I work in field of automation in Automation Alley. Robots are already making robots. Of course they are programmed with control software. There would have to be significant advancement in AI and mechanical servo motor and gear reduction to use a sentient-like humanoid robot for precise manufacturing .

The existing 6-axis robots are damn good at what they do. I’m not sure I even believe in computers that need no instruction. I think that AI is getting smarter, but computers may always need input and controls to function. They may never have free will, but I don’t know. If they do have free will, they will make things we can’t comprehend for their benefit.