Thanks Gael, you are right. This is the wrong place. I solved this circumstance by making heavy "use" of a good cutter blade. I now have printed all parts for the head and left arm; can't wait to have it complete. :-)
I work full time as a Sculptor, Modelmaker in my own company
Since a short time I started to work on a project, called InMoov, to create the first 3D printable humanoid robot. As it is now most parts are under an Open source, non commercial licence. Anybody with a 3D printer can build my robot InMoov.