History of 3D Printing: It’s Older Than You Are (That Is, If You’re Under 30)

by Dana Goldberg
Manufacturing - Sep 5 2014 - 4 min read
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What’s 30 years old but looks brand new? Believe it or not, it’s 3D printing. Yep, additive manufacturing technology has been around since the Reagan era. Here’s a brief tour through the history of 3D printing.

1981–1999: The Toddlerhood of Additive Manufacturing

In 1981, Hideo Kodama of Nagoya Municipal Industrial Research Institute published his account of a functional rapid prototyping system using photopolymers (more on those in a minute). A solid, printed model was built up in layers, each of which corresponded to a cross-sectional slice in the model. Sound familiar?

Three years later, in 1984, Charles Hull broke new ground by inventing stereolithography. Stereolithography lets designers create 3D models using digital data, which can then be used to create a tangible object.

The key to stereolithography is a kind of acrylic-based material known as photopolymer. Hit a vat of liquid photopolymer with a UV laser beam, and the light-exposed portion will instantly turn into solid piece of plastic, molded into the shape of your 3D-model design. Needless to say, this new technology was big news to inventors, who could now theoretically prototype and test their designs without having to make a huge upfront investment in manufacturing.

Bill Clinton on the saxophone to represent 1992 in the history of 3D printing

In 1992, Bill Clinton played sax on The Arsenio Hall Show—and 3D Systems (Charles Hull’s company) created the world’s first stereolithographic apparatus (SLA) machine, which made it possible to fabricate complex parts, layer by layer, in a fraction of the time it would normally take. That same year, startup DTM produced the world’s first selective laser sintering (SLS) machine—which shoots a laser at a powder instead of a liquid.

These technologies were in their infancy and weren’t perfect; there was some warping in the material as it hardened, and the machines were prohibitively expensive for home inventors, but their potential was undeniable. Decades later, 3D printing history has shown that this potential is still unfolding.

1999–2010: 3D Printing’s Adolescent History

The lead-up to Y2K was thrilling—not just because, in 1999, the original Beverly Hills 90210 entered its last season on the air, but also because the first 3D-printed organ was implanted in humans. Scientists at Wake Forest Institute for Regenerative Medicine printed synthetic scaffolds of a human bladder and then coated them with the cells of human patients. The newly generated tissue was then implanted into the patients, with little to no chance that their immune systems would reject them, as they were made of their own cells.

Medically speaking, this was a great decade in the history of 3D printing. In just 10 short years, scientists from different institutions and startups fabricated a functional miniature kidney, built a prosthetic leg with complex component parts that were printed within the same structure, and bioprinted the first blood vessels using only human cells.

This was also the decade where 3D printing met the open-source movement. In 2005, Dr. Adrian Bowyer’s RepRap Project launched an open-source initiative to create a 3D printer that could basically build itself—or at least print most of its own parts. Its 2008 release, Darwin, is a self-replicating printer that’s able to do just that. Suddenly, people everywhere had the power to create whatever stuff they could dream up on their own. (See also: Kickstarter, which launched in 2009 and has since crowdfunded countless 3D-printing-related projects.)

Drawing of 3D printing history as printer makes its own parts in 2005

By the mid-2000s, the democratization of manufacturing had captured the public’s imagination, as had the idea of mass customization (which, unlike jumbo shrimp, is not actually an oxymoron). The first SLS machine became commercially viable in 2006, which opened the door to on-demand manufacturing of industrial parts. 3D-printing startup Objet (now merged with Stratasys) built a machine that could print in multiple materials, which allowed a single part to be fabricated in different versions, with different material properties.

The intensely creative innovations of the decade were topped off with the launch of collaborative co-creation services such as Shapeways, a 3D-printing marketplace where designers can get feedback from consumers and other designers and then affordably fabricate their products. As the cherry on top, MakerBot hit the scene, providing open-source DIY kits for makers to build their own 3D printers and products. At this point, the barriers to entry for designers and inventors were falling every day.

2011–Present Day: 3D Printing in Its Prime

Today, looking back over just the past few years, it’s hard not to feel like we’re living in the future. Coming soon: 3D-printed jetpacks!

Well, almost. While the price of 3D printers has fallen rapidly and the accuracy of 3D printing has improved, innovators are pushing the envelope in ways that Charles Hull could only dream of. Designers are no longer limited to printing with plastic. Case in point: You can now print the engagement ring of your dreams using gold or silver. Engineers at the University of Southampton have flown the world’s ­first 3D-printed unmanned aircraft, and KOR Ecologic prototyped Urbee, a car with a 3D-printed body that’s built to get 200 mpg on the freeway.

That takes us up to the present day—although by the time this article is published, there will surely have been countless other additive manufacturing breakthroughs happening somewhere in the world. It’s almost impossible to keep up. In the future, our kids will build art projects with their classroom’s 3D printer, and our dentist will be able to call in a prescription for a custom-printed set of dentures. In the meantime, I’ll be watching the news and waiting for my jetpack.

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