As the author did state write: "While I only have experience drawing in 2D, how much harder could it be to add one more D? Fairly hard, it turns out." Being a

As the author did state write: "While I only have experience drawing in 2D, how much harder could it be to add one more D? Fairly hard, it turns out." Being a mechanical engineer doesn't mean you automatically can draw 3D models (and I should know, I was a mechanical engineer).