First
3D movies, then 3D TV, and now 3D printing? Those Star Wars holograms
are starting to look a little old hat from where we’re standing in the
twenty-first century. But, wait: what actually is 3D
printing? And how’s it going to make expressing yourself with your
smartphone easier? Surely slapping ink on paper is a pretty
two-dimensional process, right?
Slice it right
Well, yes; but 3D printing, aka additive manufacturing, is more like
building than printing—or, at least, the part we’d recognise as printing
is in fact just one step in the process. Additive manufacturing takes
blueprints from software like CAD or animation modelling programmes, and
chops them up (virtually) into cross sections, like very thin slices.
These slices then get printed (so far, so familiar), and, as the
printing proceeds, the machine binds them together in order so that the
virtual model from the blueprints takes shape as a 3D reality.
The binding methods vary, and the materials used for the slices also
vary (paper, polymers, metal and even ceramics, glass and precious
metals are all used), but though the tech is complex, the end result is
the same: rather than merely printing out the blueprints for
construction or model-building or parts manufacturing, 3D printers can
be used to print functional components from scratch.
The 3d printed pluses
Any catch? Not really. 3D printing is faster than ordinary
manufacturing, and, if you’re working with relatively small quantities
of parts, it can also be less expensive than, for instance, injection
moulding processes. And, unlike what the industry has started to call
‘subtractive’ manufacturing, there’s very little waste.
Instead of cutting and drilling into your raw materials to stick them
together and leaving large offcuts behind, additive manufacturing only
uses the exact material needed to make the part. Plus you cut down on
the manufacturing needed to make the very specific manufacturing tools
themselves, since the 3D printer does all the work. The tech isn’t
perfect yet; it’s not dirt cheap and it’s messy if it goes wrong (think
goo!), but it’s improving very quickly.
A swell shell
So how does it affect me? To start with 3D printers are starting to
break into the domestic market, with prices in the low thousands, which
has got to be getting plenty of cottage industry crafters very excited
indeed. The model-making possibilities for engineers and designers have
exploded; 3D printing makes it considerably faster to produce a
prototype than ever before. What’s more, office suppliers, Staples, are
soon to open European branches with a 3D print facility. Then of course
there’s the Nokia initiative to help people to 3D print shells for their
Nokia Lumia 820s.
Why have we done this? Well, for a start, personal expression is part of
Nokia’s design DNA. In fact, we’ve created phones that help people
stand out from the crowd for decades. By working with Makerbot to make
3D printing affordable, we hope to both inspire personal expression, and
accelerate the development of an exciting new technology. Added to
that it’s incredibly exciting to see what people create and how they
makes shells to reflect their personalities and lifestyles.
Living in the future just keeps getting better and better, but what most
excites you about the 3D possibilities? Let us know in the comments
below.
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