Almost I got about my 3D printer. And next, I returned to develop GMP script.
Now, I'm using 'Skin' modifier to make body parts, but in this method, I couldn't make details of the parts. So I need to change 'Vertex Select Mode' to 'Face select Mode' to edit subsurf modified (I mean 'Applied') faces. This is 'Hybrid' system of GMP and GMP2.
After some tries, I got this result. I think this is good, and next is 'Wing shape'.