Best Free CAD Modeling and rendering Softwares
1. FreeCAD
FreeCAD is a parametric 3D modeler, In Parametric Modeling, Features are defined to be parametric shapes associated with attributes such as intrinsic geometric parameters (length, width, depth etc.), position and orientation, geometric tolerances, material properties, and references to other features
You may download the latest version of freeCAD from
http://sourceforge.net/projects/free-cad/files/latest/download
FreeCAD is based on OpenCasCade, a powerful geometry kernel, features an Open Inventor-compliant
3D scene representation model provided by the Coin 3D library, and a broad Python API.
If you are interested to contribute to the FreeCAD , you may download the source code from
http://sourceforge.net/p/free-cad/code/ci/master/tree/
2. Blender
Blender is an open source project licensed under the GNU GPL. All code is written in C, C++ and Python
Some of main features of free software blender are given below
1. Photorealistic Rendering - HDR lighting support
2. Fast Modeling - Keyboard shortcuts for a fast workflow
3. Realistic Materials - Open Shading Language (OSL) support
4. Fast Rigging - Envelope, skeleton and automatic skinning
5. Animation toolset - Automated walk-cycles along paths
Download Blender for Windows
64 Bit version : http://ftp.nluug.nl/pub/graphics/blender/release/Blender2.71/blender-2.71-windows64.exe
32 bit version : http://ftp.nluug.nl/pub/graphics/blender/release/Blender2.71/blender-2.71-windows32.exe
Download Blender for MAC OS
64 Bit version : http://ftp.nluug.nl/pub/graphics/blender/release/Blender2.71/blender-2.71-OSX_10.6-j2k-fix-x86_64.zip
32 bit version : http://ftp.nluug.nl/pub/graphics/blender/release/Blender2.71/blender-2.71-OSX_10.6-j2k-fix-i386.zip
Download Blender for LINUX
64 Bit version : http://ftp.nluug.nl/pub/graphics/blender/release/Blender2.71/blender-2.71-linux-glibc211-x86_64.tar.bz2
32 bit version : http://ftp.nluug.nl/pub/graphics/blender/release/Blender2.71/blender-2.71-linux-glibc211-i686.tar.bz2
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