First at all, thanks Zydac for model. Printed 1:1 scale, 0.3 layer, PLA, 15% infill, 3 perimeters. Prusa i3 rework home made. Now I'll try to smooth the external surface, but not too much, since the original material is quiet rought and I'm planning to cover the base with three successive layer of fine silica sand, in order to obtain a "real" touch for the entire figure. .