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February 3, 2026
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Modeling Help: Protrusion normal to a non‑planar complex internal cylindrical surface.

  • February 3, 2026
  • 2 replies
  • 190 views
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.
    Best answer by 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 

    2 replies

    kdirth
    21-Topaz I
    kdirth21-Topaz I
    21-Topaz I
    February 3, 2026

    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.

    There is always more to learn.
      T
      22-Sapphire II
      tbraxton22-Sapphire IIAnswer
      22-Sapphire II
      February 4, 2026

      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 

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