In CAD workflows, especially those involving SolidWorks or similar Solid Modeling tools, a "solid feature" generally refers to geometry that has volume, such as an extrude, revolve, or sweep. The "zip" aspect typically refers to one of two things:
If you are working with solid models, you might be looking for these common "solid features": _cplzip
Are you trying to a specific assembly for sharing, or In CAD workflows, especially those involving SolidWorks or
: Creates a cut or base by moving a solid profile along a defined path, which is powerful for modeling tool paths. In CAD workflows
: Used to emboss, deboss, or split a face by wrapping a 2D sketch onto a planar or curved surface.