I don't know, but maybe you can try also MathMod, the successor of K3DSurf...:

https://sourceforge.net/projects/mathmod/

The nice thing however about Math Modeler is that it generates (mostly) Curved Surfaces
objects based on Bezier Splines, which can be exported from Shade as .iges file and then
imported into MoI and there further processed.

Not to be off-topic, but here's a little doodle i did yesterday, just exported the splines from
Math Modeler from Shade and then imported them into MoI and made a solid out of them.
After that processed in ZBrush and texture painted in 3DCoat.



Regards
Stefan