that is what a discussion is. Oh, yes, there is a book proclaiming to be the "bible" which has a cone chart that is mis-labeled.
  2. best tools for single firing are a stack of towels. good old terrycloth cotton from the dollar store or thrift shops. your hands will go from wet to dry a billion times on glaze day. dry is important. john, i never thought it took more glaze to spray single fire, i save the overspray and use it as a glaze when i have accumulated enough quantity, usually a 2 gallon bucket a year.
  3. that is a sign that you really are normal. most people make hummingbird nests inside bowling balls with flat bottoms for a very long time. if it would not break your bank, you might want to look for an old book by charles counts. he wrote Pottery Workshop in the 1970s and it takes a person from total novice to pretty good thrower in very simple, logical steps. you might adapt the size of the clay ball you start with to fit your own hand if you find it too small. do not skip a step, work from the front to the back and do not look ahead. remember, you are not making a product, you are learning a skill. do not expect perfection. and, get that excess clay out before you raise a wall, then you can lift instead of smooshing, counts shows you how. oh yes, do not even read the glaze recipes. some people say the errors were deliberate to keep the recipe private.
  4. Bailey Electric Slab Roller

    question, clara, is the drive board you have in good shape? if you silicone the bottom of it you might find it works fine. it looks like you have the long folded canvas so you might want to use that. i prefer my printers blankets because of the very fine texture that wipes away with a metal wallpaper smoother. when using this roller, i would prefer it going the other way but, maybe you are left-handed and want to piece to come out on the right of the roller. the two metal stretchers down on the legs will make a great support for heavy shelves. you will be amazed at how much stuff accumulates near a slab roller. handy place for forms, foam rubber, etc.
  5. mea, any video on using the pen? looks like something i would really like to have.
  6. Bailey Electric Slab Roller

    clara, it scares me that you say "sheets of canvas". i want to be clear about this. the drive board has a piece of canvas attached in a very particular way. it is ALWAYS used to cover the things you are sending through the rollers. it needs to be perfectly aligned and perfectly flat. it is too hard to type all this out, see the photos. 1. shows how canvas is nailed to end of drive board. this is the cover cloth. it is never to touch clay. BEFORE NAILING IT, this is what needs to be put into extremely hot water and rolled up tightly to dry so it does not wrinkle. you might be able to see wrinkles on mine in pic 2. i did not do that step, BIG mistake. 2. shows cover cloth folded back and kept out of the way to keep it flat, clean and ready. this is the normal place when not actually making a slab. 3. shows storage of drive board at all times when not rolling a slab. 4. the layers of stuff to be sent through the rollers. the greenish printers blankets are what i use instead of the 8 foot long folded canvas which came with the slab roller. the fold goes into the roller first and is what touches the clay. if you use more than one color clay you would want more than one long piece. my table was 8 feet long so the drive board was 4 feet. your table looks short, maybe you want to add a bit on that side. i put my whole slab roller table on top of a wide heavy table so i have extra space around it since i use it as a work surface.
  7. do i remember a potter who made his wadding and flattened it by rolling like a thickish slab before cutting it into equal squares with that ceiling diffusing plastic grid? yes, i do and he reused some of it.
  8. Bailey Electric Slab Roller

    i have a 24 inch bailey with a drive board. i believe you can do something similar by getting a piece of waterproof MDF and covering the bottom side with silicone rubber caulk. someone who knows what i am talking about can give better instructions. i have no experience with MDF. the canvas piece attached to the drive board is very important. bailey has instructions for replacing the canvas and it will show you exactly what to do with it. MAKE SURE you do the very hot water stretch first! if you do not, you will get wrinkles in the canvas that will not come out. the caulk in long lines lengthwise close together will probably work just fine. if you can arrange a visit to ellen curran in dundee, you might learn a lot. she has one.
  9. Table Top Slab Roller

    joseph, hope you enjoy your slab roller but may i suggest that you find a single long piece of canvas, bailey sells it, or use two printers blankets. they are heavier and will allow you more flexibility in placement. the long canvas gets folded and the fold is fed into the rollers each time it is used. you might even try to make a drive board with canvas attached like the big bailey table styles. check out as many videos showing various slab rollers as they are being used so you can see how they all work. a pm with a phone number might be of benefit. maybe chris is ready to sell her bailey, she hasn't answered yet.
  10. thank you, john for the clear photo showing chunky velvet and the smooth part that tells me it is too thick. excellent photo and great explanation. i use any glaze, never worry about what is in it just the application. so much odd superstitious belief about such a simple thing. it is true that i am self taught and maybe i have just been successful at single firing by accident. someone recently said some of us have been walking on the edge of a cliff and maybe that is me but "try it and see" seems to work.
  11. or, just move to another house with small people rooms and a great studio space!
  12. Help with new (old) wheel please

    what country are you in?
  13. try the search part of this website. this topic has been discussed often. it is not rocket science but there appears to be a LOT of confusion regarding this practice. i do not want to type out lots of info that nobody will read so i recommend using the search method since nobody will look at a book anymore. the internet has many, many errors due to the fact that anyone can enter anything, it ain't all GOOD information.
  14. Zinc in glazes

    i read this question differently, that the worry is to the end user once the piece is finished. does zinc somehow work its way out of the ceramic into the human?
  15. use something sharp and as to when would be best, that will take an experiment on your part. not bone dry, somewhere softer than when the color changes as your clay drys, stiff enough to stand up but soft enough to erase mistakes with a damp tool/sponge.
  16. my last purchase from Highwater clay had to be returned. the clay was so bad that i could not use it. they think it was just wetter than normal and replaced it. the new clay is still bad, not impossible just very, very bad. in 3 hours, i made 2 pieces. normally, in that time i would have filled 5 shelves, using several bags of clay. these two came from a one inch slice from one bag. i will have to constantly watch them as they dry over several days. this is totally NOT normal. i have asked if their suppliers might have changed and ingredient but i have had no response. Jennifer is usually helpful but i have not had an answer to the last 3 emails. i am wondering if anyone else has had a problem. i use little loafers, another potter who has noticed a problem uses a different name clay but has the same problem, not as bad since she throws. please contact me so i can try to find out the solution.
  17. The Starter Wheel

    buy it now if it is still available. used wheels go fast. diameter of the wheelhead is a non problem. the little one you mention is probably the only one at that size, i don[t know. bat pin spread is the only thing you have to worry about and do not worry. they are pretty standard at 10 inches on center. ' '
  18. Pitting and pinholing

    dampening the pot before glazing helped me with that problem when i was dipping glazes.
  19. The Starter Wheel

    i am using a pacifica that i bought in 1972. it is certainly enough for the things i have done, some of which are quite large. it is also very quiet. put it and a brent in the same room and all you can hear is the noisy brent, no radio, no conversation. listen to the you tube demos that are done on brents and you will hear what i mean. the belts on an older pacifica may need replacement. try out the wheel and try to stop the head as it is turning. if you can, the belts need replacing. four large rubber bands, basically. easy to do. but that might be a way of lowering the sale price. if it doesn't, $400 invested there is better than $400 spent on something inadequate.
  20. Highwater clay users

    thank you both, neil and min. i intended to throw something yesterday but it is so cold that i put it off until today, which is going to be even colder. brrrrr. will turn the heat up in the studio and try throwing boxes this morning. empty bowl supper is tonight and i hope to get to the big city this afternoon in time to shop. great thrift shops in winchester. now to figure out what is wrong with my camera talking to my computer. always something.....................
  21. Highwater clay users

    believe it or not, i did that and it took two days to get the stuff even partly workable. this is just not acceptable. the material is not working the way it should. who has room to let slices sit around waiting to use them some time in the future? in the last month i have only made 3 or 4 shelves full of pots. that is normally one partial day. i cannot afford this frustrating delay. it is not just WET.
  22. Highwater clay users

    maybe it would work better if i wedged it ONE BALL AT A TIME onto plaster for half an hour or so but that is so foreign to me, usually a slice out of the bag, a whomp onto the floor and rolling through the slab roller gives me perfect consistency. have not wedged clay for many years, if i had to do that i would definitely retire. this replacement clay was made months after the really bad stuff. so it is not a matter of a single run through the clay making machinery, something is different. it is not just wet, it is sticky.
  23. Highwater clay users

    yes, mea, the humidity is so high that the street outside is still wet and filled with puddles even though the 3 day rain ended this morning. i know what wet clay is like, it can be dried by smacking it onto drywall several times and it will stiffen up. there is no stiffening this stuff. i rolled it onto dry drywall 6 times, turned the heat gun onto its surface for several minutes 3 different times and still barely touched the surface leaving WET fingerprints that stood up when i removed my finger. it ain't normal. i pressed the wood shape into the clay and thick foam rubber and the walls formed and instantly fell down after i took the wood away. not normal. usually, a quick pressing into the foam and the walls stand straight up and stay that way even when moved onto drywall for drying. it is not mere moisture, something is wrong.
  24. Highwater clay users

    not what i want, they already replaced 500 pounds. i NEED the clay to work, last sale on 25th, 26th. i don't care about a temporary fix, what the h is happening so it can be fixed permanently.
  25. Highwater clay users

    i would agree if it were only wet. it is more than that, it is sticking to itself and handles completely differently. it takes overnight to even "dry" enough to handle without distorting. not right.