If fancy manufacturing facilities with expensive equipment don't scale well because construction materials are manufactured in a lot of small factories rather t

If fancy manufacturing facilities with expensive equipment don't scale well because construction materials are manufactured in a lot of small factories rather than a few big ones, it seems like an obvious way to improve construction is to reduce the cost of that fancy equipment so that it's available even to small operations. We see this with a lot of smaller-scale tools: 3D printers, CNCs, laser cutters, welders, pick-and-place machines for assembling circuit boards, etc.. are things that have become affordable to casual hobbyists. I could see augmented reality being a big deal for construction. See exactly where everything is supposed to go as you install it. Maybe eventually a mobile 3D-printing gantry that can be quickly deployed on site will be something that a small local business would own.