Michael,

The only way I can import 3D object in that program is via an STL file or via a heightmap kind of image.

As for 2D drawings it's only via the DXF importer. Though it can read 2D splines elements, a circle becomes a kind of an incorrect rounded rectangle and a rectangle become some weird form. I tested creating line, polys, circles and arcs with a simple 2D cad program (QCad) and beside a circle becoming an ellipse and having unconnected lines segments it's usable but QCad doesn't read in spline elements correctly either.

I though I'd try to rebuild every thing with lots of control points and though the various shape look much better now they are still incorrect. I guess my best option for now is to create my 2D dxf file directly in QCad.

Don't worry, I'll find a way.

Thanks,
Felix