Attached Link: http://creafab.free.fr

You know, I also found Amapi a bit weird, but now that I master it (!!!!!!!!!!!!!!!!) and that I understand a little of its logic, it appears...easier ! Just a tip for the Amapi booleans : for a mesh substraction, first select the object you want to make disappear, then select tne "Cut" tool (I think it's its english name, and then click on the mesh you want a part to be cut. Fabien3D CREAFab, la crtion numique autrement...