Here , in Tenerife, I have assisted to events with 3D printers.
Seems a tool for graphical designers and for special purposes.
And basically for makers. In Tenerife almost no industry. Only turism.
But any 3D printer needs a 3D sensor prior to capture the model.
I am searching for a couple of yerars for a tool able to measure locals (rooms) at a reasonable price.
The cheapest and with some possibilities seems to me structure.io from Occipital using an iPad.
The distance for scanning is up to 3.5 meters (in a couple of years from 3.00 to 3.50 meters). The expensive sensors from FARO or Leica I can't afford.
The 3D printers seems to theorical design. You can't do metal pieces or construction projects seriously. These machines are limited - as a reasonable target - for not making weapons.
When 3D printer began to appear an association in Tenerife propose as an alternative to independence industry. But by normative, by security, all these targets are limited or forbidden.
It's similar to the solar energy.
Here in Tenerife we are in eternal spring, but the law limites the use of solar energy...
With or without security issues , the reality shows that promising fields are cercenated by other interests.