I learned to draft on a drafting table with a pencil and rulers when I was young both watching my father and in a high school class. I took an autocad(r) course in college. I taught myself autocad(r) and MANY other programs trying to become somewhat efficient at getting concepts out of my head into the computer. I have always struggled with these tools. They seem to do some things well and then something fundamental (to me) not so well (or not at all). Mainly I have never found a tool that seems to fit me, until now.
Autodesk Fusion 360(r) is a extremely intuitive comprehensive design tool. I have learned to operate somewhat effectively with only completing a few of the provided step-by-step tutorials The package does design, assembly, animation, rendering, FEM, 3D printing, CAM and more. It is free for hobbyist (for a year) and free to students (3 years).
I have maybe 2-3 hours with the application and below is the layout of my mill electrical panel. It's fairly empowering to see a design before building it.
Hats off to Autodesk for providing the community with such a powerful tool for free (and actually a reasonable paid rate of $20/month). They also provide loads of training sessions for free. I hope this platform flourishes and the hobby community leverages the power it contains. In my opinion, Fusion 360 is in a class entirely by itself (that is a lot coming from me).