Nice looking bridge too. So now we don’t need steelworkers anymore either.
Seems like it will take weeks to print a bridge that could have been prefabbed offsite and erected in a day with a crane.
A proof of concept, but not (yet) an advancement in efficiency or cost savings.
This is the sort of technology necessary for a Moon settlement/factory and especially colonizing Mars.
The robot machine needs to be able to ingest lunar or Martian regolith and use those raw materials to form construction members such as pipes, plates, glass, etc.
On Mars, gleaning oxygen and water from the atmosphere would be a must.
With robots the likelihood of an building error is pretty small if the human designers get the numbers in their blueprints right.
But the downside is that this will put a lot of people out of work if it is too good.
What is the compressive, tensile and shear strength of the material after it's "in place?"
How dumb is the general public, anyway?