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Helical gear in Creo Parametric

Let's design the helical gear in Creo Parametric Parameter consideration: no_of_teeth = 20 /*any teeth value normal_module = 3 /*any teeth value normal_pressure_angle = 14.5° & 20° /*Standard value width = 20 helix_angle = 26 /*normal_pressure_angle = αn /* transverse_pressure_angle = αt /*helix_angle = β Relations for helical gear: transverse_module = normal_module / cos (helix_angle) pitch_dia = transverse_module*no_of_teeth normal_circular_pitch = pi * normal_module transverse_circular_pitch = pi * transverse_module transverse_pressure_angle = atan((tan (normal_pressure_angle))/(cos(helix_angle))) addendum = normal_module dedendum = 1.25*normal_module outer_dia = pitch_dia+(2* addendum) root_dia = pitch_dia - (2 * dedendum) base_dia = pitch_dia*cos(transverse_pressure_angle) normal_teeth_thickness = normal_circular_pitch / 2 transverse_teeth_thickness = transverse_circular_pitch / 2 lead = pi * pitch_dia / tan (Helix_angle) root_fillet = 0.38*transverse_module semitopping = 0.1*transverse_module Involute equation: theta = t*90 base_radius = base_dia/2 cir_len = (pi * base_radius * t ) / 2 X_PNT = base_radius * cos(theta) Y_PNT = base_radius * sin(theta) x = X_PNT + ( cir_len * sin(theta) ) y = Y_PNT - ( cir_len * cos(theta)) z = 0