I have been using the graphics program Blender to start with an .obj file of an airplane then create the inside sections to make scale RC planes. I export the sections as an .stl to print on my 3D printer. Then I trace the sections onto balsa or ply and cut them out. I want to make the process easier and cut them with a laser cutter. I have ordered a Glowforge for this purpose, maybe to sell kits. I’m not sure how to get the sections into a format the Glowforge will accept. Here is a link to the sections on youmagine.
This is an .stl file which I know is 3D, but the sections are only 2D. Can this file be easily converted for use on the Glowforge. Obviously, the parts need to remain exactly the same size.