Hi, Thank you Coutie. Grrrrrr! it complicates me for that. I do not have experience with gmt files and I never understood how they were assembled to form a circuit. I can get started but I'm in the blurry. -To open a .gmt format you need a suitable software, like 3Dmax I think but this one is too expensive for me. Can the "DSimED31t" or "Blender3d" do the job? -And where take a tutorial for a beginner for the use and assembly Gmt (creation of track). I found some but they are for advanced user and with 3Dmax.
Thanks Lazza for this info. I'm going to test to understand how the mesh circuits. I see that you are very little to master this subject (track). So I will do it with great modesty and a lot of reserve ;-)