FreeCAD is a general purpose 3D CAD modeler, aimed at mechanical engineering and product design, but also fits in a wider range of uses around engineering, such as architecture or other engineering specialties. Due to the Python version in Slackware 15.0, the version of this SlackBuild is frozen at 1.0.2. Source tarballs for GSL and OndselSolver needed for FreeCAD are provided by the maintainer. Anyone wishing to generate their own tarballs may do so by using the scripts get-GSL.sh and get-OndselSolver.sh supplied here (or make their own arrangements).