The CommonCAD component's packages contain the phases of the developing. The required features are: grip points, inspector, layers, object snaping, 3d, undo, redo, dxf export-import, print, support of PPC (programmable parametric component)...
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.