For those using SketchUp for mechanical engineering, architecture, or 3D printing, FreeCAD is an excellent open-source parametric 3D modeler.
"Unlocking the Full Potential of SketchUp Pro 2017: A Guide to Legal and Safe Usage" serial number and authorization code sketchup pro 2017 free
a legal license for SketchUp Pro 2017 and need your details: Check Your Email : Search your inbox for a confirmation from sketchupmail@sketchup.com Use the License Manager : You can attempt to retrieve your code via the SketchUp License Manager or 3D printing