WF2 is easy for modeling Helical gears. The involute profile is:
todeg=180/pi
r=.5*Db*sqrt(1+alpha^2)
alpha=t*sqrt((Da/Db)^2-1)
theta=alpha*todeg-atan(alpha)
z=0
Mirror this involute profile about a plane that is created by a datam point where the pitch circle intersects the involute profile and thru the A1 axis or center of the gear.
The problem I'm having is that I have ProE 2001 and when I use Var. Sur. Sect., I can't make the sweep section remain perpendicular to the front of the gear. The section follows the helical sweep traj whichis not perpendicular to the front. In WF2 this problem is solved by chaining the helical sweep traj. and the normal traj. In ProE 2001 this chaining process is areal problem.
todeg=180/pi
r=.5*Db*sqrt(1+alpha^2)
alpha=t*sqrt((Da/Db)^2-1)
theta=alpha*todeg-atan(alpha)
z=0
Mirror this involute profile about a plane that is created by a datam point where the pitch circle intersects the involute profile and thru the A1 axis or center of the gear.
The problem I'm having is that I have ProE 2001 and when I use Var. Sur. Sect., I can't make the sweep section remain perpendicular to the front of the gear. The section follows the helical sweep traj whichis not perpendicular to the front. In WF2 this problem is solved by chaining the helical sweep traj. and the normal traj. In ProE 2001 this chaining process is areal problem.