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Method to reorient coordinate system for STEP export?

Method to reorient coordinate system for STEP export?

Method to reorient coordinate system for STEP export?

(OP)
Hello,

The problem is simple, when an NX model is exported to a STEP file and opened in Creo, the orientation of the model is weird. That's because in NX, Z is the up axis, whereas in Creo, Y is the up axis. I'm trying to find a solution where opening a STEP file made in NX will orient itself the proper way in Creo.

Here's a method I'm thinking about implementing. I've discovered that if you open the STEP file in notepad, find all occurrences of for example:

#91=DIRECTION('',(0.,1.,0.));
#114=CARTESIAN_POINT('',(0.,0.,-111.));

and replace the Y with the Z, and replace the Z with the negative of Y, then save the file, it will open in Creo oriented the proper way.

But before I create a program to do this, and since this is probably a common issue, does anyone know how they would normally solve this problem?

NX9 Win8.1 64bit i7-3770K 16GB Quadro2000

RE: Method to reorient coordinate system for STEP export?

Could you wave link the target part into another NX part, changing the orientation to suit Creo, then export to STEP?

Mike Hyde
www.astonmartin.com
NX8.5 with TC9.1

RE: Method to reorient coordinate system for STEP export?

MikeHyde
it appears as a bad idea. Coordinate systems are still different.
IHO files converted to ProE, from UG, should not matter that rotation because once in ProE it is handed to low-paid draft-person not an Engineer. I just do not see why a draft-person should care for the model orientation.

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