For More Reading and Info you can visit

https://www.youtube.com/watch?v=Vx0Z6LplaMU

https://en.wikipedia.org/wiki/3D_printing

https://www.3dhubs.com/what-is-3d-printing

https://www.digitaltrends.com/computing/what-is-3d-printing/

https://3dprinting.com/what-is-3d-printing/

https://www.youtube.com/watch?v=FSu19nz7NlE

https://www.youtube.com/watch?v=ispolAHB4jA