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About C.Banks

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    : Canada
  • Interests
    well made pots, melting stuff

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  1. C.Banks

    Hudson River Clay

    GIMP is a nice program but it's kinda' confusing.
  2. C.Banks

    Hudson River Clay

    local clay 80 whiting 15 cobalt 2 rutile 4 This was another happy glaze. It worked first try. I'd post a picture but I forget how i was resizing my photos. It fired to a not quite shiny, speckled black/gold. The cobalt showed a lot of character through a translucent titanium white. I look at it now and think that 2% cobalt looks like a lot. Cobalt was a bit cheaper back then.
  3. C.Banks

    Hudson River Clay

    local clay 43.48 silica 17.39 bone ash 8.70 spodumene 8.70 gerstley borate 8.70 black iron oxide 8.70 kona F-4 soda feldspar 4.35 The clay body is a buff stoneware - plainsman 450 iirc. The local clay we were digging resembled albany/alberta. The original totaled 115. This was a very nice glaze in oxidation and liked a warm 9. When it was working well it showed red/orange with very little brown. It broke to black and behaved very well. I sort of gave up on it for a bit but one day found some tidbit of inspiriation. I left it alone after that. I forget why the f4 is there - I left it in for luck.
  4. C.Banks

    Hudson River Clay

    Try refiring your tests with lithium to an 06 bisque or there-abouts. You might be pleasantly surprised. ;)
  5. C.Banks

    Custer Feldspan vs Soda Feldspar

    In many cases soda and potash feldspar are interchangeable in glaze recipes. happy accidents are fun - and frustrating :)
  6. '[OM4 Ball Clay] ... as some soluble salts which can give a brown coloration to the surface, so barium carbonate may be needed to precipitate these.' I'm curious about this statement. My wee bit of chemistry knowledge imagines some sort of barium/salt crystals precipitating out of some sort of slurry solution? Is there an alternative the barium? Will strontium work? Why would this 'precipitation be needed'? I understand somewhat how soluble salts work in shinos but what affect will 20% OM4 have in a clay body? Greenware will discolour? Will the clay store well? Is there a substitute for OM4 that does not have solubles? Looking at the Periodic Table of Elements it's interesting to note that barium, other than gold, is the heaviest element that still might be in use today. From up here the rabbit hole looks quite deep and inviting, like a clown, with a balloon. <.< >.> :)
  7. C.Banks

    glazing in red and black

    This effect reminds me of layered clays.
  8. C.Banks

    Feldspar FFF?

    John Sankey has some detailed iron red information you might be able to use: Iron Glazes
  9. C.Banks

    How To Improve?

    I've been frustrated more than I care to admit. People have asked me if I throw. I have to admit - oh yes, I've thrown clay. I'm unable to add much more than is already offered here. I've had to adopt some unorthodox methods that work for me. The biggest thing that moved me to a place approaching confidence was accepting a small wobble and just geting on with the process. I got out of my own way and 'we' came to a compromise. The other big thing was wheel speed. I was always taught to center clay as fast as the wheel would go. One winter I had the opportunity to work on an old Estrin. The flywheel encouraged me to work with a rythmic wheel speed. Now I rarely use a wheel a full speed and if I'm struggling chances are my wheel is turning too quickly. cheers
  10. C.Banks

    The Act of Pugging

    I remember an old wringer-washer used as a blunger and a great old plaster bat - both were always covered in clay. There is very little clay I don't recycle. I'm no production potter but I do ok with where I'm at and reclaiming clay is just part of the process. When I'm working in the studio the cool hours of the morning are good for getting clay ready. I still have that plaster bat. The costs of clay is certainly a relative thing. If I remember right the boxes I have stored cost near 50 bucks Canadian shipping included. Ordering more would mean shipping it north over 2000 km's and then 'running' into town and back which takes a good 8 hours on the road alone. I'm ok if I make that trip as little as possible. One day maybe I'll afford a pugger but for now my wrists keep up well enough. I know this doesn't add much but this all got me thinking about that old wringer-washer and the sound it made and of course the smell - but this only means good things.
  11. ...indeed... The conclusion seems to be missing but the preface takes me back a few years. A introductory level ambivalence in art might be necessary here. *I see in the url the first 30 pages is just a sample - 30/161 to be specific.
  12. I'm curious how to define a masculine/feminine/neutral form. If the Golden Mean is universal does this make it neutral? This one of the more broad questions I've heard in a while.
  13. C.Banks

    Glaze or clay effect?!

    Mike Dodd demonstrates throwing and modifying a pot for a somewhat similar approach and effect
  14. C.Banks

    Food safety in glazes

    A search of the site unfortunately does not easily bring up this Clay and Glaze faq.

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