Watched the full production line for a Keyang angle grinder: Most of the runtime is spent on the armature... copper winding, commutator work, varnish, balancing, and pressing the gears on. You can see how many individual stations and checks it goes through before it even reaches the housing. A lot of the work is still semi-manual and tightly controlled. THESE are the things that are everywhere in manufacturing, and besides the cool demos you see with humanoids folding shirts, automating this will take many more years... —— Weekly robotics and AI insights. Subscribe for free: