Neither hair nor there

monster · 01-15-2012, 03:15 PM

I thought that, clod, but then if the hair contracted as it got colder, the follicles would expand. Think about a hole in the metal ball. Or at least in a metal plate. This principle is used a lot in ceramics -you need to make items -e.g. light switch plates- larger than you want them, but the holes should be smaller, because the clay contracts as it dries and pulls away from the edges -including the edges of all holes.

01-15-2012, 03:15 PM	#6
monster I hear them call the tide Join Date: Dec 2005 Location: Perpetual Chaos Posts: 30,852	I thought that, clod, but then if the hair contracted as it got colder, the follicles would expand. Think about a hole in the metal ball. Or at least in a metal plate. This principle is used a lot in ceramics -you need to make items -e.g. light switch plates- larger than you want them, but the holes should be smaller, because the clay contracts as it dries and pulls away from the edges -including the edges of all holes. __________________ The most difficult thing is the decision to act, the rest is merely tenacity Amelia Earhart

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