Hello, I am not aware of an possibility to save NX10 part directly to NX9.
What was always the way to get 3D Model to lover version of UG/NX, is to export the Paraolid file to the appropriate version (NX9 is the Parasolid 26.0) and then open this file in the desired NX version. You get the non-associative 3D geometry.
If I using Parasolid , My design is not history in Modeling and Drawing 2D.
I want to file *.prt of Nx10 in Nx9
Thanks you very much. sorry beacse my english is not good
You will have to use a "neutral" format (parasolid, STEP, IGES, etc) to transfer the geometry to a lower version of NX. You will lose the part history, but with the current set of "synchronous modeling" tools, this isn't as bad a situation as it used to be...
I'm not aware of any way which makes possible to conserve part history while saving from higher version to lower in NX.
Synchronous modelling tools are your best options to convert the surfaces into parametric model. You should really give it a try as most common features can be made parametric using these tools, unless you have a very complex surface model, in which case the original history usually isn't much help in modifying the part either way.
As the others have said before: Unfortunatly, no it's not possible to Save a NX 10.0 part, so you can open it in NX 9.0, with all the parameters/part history, so you can edit it in NX 9.0.
The best option in NX 10.0 is to go for:
File --> Export --> Parasolid --> Select the solid body --> Version: 26.0 - NX 9.0 --> OK
In NX 9.0:
File --> New --> Select a model template
File --> Import --> Parasolid --> Select the exported parasolid.
Now in here you can use the Synchronous tools and the normal NX features to edit the existing part in NX 9.0.
I hope this helps.