# 3D-print cost estimate
# Scope: Material plus machine time cost; currency represented as dimensionless account units.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

mass = 100 g
pricePerKg = 25 kg^-1
duration = 2 h
hourlyRate = 3 h^-1

materialCost := mass*pricePerKg
machineCost := duration*hourlyRate
cost := materialCost+machineCost

check cost budget in account units: cost <= 10

scenario alternative: mass = 80 g