# Casting metal yield
# Scope: Mass yield and melt requirement including runners/risers in supplied yield.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

netMass = 1 kg
yieldFraction = 0.65

pourMass := netMass/yieldFraction [kg]
scrap := pourMass-netMass [kg]

check pour mass budget: pourMass <= 2 kg

scenario alternative: netMass = 0.8 kg