# Molding shot size
# Scope: Shot mass from cavity and runner volumes at supplied melt density.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

partVolume = 20 cm^3
cavities = 4
runner = 10 cm^3
density = 1 g/cm^3

volume := partVolume*cavities+runner [cm^3]
mass := volume*density [g]

check shot mass budget: mass <= 120 g

scenario alternative: partVolume = 16 cm^3