Hi mdesign,

re:
> 2) I`ve tried to export subd for Michael but file has got 300MB

It sounds like it is a very dense file in its sub-d cage. Is it made up of all quads or is it triangles?

The MoI converter is more oriented towards converting sub-d models with a relatively sparse sub-d cage (with all quads) that was created by someone directly modeling the sub-d cage controlling edge flows, not for high density scanning conversions.

For something like that you're probably not really looking for a sub-d conversion, you'd need to look more for point cloud/high res scan data conversion. Those are pretty different kinds of data. MoI's converter is not meant for processing high density point cloud type data.

You might check out some of the reverse engineering plug-ins for Rhino at:
https://www.rhino3d.com/resources/#tabs-17

But if your model geometry has a lot of little high frequency bumps in it requiring millions of polygons in the sub-d control cage, it may just not be very suitable for conversion to CAD surfaces at all though.

Can you maybe show some of what your sub-d mesh structure looks like?

- Michael