I ve been thinking about this question a lot. I can’t believe that technology will make possible to print with materials like iron very fast. What do you think?

https://elebia.com/

Yes, This may take time but it is not impossible like there are materials which are melted while 3D printing the same way Iron can also be melted and can be 3d printed.

Absolutely! The technology has come so far and only shows signs of advancing!

Absolutely, also if you see there are many variety of 3D printers where if you see lazor 3D printers are also the one fining slicing and more advanced.