Hi, for 3D MCAD conversion from kicad ECAD environment I've done this script: '
Kicad StepUp script ECAD to MCAD':
With kicad StepUp, it is possible to work in kicad EDA with the same component model data available in the STEP AP214 3D format, and obtain a 3D STEP AP214 model of the pcb board and a complete board assembles with electronic modules, to be used for MCAD interchange.
The accurate 3D visualization of components on board assembles in kicad 3dviewer, is maintained in the same accuracy and aspect in STEP AP214 format.
here there is a video tutorial of the script:
kicad StepUp video howto
and attached there is a picture of how the ECAD and MCAD environments can be matched each other...
(feedbacks are welcome)
Maurice