How to pull the helical thread sweep smooth out of shank

See if this one helps:

https://community.ptc.com/t5/3D-Part-Assembly-Design/Tapering-off-a-helical-sweep/m-p/900957

A separate feature is not the only solution but in most cases is the easiest to implement. The thread referenced by @StephenW has some options that work. There is another approach not documented there but is easily understood and modeled.

Another option is to use a revolved feature to generate a lead in on the thread. Here is one example of how this works on a female thread. The proximal and distal ends of the helical sweep are used to create the transition to the bore wall.

You can revolve the thread profile such that it will generate a blended geometry. Multi body Boolean operations are very useful for combining these features with the geometry of the part.

Hi @Yogesh.T

I wanted to see if you got the help you needed.

If so, please mark the appropriate reply as the Accepted Solution or please feel free to detail in a reply what has helped you and mark it as the Accepted Solution. It will help other members who may have the same question.

Of course, if you have more to share on your issue, please pursue the conversation.

Thanks,