# Bevel-gear geometry
# Scope: Right-angle ideal bevel pair; pitch cone angles only.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

pinion = 20
gear = 40
module = 2 mm

pinionCone := atan(pinion/gear) [deg]
gearCone := 90 deg-pinionCone [deg]
coneDistance := module*sqrt(pinion^2+gear^2)/2 [mm]

check cone distance budget: coneDistance <= 50 mm

scenario alternative: pinion = 16


# Diagram dimensions are illustrative; teeth are schematic, not manufacturing profiles.
check whole pinion: abs(pinion-round(pinion)) <= 0
check positive pinion: pinion >= 3
check whole gear: abs(gear-round(gear)) <= 0
check positive gear: gear >= 3