Working on products and projects feels like solving design sudokus, with many issues to fit in. Functionality, economics, poetry, sustainability, aesthetics, efficiency, psychology, technology, anthropology are just some.
Industrial design is associated with mass manufactured items, but we started off to make things by hand. Often during long winters cutting puppets, nutcrackers or patterns to kill time. Some techniques have evolved into true masterly levels and designers can use these crafts to make products, challenging the old techniques, just as they stretch the limits of a modern laser cutter, 3d printer or cnc-machine. Design stretches techniques and the limits of making processes; the word 'industrial' is too poor here. The trick is to end up with the the appropriate object with the appropriate production method. Somehow there is not much difference than between designing mouthblown glass or an object realized through injection moulding.