Logan Oplinger on wed 11 apr 01
Yes, for some clay bodies, wedging direction can influence the formation of s-cracks. I have spiral-wedged both right and left handed, then thrown ONLY counter clock wise, and get s-cracks both right and left handed. I surmise that when the wedged cone is placed on the wheel in an upright position and centered, the plastic deformation of the clay nearest the wheel head surface is least, and retains the spiral stresses induced into the clay during wedging.
Flattening a small ball of clay onto the wheel head before placing the wedged cone on the wheel, or turning the cone on its side and patting it into a ball before putting it on the wheel were/are the best remedies, I think.
Logan Oplinger
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artimater on wed 11 apr 01
Logan wrote:=20
Flattening a small ball of clay onto the wheel head before placing the =
wedged cone on the wheel, or turning the cone on its side and patting it =
into a ball before putting it on the wheel were/are the best remedies, I =
think.
Brilliant!!!!...Logical....It has to work....I wonder that this isn't =
common knowledge....Someone must have been holding out on me....Any more =
secrets out there????.....Of course one must not forget to hold ones =
mouth right while wedging and throwing
Rush
"I only indulge when I've seen a snake, so I keep a supply of =
indulgences and snakes handy"
http://www.geocities.com/artimator/index.html
artimator@earthlink.net
Lee Burningham on wed 11 apr 01
Howdy,
Not only do you have to hold your mouth just right, you also have to hop on
only the left foot while wedging, recite the clayart mantra(list of members)
backwards, AND hold your breath throughout the entire process. Anything less
guarantees absolute failure and dis-satisfaction with the entire process.
;-)
Can't say I've ever seen any difference at all.
Lee Burningham
Chris Clarke on thu 12 apr 01
.....Of course one must not forget to hold ones mouth right while
wedging and throwing>
and that would be with tongue out, rightside, securely held between the
teeth
chris@ccpots.com
www.ccpots.com
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