DraftSight 2D CAD software, which lets users create, view, and edit DWG and DXF files, is free -- and it comes with its own online social-networking communities. Online communities for DraftSight, www ...

MCAD tool Solidworks once had issues working with DWG files, so it licensed a DWG clone and gave it away for free. Over time, this product evolved into professional CAD tool, DraftSight. Martyn Day ...