admesh : CLI and C library for processing triangulated solid meshes ( https://admesh.readthedocs.io/ )
antimony : CAD from a parallel universe ( http://www.mattkeeter.com/projects/antimony/3/ )
cadquery : A parametric CAD scripting framework based on PythonOCC ( https://github.com/CadQuery/cadquery )
cq-editor : CadQuery GUI editor based on PyQT ( https://github.com/CadQuery/CQ-editor )
genericcam : Generic CAM is an open source tool path generator for CNC machines. ( http://genericcam.sourceforge.net/ )
heekscad : Computer-Aided Design application based on OCE ( https://github.com/Heeks/heekscad )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a booboo
For Paludis use this rsync : rsync://gentoo.zugaina.org/booboo-portage
If you have a problem : ycarus(-at-)zugaina.org