My journey into CAD in order to use a 3D printer

This topic will act as a sort of journal hoping that other new users can benefit. I have done a lot of professional (IBM) product/project critiques and pride myself on being open-minded.

I am on the autistic spectrum, 81 years old, but I started with computers in 1959, so I am, as they say, an old hand.

Some of my friends here convinced me to try Fusion 360. I have tried that product and almost every other at least once in the last 5 or so years with NO understanding (grock for Heinlein fans) happening.

My good frenemy @davee pointed me at a YouTube 36-part Fusion 360 course by Paul McWhorter. For several reasons, I had looked at a few of his videos on other subjects before, which were not to my taste. Dave knows me at least a bit, and I think he understands some of my strengths and weaknesses, so he insisted that I would 'get it.' He said to start at episode 4, as the first 3 were about setting up a 3D printer. Long story short, I was indeed able to grock the 2D basics by episode 7, if not earlier. I am now 99.999% sure I will master this CAD at least well enough for most of my needs and will have a handful of members here to assist if not PM himself.

I was watching a YT video on other beginner CAD programs this morning and noticed that almost all of them were, in fact, harder to use than Fusion 360. One program in particular did NOT even have a filet or chamfer tool.

More soon.