Empty STEP file when exporting a multi body part / assembly

Forum|Forum|1 year ago
March 25, 2025
2 replies
1243 views

I am using Creo Parametric Release 7.0 and Datecode7.0.2.0

I created skeleton with multiple solid bodies and then created part from the bodies to build an assembly from these parts. In Creo everything is fine but problem occurs when I try to export an assembly to a STEP file. STEP file is generated but does not contain any geometry when imported. This is relevant only for assembly or parts created from skeleton bodies. Skeleton as a part is exported but does not contain all the futures because some futures are created in the parts. The first feature in parts crated from skeleton bodies is Extern Copy Geom with automatic update. I have tries use different export protocols but results is the same. Bodies is not set as construction bodies.

Here are the errors that I faced
Warning message upon opening STEP file: "Could not construct feature geometry"

Best answer by tbraxton

Warning message upon opening STEP file: "Could not construct feature geometry"

The above message does not confirm that there is no geometry defined in the STEP file. Have you opened the STEP file in a text editor to see if it lacks geometry definitions? If the STEP file has geometry defined in it, then this could indicate that Creo is not able to interpret it to create geometry when you are importing it. Exporting from Creo does not guarantee that it will come back into Creo without errors.

More information would be useful to determine the issue. Provide some more context on exactly what you have done or post the models for review. If you are unable to post models, then upload some pictures of the models and the model tree that are relevant to the issue.

tbraxton

Answer

22-Sapphire II

Warning message upon opening STEP file: "Could not construct feature geometry"

The above message does not confirm that there is no geometry defined in the STEP file. Have you opened the STEP file in a text editor to see if it lacks geometry definitions? If the STEP file has geometry defined in it, then this could indicate that Creo is not able to interpret it to create geometry when you are importing it. Exporting from Creo does not guarantee that it will come back into Creo without errors.

More information would be useful to determine the issue. Provide some more context on exactly what you have done or post the models for review. If you are unable to post models, then upload some pictures of the models and the model tree that are relevant to the issue.