From Ralph Hancock
Daedalus imagined a process very similar to, but earlier than, Chuck Hull's first method of 3D printing in 1983. He suggested developing a liquid monomer that would be polymerised when simultaneously illuminated at two frequencies. Directing two laser beams into a vat of the stuff would create a solid object of absolutely any shape – “even complex interlocking and re-entrant shapes quite impossible to mould”.
London, UK
