FreeCAD . It is a free and open source CAD editor developed from OpenCasCade, QT and Python .
Description
A 3D space-oriented computer-aided design (CAD) program that includes all basic functions and is capable of advanced motion simulation.
It is an ideal tool for both students and teachers and professionals from various scientific sectors.
What can we do with FreeCAD?
With this program, users can create and manipulate assemblies of different parts.
The pieces are three-dimensional solid bodies, which can be connected to each other through joints, unions, constants, contacts, motors, forces, gravity, etc.
Both the pieces and the connections will define the structure, the mechanism or the machine with which we are working. In FreeCAD it is also possible to simulate a dynamic behavior of the system through animations.
It is very useful for study and work in various fields: geometry , kinematics , dynamics, vibrations, couplings, cameras, industrial design of machines and physics.
Sources
FreeCAD  |
| Part of the 3D Modeling Software family |
 FreeCAD window |
| Latest stable version | FreeCAD 0.11 |
| Language | English , German , French , Italian , Spanish and Swedish |
| License | GNU General Public License, GNU Lesser General Public License |
| FreeCAD.com website – CAD freeware |
| WARNING: FreeCAD has moved! FreeCAD code and release files are now hosted on Github. Only older files and code are available here. |
| Download FreeCAD |