On 02.05.22 16:04, William F. Adams via Discuss wrote: >  - is there a 3D version of the DXF format? Yes, DXF can store 3D information but this is not likely to be supported unless someone comes with a comprehensive DXF library that's widely available. Proprietary formats are a huge pain to work with. >  - could colour-coding of SVGs be added export from OpenSCAD? In theory yes. >  - could it be made possible to layer intersecting DXFs or > SVGs so that the manual re-arranging wouldn't be necessary? Yes. >  - could there be a way to export open geometry --- all I > need for this is a line --- from OpenSCAD in a DXF or SVG? Probably not as that contradicts the "Solid" part of the current engine. I don't know if there's a reasonable way ignoring that. OpenSCAD does that partially for STLs but that has all sorts of problems on it's own. ciao, Torsten.