My home made machine runs Freecad and I think its a great piece of software.Since the previous poster mentioned running it on Ubuntu,I wonder if he is using the latest version-either the daily update or the appimage version.Both of these may have updates which the Ubuntu software repository may not have.I have no idea which of the available post processors would be best with a 3018 machine but there may be something suitable-particularly if you can use arguments in the post processor options section to include the line ending that is necessary.It might be worth asking in the Path section of the Freecad forum https://forum.freecadweb.org/viewfor...84dc5e41a2e2cc .