polyNURBS model stansfer to stp or stl file failure

Hi there,

I have met a problem with Inspire concerning polyNURBS modelling and transfer the model to stp and stl file. After using the optimization function I use the polyNURBS function in Inspire to build up the model. Then I tried to transfer the model to stl file for 3D printing, but the model was damaged when I open it in 3D printing software. I also try to transfer it to stp file to try to open it in solidworks, but I found the polyNURBS solid change to surface from solid part during the file transfer from stmod format to stp format, and damages can be found on the polyNURBS surface after the transfer. I have try many times but always get the same problem. I wonder what was the reason of this and how to fix it. I have attached the relative files.

Thank you

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Rahul Rajan_21763

Thanks for sharing files.I able to open .stl shared files in Inspire and SimLab. Would be nice if you can share, screenshot of the error which you are getting in 3d printing software.Even you can check with 3d printing software for import issues.

Altair Forum User

Hi Rahul,

Thank you for the reply. Below are the screenshots of the error I've met.

The 1st picture is the image of the 3D printing software I used( Its name is UP. ), and that's how it shows when I open the stl file in it.

<?xml version="1.0" encoding="UTF-8"?>

The second screenshot was the situation when I open the stl file in solidworks and clicked 3D print in menu.<?xml version="1.0" encoding="UTF-8"?>

The 3rd screenshot was the situation when I want to transfer the model to stl format in SolidWorks from prt format.<?xml version="1.0" encoding="UTF-8"?>

Could you please give me some suggestions, or if you can successfully process the 3D printing, could you tell me how you did it.

Many thanks!

Rahul Rajan_21763

For time being i suggest you to export or save Stl file for Polynurb created design & import in UP/Solidworks. Leave all four corner and mid part.This will help to know the problem is with Polynurb part or not?I also see overlapping of solid in some region. PFB screenshot for same.

<?xml version="1.0" encoding="UTF-8"?>

Altair Forum User

Hi Rahul,

Thank you for the advice. I deleted the four corners and mid part with only Polynurb part left and the 3D printing worked this time. So the problem might be due to the overlapping of solid in some region.

Regards,

Jiaming