@sparrowsion yeah, I'm trying to use FreeCAD and I started with "create a part" which looked so friendly and I can't even find a button or a menu item for "add a [cube or sphere or cylinder or even anything]" or how to switch to a mode that will let me add any shapes at all.

I say this as an expert user of Inkscape, it's not like I can't handle shape manipulation, but *all* 3d packages seem to be beyond me.

TinkerCAD doesn't seem to do much apart from upsell to the paid product.