Well first I'm sorry for this noob question, but I was wondering for a while whether anyone has tried this before. I have some experience in CAD and Solidworks that can be applied in the hobby (designing frag plugs, coral racks, etc...) But I don't know if I can make money out of that, providing that I have a 3d printer and materials on hands. I don't expect to get rich but some $ to sustain the hobby would be great. Any thoughts?