Modeling Help: Protrusion normal to a non‑planar complex internal cylindrical surface.

[JM_14488784]

I am using Creo Parametric Release 10.0 and Datecode10.0.1.0

Guidance on the workflow to Create a protrusion that stays normal to a complex internal surface.

[kdirth]

You can place a point on the surface then create an axis referencing the point and the surface.  The axis will be normal to the surface at the point.

[tbraxton]

See the solution post in this previous thread it deals with the general problem of holes normal to a surface. A reference model is included which provides an example of how to do this.

https://community.ptc.com/t5/3D-Part-Assembly-Design/Pattern-to-twist-with-a-geometry/m-p/969470#M136234