topic Re: Importing igs in Inventor Forum

Importing igs

brendamat — Fri, 11 Mar 2022 16:12:54 GMT

Hey,

I want to use an .igs file but I an not able to see as an object that is possible to select so that I can work with that surface. I just have a few options when opening the file: Stitch, component and individual in part options. I need to make a mirror to this part and continue to build more surface on this already modelled part.

Re: Importing igs

Gabriel_Watson — Fri, 11 Mar 2022 16:55:34 GMT

Under Part Options, select "Composite", then right-click on the solids/composites and pick "repair bodies" to open the repair environment tools, then pick "Unstitch" and select all or some objects/surfaces, then proceed to edit your surfaces imported... until you finish and select "Stitch" back again to bring it into one solid.

Re: Importing igs

johnsonshiue — Fri, 11 Mar 2022 21:34:08 GMT

Hi! The mirror cannot be done during import. It has to be done after import. I am not sure I understand the difficulty. If possible, please share the example here. I would like to understand the issue better.

Many thanks!

Re: Importing igs

brendamat — Mon, 14 Mar 2022 10:03:53 GMT

Hey!

It did work 🙂 Thanks for your help!

Re: Importing igs

brendamat — Wed, 16 Mar 2022 13:53:56 GMT

now the problem is that I cannot give thickness to the now mirrored surface...

Re: Importing igs

johnsonshiue — Wed, 16 Mar 2022 19:48:07 GMT

Hi! You mean thickening the mirrored surface? Does Thicken work on the original surface? If not, the thicken will likely fail on the mirrored side. Try tightening up the stitch tolerance to 0.00001mm.

Please share the files here or send them to me directly johnson.shiue@autodesk.com. I can help take a look to see what other options we may have.

Many thanks!

Re: Importing igs

brendamat — Thu, 17 Mar 2022 12:52:25 GMT

Hei,

I send you an email with an example of what I mean 🙂 Thanks for your help.

Re: Importing igs

johnsonshiue — Fri, 18 Mar 2022 01:27:52 GMT

Hi Brenda,

Many thanks for sharing the file with me! Without disclosing the detail of the file, let me describe it in this way. The boat hull consists of 120+ individual surfaces. There are gaps between them. The gap size exceeds the tolerance allowed to create a meaningful stitched surface in Inventor unfortunately. Even if the quilt is created and mirrored, likely the Thicken will fail.

Inventor has very limited workflows to handle such geometry. I suggest you may look into the original CAD file and see if you can simplify the geometry in the native environment.

Thanks again!