NX 12.0.2.9 - How can I improve the results of a step/iges file import into NX? 1

[s_hightower]

Hello, Is there a way to improve the results of a step file import into NX? I can import a step file or iges file into NX and the file will be imported, but the part will be made up of hundreds or thousands of bodies. Is it possible to have it so that there's only one body?

I initially just considered this another nuisance, but I later realized that some of these new NX parts were not being included when I exported a step of an assembly that contained those parts. Again, if the export worked, I'd just work around the complicated part file; but it's not usable at this stage.

More info: After seeing that the parts were not usable, I actually imported the same initial step file (and also tried iges) into CREO and it worked - > there was only one feature (not hundreds or literally thousands) for the complete/whole part. While in CREO, I did a step export of the part. I then imported that CREO made step file into NX and that new complete part only had one feature. I did a step export of that CREO made part and assembly and noticed that the new part was included in the export. (I brought the new step file of the assembly into NX and the new part was there.)

I thought this would be a reasonable work around by using CREO to generate the new step file, but then I tried to do a more complex part. As with the simpler part, CREO was able to import the more complex part into CREO and there was only one feature for the complete/whole part. After seeing that there was only one feature and that the import worked, I then exported the step file from CREO. Unfortunately, after importing that new step file into NX, there were 9,383 bodies. For comparison, I imported (again) the initial file that I had brought into CREO (with one resulting feature) and noticed that there 3,038 resulting bodies in NX.

Any idea why and more important - how to simplify the model so that it's usable? I'm ultimately hoping that I'm just missing a setting change or workaround so that I can quickly use the part. Any help would be appreciated. Thanks

 

[Rob_N]

there are a lot of ways to import step into NX.
If your using File-> Import you need to pull down the options tab and check Sew.
If your step file is an assembly and you don't want it to be, check flatten and it'll bring it into a single file.
If you drag and drop you'll need to edit your step203ug.def and step214ug.def files

If your using File-> Open and filter for Step, click the Options button in lower left corner to access the settings