# Robot arm reach
# Scope: Two-link radial reach envelope; no joint limits or collision model.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

linkA = 200 mm
linkB = 150 mm
target = 250 mm

maximum := linkA+linkB [mm]
minimum := abs(linkA-linkB) [mm]

check target reachable: target >= minimum
check target upper reach: target <= maximum

scenario alternative: linkA = 160 mm