“A man will be imprisoned in a room with a door that’s unlocked and opens inwards; as long as it does not occur to him to pull rather than push.”–Ludwig Wittgenstein.

The first time 3D printing was intro­duced to the world was back in the 1980s in Japan. In 1981, Hideo Kodama was trying to devel­op a rapid prototyp­ing system and he came up with a lay­er-by-layer approach for manufacturing using a photosensi­tive resin that was polymerised by a UV light. Even through Kodama was unable to file the patent requirements for this technology, he is usually credited as being the first inventor of this system. A few years later, a trio of French researches were also seeking to create a rapid prototyping machine and they used cured liquid monomers instead of resin. They turned liq­uid into solid through lasers. They were also un­able to file a patent for this technology but they are credited with creating the system