# Worst-case tolerance stack
# Scope: Worst-case sum of three symmetric independent dimensional bounds.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

nominalA = 20 mm
nominalB = 30 mm
boundA = 0.1 mm
boundB = 0.2 mm

nominal := nominalA+nominalB [mm]
bound := boundA+boundB [mm]
maximum := nominal+bound [mm]

check maximum envelope: maximum <= 51 mm

scenario alternative: nominalA = 16 mm