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export facet data

Solution Partner Legend Solution Partner Legend
Solution Partner Legend

I have a STL file.

I open it to NX and sucessfully got the facet data.

I am done filling the Holes of the facet data.

Now when I export it to IGS or STEP file. The facet data is always missing.

The exported data was always blank.

 

How to export FACET BODIES to IGS or STEP?

Thanks in advance.

 

Regards,

~Sen

12 REPLIES

Re: export facet data

Hey Johnsen,

 

Morning,

Actually STL is STereoLithography file contains mathematical geometry information, so normal CAD software can not convert it to a solid geometry or surface one.

I tried in NX9, NX10, SolidWorks, SolidEdge, CATIA but didn't work.

It is used mainly in 3D printing & Rapid Prototyping. I have been using Wanhao Duplicator since 2014

For more details you can visit : STL file formate

That might help you further.

Summer Regards,
Rinkesh Patel
www.rinkeshpatel.com

Re: export facet data

Solution Partner Legend Solution Partner Legend
Solution Partner Legend
Hi Rinkesh Patel,

Yes I understand this.
I just want the facet body to be exported to IGES or STEP file.
No need to convert it to solid or sheet body.
Just export the facet body as is.
But once I tried exporting. The facet body will disappear.

BTW. Thanks for the reply

Regards,
~Sen

Re: export facet data

Obviously, that will disappear, because it contains mathematical data. :/

Summer Regards,
Rinkesh Patel
www.rinkeshpatel.com

Re: export facet data

Solution Partner Legend Solution Partner Legend
Solution Partner Legend
Yes. that is why I'm wondering of there is a way Smiley Sad
It is hard for me to accept the truth :'(

Re: export facet data

In past, when I just started using 3D printer, I faced that problem,

We can get lots of STL design online, but If we want to change or modify the entire design, we couldn't.

Rest we have to do is design your own. Smiley Sad

Summer Regards,
Rinkesh Patel
www.rinkeshpatel.com

Re: export facet data

Solution Partner Legend Solution Partner Legend
Solution Partner Legend
Ok I will start now Rapid Surfacing Smiley Happy
Looks like I have no choice.

Thanks BTW.

Regards,
~Sen

Re: export facet data

You better,,

Welcome bro.. Smiley Happy

Summer Regards,
Rinkesh Patel
www.rinkeshpatel.com

Re: export facet data

Gears Esteemed Contributor Gears Esteemed Contributor
Gears Esteemed Contributor

STL data is faceted data (thousands of small triangular faces).

IGES and STEP (to my knowledge) only support Bsurfaces and planes/cylinders/cones/etc.

While both mathematical data, they are not compatible (although in theory you could export each facet as a small planar face, apparently no one does this)

So either re-export the faceted model as STL, or use (whatever program) to fit surface data over the facets.

 

Ken

 

Ken Akerboom Sr CAx Systems Engr, Moog, Inc.
Production: NX10.0.3.5 MP16/TC11.2
I'd rather be e-steamed than e-diseaseled


Re: export facet data

Siemens Honored Contributor Siemens Honored Contributor
Siemens Honored Contributor
Depending on how complicated the data is, you can try using the Rough Offset command. NX9 provided an additional Rough Offset 'Filter' type: "Facet Body", and with a zero offset you can replicate the faceted geometry to create Parasolid geometry. Rapid Surfacing is great for complicated, scanned geometry, but it takes a long time as you have to slice and dice the faces to build up a network of curves.
In NX10, you could also look at Face Curvature Analysis, Detect Primitives, Paint Facet Body and Fit Surface, which when combined will allow to you fit surfaces to facet bodies. Once you have your surfaces you can use trim/extend, among other commands, to rebuild the part. This was demonstrated at PLM Connections 2015, you can access the pdf slide presentation here: www.plmworld.org/p/do/sd/sid=6543.
NX11 will provide a new command "Convert Facet Body", which will convert your faceted body to an NX, Convergent or JT body. When converted to a convergent facet body it can be used with boolean commands with non-facet bodies.

Regards, Ben