topic STP file import error in Inventor Forum

STP file import error

anthonyzepeda1969 — Fri, 29 Jul 2022 16:28:21 GMT

Importing a .stp file, it previews fine during the LOAD step.

But once I hit apply, it imports as surface bodies and they are transpartent.

See screenshots

Re: STP file import error

CCarreiras — Fri, 29 Jul 2022 16:35:20 GMT

Hi!

After you import them to inventor, Now you can turn these surfaces into solids.

Use STITCH tool, select all the surfaces, and if they are all closed, it became a solid.

Re: STP file import error

anthonyzepeda1969 — Fri, 29 Jul 2022 16:41:49 GMT

So whoever created the .stp file did not close all the suraces then?

ok I'll have to put some work into then.

Is there a way to make these surfaces not transparent? I have it shaded but it's still transparent.

Re: STP file import error

CCarreiras — Fri, 29 Jul 2022 16:49:21 GMT

@anthonyzepeda1969 wrote:
So whoever created the .stp file did not close all the suraces then?

Depends on the software they created the step and sometimes, how, or the export options they used.

@anthonyzepeda1969 wrote:

Is there a way to make these surfaces not transparent? I have it shaded but it's still transparent.

You can try to set surfaces as Opaque, it should work..... but.... if all surfaces are ok... stich will solve that in a few seconds..

Re: STP file import error

anthonyzepeda1969 — Fri, 29 Jul 2022 16:51:52 GMT

Tried the heal and stich option. Did nothing.

I'll spend more time on it.

Thanks.

Re: STP file import error

johnsonshiue — Sat, 30 Jul 2022 02:08:50 GMT

Hi! If possible, please share the file here or with me directly johnson.shiue@autodesk.com. I can take a look and see if there is a better workflow to create a solid body.

Many thanks!

Re: STP file import error

anthonyzepeda1969 — Mon, 01 Aug 2022 13:23:06 GMT

That would be awesome. I will share to you directly as this is a vendor supplied part and is propriatary information. Don't think they would like putting it out on a forum. lol

Thank You sir

Re: STP file import error

johnsonshiue — Mon, 01 Aug 2022 23:06:34 GMT

Hi! Anthony shared the file with me. Without disclosing the detail, here are some findings. It seems that either exporting CAD system had trouble exporting certain circular faces or the designer deliberately removed some circular faces. It was done in a way to avoid forming a watertight volume.

To make it watertight, it can be tedious. The missing faces need to be found first. And then, use Boundary Patch or Loft or other surface commands to fill in the gaps. There isn’t a shortcut to do that unfortunately.

Many thanks!