currently learning 3d "solid" design with blender for 3dprinter. I am aware blender is not the fit a cad app would be (), but it 'works' if you are careful what you do (I am not). This morning I had to clean the poor 3dprinter of a spaghetti-gone-wrong accident, because my hubris-3d-design submitted last night was not as clever as I naively thought. () the advantage of using blender is that, as a byproduct I will eventually have learned blender..