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warping, thanks david f.

updated wed 4 may 11

 

mel jacobson on tue 3 may 11


it is well known among those that make lots
of sets...you cannot get thin at or near the
foot ring. a perfect taper from rim to foot ring,
and even thickness from foot ring to center
is important.

often overlooked, as you cannot see it very well.

the quarter inch rule is good to follow with
plates and platters...strong rim...quarter inch
just past the rim, then move to a bit larger
as you near the foot ring.
keep a perfect quarter inch to the center of
the plate.

it always the same...it is that thin spot that will
get you. they come out of the kiln looking like
hub caps.

i tend to make plates and platters for sets just
a bit on the beefy side. let them smack around
in the dishwasher...take a jolt.
they last forever. the customer will thank you
in ten years.

my apprentice took out 5 hub caps from the last
firing. part of an `already` sold set. she re/made
them, and we fired today.
they will be fine. she learned a perfect lesson.
just because they are in a set, it does not mean
you shave for lightness.
mel
from: minnetonka, mn
website: http://www.visi.com/~melpots/
clayart link: http://www.visi.com/~melpots/clayart.html
new book: http://www.21stcenturykilns.com
alternate: melpots7575@gmail.com