Open Source Solid Modeling CAD
X3D is the open-standard format for 3D graphics scenes on the Web.
Xj3D is an open-source Java codebase for the X3D Graphics standard.
Creates 3D models from photographs
Converts between many 3D data formats
Maxwell Render for Blender
A simple and easy to use render farm for Blender
Blender Python user external scripts
Cuts 3D objects from polystyrene foam (EPS/XPS)