Errors with STL file about obj-to-iges HOT 5 OPEN

Sorry.
STL files cannot be used for input.
Please try converting them to OBJ format before executing.

from obj-to-iges.

Thank you @Sanaxen

I tried with OBJ file (converted from STL), but the program stops (or hangs) at very beginning:

I tried various way of converting to OBJ, and same issue.
I also tried other obj files (original), but still failed.

Here is the OBJ file
Bunny-OBJ.zip

from obj-to-iges.

Sorry for the lack of explanation.
This tool is for OBJs with UV information.

The attached log shows an error for vertex uv num error.
This tool is called from mesh2cad when converting OBJ to CAD data, so it is recommended to use mesh2cad.

However, when I tried it, it generated a non-manifold part. I ended up with an incomplete conversion.
I tried several parameters without success.

I assume that the topology of the mesh data is correct, but it fails if there are small or collapsed triangles.
It is important to clean up the mesh data automatically.

However, this could be due to mesh2cad's segmentation process.
At this time it is not possible to automatically clean up the data output by segmentation.

I have attached the incomplete conversion.
iges.zip

from obj-to-iges.

uvmapping.zip

from obj-to-iges.

I used meshlab's function “Decimation with Simplified Quadric Edge Collapse”.
Conversion to CAD data went well.

iges (2).zip
uvmapping (2).zip

from obj-to-iges.