What is the fourth dimension? Time, of course; with one of Tibbits' lab projects being a self-organising fish tank, which harnesses the technology of 4-D printing.
His frustration with the laborious construction process is what led him to pursue the fourth dimension of printing: programming objects with the ability to self-transform over time. How does he do it? Well, vaguely put, 3-D printing begins to enter the realm of self-assembly, where components with fixed properties and shapes can come together to form new objects if given an energy input; when smart materials are embedded with programmed behaviour and combined in a multi-material structure.
I just can't help but wonder, when this level of printing, will become affordable to the wider public such as myself.
I first heard about 4-D printing from Skylar Tibbits himself from various TED talks he gave, popularising the infamous concept. During one of his talks he said that Architects should be using their skill sets, and their ability to think radically, to push the boundaries of what's possible - and I completely agree! It's about time that Architecture reflected the development of modern technology in almost every field - synthetic biology, chemistry, physics, material science - where there has been a boom around design tools and software.



