I've been a balsa modeler for over 40 years. Some of my earliest memories of seeing a model airplane fly were when my brother got a control line airplane for Christmas. The smell of balsa wood, glue, dope, and model fuel stuck with me.
I've done it all, Free Flight, Control Line, and of course RC. The first time I saw a laser cut kit, I knew I had to have a laser. They were very expensive and still not super cheap, but attainable. The thing that kept me from purchasing one, was I needed to know CAD. I was an adequate draftsman with pencil and paper, but plotting ribs was time consuming.
Eventually, I learned 2D CAD and had some good results, but again double checking measurements was time consuming. So, I downloaded Fusion360.
There really wasn't a guide out there to help me solve the puzzles I was trying to create. With all my learning and fiddling, here is a no frills approach for modelers who just want to create 3D model airplanes!