See if http://freecadweb.org or/and http://www.salome-platform.org or/and
http://www.openscad.org fill your requirements. They all are in Trisquel's
repository.
- [Trisquel-users] Need a physics simulator vitacell
- Re: [Trisquel-users] Need a physics simulator mcz
- Re: [Trisquel-users] Need a physics simulator greatgnu
- [Trisquel-users] Re : Need a physics simulator lcerf
