Helical gear in Creo Parametric | Shorts | cadx

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

Видео Helical gear in Creo Parametric | Shorts | cadx канала CADx