Rhinoceros 5

Rhino 5 for Windows - This fully functional (except the clipboard) version will save 25 times. After that it is still functional except it will not save and plug-ins will no longer run, unless you purchase a license.

It is a good toll for 3D design and modeling, It is not mutch of a CAD, thou, you can make 2D drawings. It strengts is 3D modeling.

More than 3,500 enhancements.
The Rhino 5 development process started more than five years ago with one overriding goal—to remove as many of your workflow bottlenecks as possible. That meant making Rhino faster and able to handle much larger models and project teams, in addition to making thousands of large and small improvements.
Thanks to more than 40,000 pre‑release users, we were able to field test and refine Rhino 5, making it the most stable version ever.

Digital Fabrication and 3‑D Printing
As you may know, the Rhino development project started nearly 20 years ago to provide marine designers with tools for building computer models that could be used to drive the digitally controlled fabrication equipment used in shipyards.
We continue to focus on the fact that designs are only useful once they are built and in the hands of consumers. With the cost of digital fabrication and 3‑D printing technology dropping quickly, more and more designers now have direct access to 3‑D digital fabrication equipment.
While we are not experts on all the many fabrication, manufacturing, or construction processes, we do focus on making sure that Rhino models can be accurate enough for and accessible to all the processes involved in a design becoming a reality.