I use Autodesk 123d design for CAD - I think it's a brilliant program for the type of stuff I do, about half way between Tinker cad and Fusion360. Unfortunately, for some reason it has been discontinued by Autodesk, I really can't understand why.Yup great side hobby! What software are you using to make files? I do a lot of my own designs, but I'm not ashamed of printing files made by others. Like these.....
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Just at the moment I'm attempting to designing/make an air rifle. I do the design, then 3d print bits of it it, to see how it looks and generally tinker about with it, re-design, re-print etc. then, if it shows promise, try and make it with the tools and materials I have.
Yesterday I made the hammer: