Nice article, though what I'd personally love to see is a resource where I can go from zero to actually making (basic) designs using open source tools, which can then be taken to a 3D printer and printed.
replies(2):
For me Blender has all I need for creating Models for 3D-Printing. And if e.g. Geometry-Nodes get some more love in Blender, they could become a base for proper parametric modelling...