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Jan_Venema8-Gravel
8-Gravel
Jul 4, 2025 12:16 PM UTC
Question

Pattern a hole on a cone surface normal to the surface

Is it possible to pattern a hole on a surface that is cone shaped, the direction of the holes must be normal to the surface. In solidworks this was very easy using a 3D sketch

6 replies

tbraxton
tbraxton22-Sapphire II
22-Sapphire II
Jul 4, 2025 2:07 PM UTC

Yes, it is possible. 

Generally, you would create a group of features.

1) Point on cone surface

2) Axis through point, normal to cone surface

3) Coaxial hole

 

Consider using a reference pattern to save on regeneration overhead where possible.

 

Refer to this thread for examples of holes normal to surface that are patterned. Take a look at the part models and links posted. Your problem is a subset of what is discussed here but it will provide insight into what is possible in Creo and how to create the features.

Solved: Reduce to practice a variable axial pattern - PTC Community

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Jan_Venema8-GravelAuthor
8-Gravel
Jul 4, 2025 2:15 PM UTC

the surface is not an actual cone but if i try the geometry pattern the axis are paralell, the refference pantern stays greyd out

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tbraxton
tbraxton22-Sapphire II
22-Sapphire II
Jul 4, 2025 2:21 PM UTC

The general method I posted above should work regardless of the topology of the surface (assuming Creo can determine a surface normal of the surface). Without more detail on exactly what you are working with it is hard to make suggestions. Post a picture or ideally a simplified test case model. I can only work with up to Creo 9 at the moment.

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