Surface Export to DXF Problem with Quality

[florian_wenzel]

Hi,

Inventor 2022

I have Problem with Surface Export to DXF.

Some Holes are gone!

Thanks for Any Suggestion

[Gabriel_Watson · Accepted solution]

I think the quality of your geometry is what's causing the bug.

I played it safer. I'm used to exporting DXF from sheet metal flats, so, first I thickened by 1mm (both ways) your surface, copied it (using copy object) into a new repaired surface and stitched it to make it solid for sure (got rid of the old "faulty" surface), then finally made a flat pattern out of it and exported. See attached.

EDIT: your original imported surface was a mesh, that is why it is crappy to do any work with it (meshes should be converted to regular geometry first).

[florian_wenzel]

Hi

Thanks for Solution,

When you saw, that the Surface was a Mesh?

And how to Convert the Mesh to Surface?

When i make a Thicknes from the Surface, then i have a Solid.

What you mean , that you still  stitched Ther Surface and repair the Surface.

how did you repair the Surface?

Maybe this is also a Solution for my other Post Question:

Unwrap Surface Problem - Autodesk Community - Inventor

Thanks

[Gabriel_Watson]

When you highlight the part/surface/geometry you can see some lines like those on the picture I attached in my previous commend. Those usually denote a geometry that came imported as STL or other format. To repair surfaces and stitch/etc. you can right-click the "repaired geometry" on the part I attached and go to "Repair Bodies", or simply go to 3D Model (tab) > Surface (section) > Repair Bodies.
I stitched things because after thickening and copying there was still a composite surface I was left with, so I knew something needed to be closed.

[florian_wenzel]

Hi,

for me it works not Always

For example File Surface_A.ipt

In This Case, im not able to select the SurfaceBody or Face etc..

It works only, when i save this File as STP, and Then i Open in Inventor.

Now im able to select The Face with Method Repair Bodeis

I was hoping, that it solve my Problem with Unwrap, but without Success.

Thanks for Solution to DXF Export.

[Gabriel_Watson]

That is why I used the Copy Object after thickening. You cannot apply repair to the imported surface as it is.

I attempted the other problem you posted about unwrapping, but it looks like the meshed surface basically broke your surface into 200 or so shards, and even after selecting all of those edges to constitute the unwrap I was unsuccessful.