# Mold and casting shrink allowance
# Scope: Isotropic linear tool compensation from supplied measured mold shrinkage.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

partSize = 100 mm
fraction = 0.015

toolSize := partSize/(1-fraction) [mm]
allowance := toolSize-partSize [mm]

check tool envelope: toolSize <= 103 mm

scenario alternative: partSize = 80 mm