# Vacuum suction-cup sizing
# Scope: Static suction area at supplied pressure difference; leakage and dynamics omitted.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

diameter = 40 mm
difference = 50 kPa
factor = 2

grossForce := difference*pi*diameter^2/4 [N]
workingForce := grossForce/factor [N]

check holding target: workingForce >= 20 N

scenario alternative: diameter = 32 mm