>>danboa+(OP)
I don’t do mechanical design anymore but did prior for about a decade. A lot of the examples the author has is text to 3D model which is not the same as text to CAD. Think of AutoCAD (even though it’s 2D CAD, the example still stands). You would design a blueprint of your house with it but you won’t make an ice cream sundae model. You would use Maya for that.