The dxl file issued after flatting is not entered in any CAD program. I have to open it through ARTCAM2018, then the vector will be saved from it in dxf cad-r14. After that, it is already opened by any cad program. What could be there ??
What version of DELFTship are you using? Have you tried saving as R14 straight from the save-as menu?
I’m afraid there is not much I can do for you there, as we do not have these CAD programs. As far as I am aware we do conform to standards. Have you contacted the suppliers of your CAD software with this?