What I am reading here (and in other similar posts on other forums) leads me to put Fusion360 and similar "free as in free beer" CADs far from my mind, really. Imagine after investing hours or days in learning the thing, and then they decide that they don't want non-paying customers that much anymore. Like CADSoft/Eagle earlier this year. *Shudder*. Guess if/when Sketchup packs up, I'll give FreeCAD a look-see; last time I checked that one out, usability was rather "meh".