capacity
clay volume
base / widest radius
Solid geometry: 64-sided rotational mesh. Capacity and clay volume are geometric estimates; no firing shrinkage. Base ratio is a design rule, not a tipping simulation.
Draw the profile
Drag a coral station sideways, or use its radius slider. The blue edge is the inside wall.
A form is a set of tradeoffs.
A wider belly holds more. A thicker wall uses more clay and leaves less room inside. A broad foot gives a larger base ratio. Change one thing, inspect the cutaway, and compare the numbers.