@dalias I agree with your general argument, but my uneducated guess for routing and timing for 3D printing is that it would be full of NP complete optimization problems where heuristic solutions are appropriate? If so, maybe throwing an AI at it is an expensive but not entirely misguided approach?
@BuschnicK There's a tiny chance that might be right if the topic were travel order, but the topic was literally something where the answer is as dumb as "you can only exceed your heater's sustained melt rate capability in short bursts, and doing that on the outside surface may look bad".