Hi seasonofchange - is it a particularly large IGES file such that you may be running out of memory when it is loaded?

Otherwise can you please post the IGES file here or send it to me through e-mail at moi@moi3d.com if you want to keep it private so I can check it out and see if there is some bug in the importer that needs to be fixed.

Which program are you using for generating the IGES file. Does the crash happen with any IGES file generated by that program, even for something like a box, or do you get a crash just with one specific model file?

- Michael

Also if the IGES file contains a lot of little tiny slivery pieces in it, it could be possible that the joining process of gluing together all those little pieces is getting confused.

You can disable the join by going to Options > Import/Export > IGES options > "Join surfaces on import".

Does it make any difference if that is disabled?

- Michael

Thanks alot for the quick and good answer Michael!
The problem was the gluing process..
Now all works good! Is it possible to glue the pieces after the import process?
Thanks again!

Hi seasonofchange,

> Is it possible to glue the pieces after the import process?

It is possible to do that by selecting surfaces and then using the Edit > Join command. But presumably there is some kind of situation in your geometry (most likely little slivery surface fragments) that the joiner is seeming to have difficulty handling. So there may be some particular area of the model that won't join properly.

You could try using STEP or SAT format instead - those formats transfer already joined solids so MoI does not generally have to figure out how to join a big bunch of surfaces up for those formats.

- Michael

thanks again!