CHUCK - Supports for working on the footing.
ca: FORMA – Suports per polir un peça.
es: HORMA – Soportes para pulir una pieza.
Chuck is clay made into a shape to hold a pot or bowl in place when upside down on a wheel, so as to be able to finish off the back and footing. The clay of the chuck should be cheese-hard, dry enough not to change its shape when working with it or it can be fired for continual use. Rubber chucks can be bought and come with their own wheel head.
Read more about: Foot (a) Pottery; plates, jars and bowls / Foot (d) Classic throwing