This is a post by Mike Gayette on PTC site.
Nobody wants to sweat under the spotlight and explain why an inaccurate helical sweep caused downstream production problems. It wasn’t entirely your fault. You had to rely on 2D approximations because accurate 3D modeling wasn’t available.
No more. With the Volume Helical Sweep tool in Creo, you can more accurately model geometry and the cutting tools that will interact with it.