Manual Preparing models for 3D printing FreeCAD 20 08 2021· It features tools that generate full machine paths and others that generate only parts of a G code project that can then be assembled to form a whole milling operation Generating CNC milling paths is another subject that is much too vast to fit in this manual so we are going to show how to build a simple Path project without caring much about most of the details of real CNC machining