This question is related to following question: questions/130883 which has not been answered yet, because a workaround has been found using an import feature from Autocad.
Basically, I want to generate a 3D object or 3D curve by Mathematica and import it in .step format in a CAD software (SolidEdge). An stl format is not enough to do what I need because I need to import the 3D object into a native CAD design while keeping the geometry relationship.
In other terms, I have a 3D CAD design in SolidEdge, I export it as stl file, then I import it to Mathematica, do some processing (like slicing it by a plane or another surface, drawing geodesics,etc.) , after that I need to export the resulting 3D curve into a step file, in order to reimport it in my initial CAD design in SolidEdge, then finish the design into Solidedge.
I had a look on Mathematica CAD format Export list from documentation, as well as the import format file for SolidEdge, and there is no other match than stl, which is not what I want.