When preparing, I sketch the pattern I want to make. And, I think how to incarnate the design.
Calculate how much clay and colors I use. The quantity of clay depends on how many vessels I want to make.
For colors, usually I use 5% colored clay. Then if I want 100 g colored clay I need 5 g color powder.
I use a precision balance for this step.
Clay for Nerikomi should be softer than usual (with electric wheel or handbuild).
So I have to make it into little pieces and use not less water to condition it.
Color conditioned clay step. Usually I use colored clay called “color base” that contain 50% color powder.
It makes it easier to mix color powder quickly.
Make a pattern log
Make a pattern log depending on the plan.
When you slice the log, you’ll see the pattern similar to wood grain.
Some kinds of porcelain clay lets through the lights. I often make translucent dishes with them.