nanoCAD

Professional and intuitive CAD software that's available for free on the Windows operating system

The 2014 version of the popular and user-friendly 3D modeling software

Freeware 3D animation software that keeps getting better

Free CAD software to enable users to create, edit, and view DWG files

Load predesigned 3D model assets in a virtual environment to create custom 3D animated scenes

Quality 3D modeling software that includes tutorials and a nice help section

Add on that allows for the creation of more realistic 3D drawings