Just like in early 2000, C language was once so popular and suddenly it was replaced by different other languages and the software engineer who only adept at C lost their jobs.Not sure when this 3D printed house will be at scale and how it’s changing supply vs demand picture in the rental market.Or maybe it’s just like a on-going competition between diesel engine vs electrified battery/fuel cell as we see nowadays.

I agree heat pump at low temps us a challenge but like fuel injection and engine control computers science and mfgers will solve the problems.

Hey @Barbara Chaney, like @Becky Haag says, nothing is perfect but here is what I think about those algorithms.

I already acquired the land and taking bids from Civil engineering, Architects and Builders.I am trying to get this project done under 90$/sft to be Competitive in the market.

I am also a licensed mechanical engineer. 

It has never cost more to buy oriented strand board, known as OSB and used for walls, Southern yellow pine, which is favored for fences and decks, or ponderosa pine, which is popular in cabinetry and interior trim.Many engineered wood products used in new construction, such as I-joists, are in short supply, and mills are backlogged with orders well into March, the pricing service said.

Problem with the tiny modles is that they have essentically all the same components a big loader has: a body, a diesel engine, hydrulics, cab and controls, arm and bucket.

As Melanie said, the latter will be a problem for insurance.If they are hard on the home and you're going to have to repaint after they leave, let them paint it BUT you have a say in the colour (ie you can veto red engine red). 

They will know more than you or me about all of the systems that make up a house, but they don't know as much about plumbing as a plumber or foundations as an engineer, etc.  

Flooring, replacing old carpet with engineered hardwood or laminate, or refinishing hardwood.4.