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When Was 3D Printing Invented

3D printing’s come a long way since its start, but when was that? If, like most people, you think of 3D printing as a new technology, you’re in for a surprise. While it’s true that the industry has made massive leaps forward in recent years, it’s all building on a base that goes back almost a century.

Since those early days, 3D printing has come to refer to a variety of specific technologies, some of the most common beingfused deposition modeling (FDM),stereolithography (SLA), andselective laser sintering (SLS). The first peaks of 3D printing came when each of these technologies was developed, patented, and trademarked.

The next leap forward came when these patents began expiring and more people could experiment with the technology. It’s this period of time, when FDM printing exploded in popularity, that many people mistakenly think of as the origins of 3D printing.

But which technology came first and when? Here’s our guide on the history of when 3D printing was invented.

1940s-70s: The Idea Murray Leinster, posing like a man who can see the future (Source: DC Writers' Home)

The idea of 3D printing dates all the way back to 1945 when sci-fi writer Murray Leinster first described the technology with surprising accuracy in his short story “Things Pass By”. He envisioned a machine that could take his drawings and replicate them with a moving arm, using melted plastic to form 3D objects. Now somebody just needed to make his idea a reality. It took a while for these ideas to move beyond fiction, but in 1971 we had a breakthrough with Johannes F. Gottwald filing a patent for a Liquid Metal Extruder. He envisioned this extruder to be just like an office printer, only it would print 3D objects with metal rather than words with ink. Sounds an awful lot like FDM printing, huh? Unfortunately, Gottwald wasn’t able to make the technology a reality before the patent expired, and he’s often been forgotten as one of the fathers of 3D printing. David Jones invented the concept of SLA as a joke! (Source: Conor Lawless via The Washington Post) With the first patent yielding no results, the world of 3D printing remained nothing more than ideas. It’s at this point that David Jones came along with his popular column “Daedalus” in the magazine New Science. Jones’ columns were popular must-reads each week in the new issues of New Science where he would predict the future. Okay, so the articles were satire that jokingly suggested how futuristic technologies could work. Still, his ideas were impressive. He had a firm grasp of physics, chemistry, and engineering and his humorous portrayal of science inspired generations of young thinkers to imitate his creativity in their labs. His jokes often hit close to home (including ideas that inspired future Nobel Prize winners), but most importantly for our history was one 1974 article in which he perfectly describes the stereolithography process. This was a full decade before Chuck Hull came along to make SLA printing a reality. (We’ll get to Chuck in a moment.) Unfortunately for Jones, he’s never credited with this idea, since his suggestion was tongue-in-cheek, but he still deserves a mention in the long history of 3D printing evolving from idea to reality. 1981-1984: A Lack of Funding Dr. Hideo Kodama introduced rapid prototyping but couldn't finance it (Source: GM Media Archives) The 1980s are when 3D printing ideas became reality. Unfortunately, the first half of the decade was filled with promising patents from investors that either ran out of money or were financed by groups that failed to see any commercial applications that could recoup their investment. The first prominent patent of the decade was filed by Japanese inventor Dr. Hideo Kodama in 1981. He described his invention as a “rapid prototyping device”. More importantly, he was the first person to ever apply for a patent that described a laser beam curing process. Sadly, his patent never went through as he abandoned financing the patent one year after filing it. Next up was a trio of French inventors who came forward with a patent in 1984. Jean-Claude André, Olivier de Witte, and Alain le Méhauté were colleagues working for French technology firm Alcatel and the French National Center for Scientific Research (CNRS). They followed Dr. Kodama’s focus of a “rapid prototyping device” to produce complex parts. De Witte had previous experience working with lasers to cure solids and viewed this technology as the best option to employ in rapid prototyping. Unfortunately, their employers at Alcatel and the CNRS weren’t interested in the technology and the trio was unable to fund their project after applying for the patent, forcing them to abandon the idea. 1984-1988: The Invention of Stereolithography The SLA 1 creates an entirely new commercial market (Source: Sculpteo) 1984 beat Orwell’s expectations and proved to be a breakthrough year for the emerging technology of 3D printing. Across the pond from the French trio, the US Patent Office granted Bill Masters the first ever approved patent for any form of technology that now falls under the umbrella of 3D printing. Fun fact, Masters is also the inventor of the kayak after filling over 30 patents for its design! Less fun is the fact that Masters ultimately abandoned his work on 3D printing (after producing a working machine in the early 1990s) to focus on his growing kayak business. This is where Charles “Chuck” Hull, the father of 3D printing, comes in. In 1984 he filed a patent for a stereolithography system, only three weeks after the trio in France filed for theirs. Hull’s idea was to use his company’s UV lamps to cure photosensitive resin layer by layer to create small custom parts. His patent was approved in 1986 and he started his own company: 3D Systems. Two years later they released the groundbreaking first commercially available 3D printer – the SLA-1 – in 1988. Beyond the spectacular machine itself, Hull also developed the STL file format and digital slicing process that remain crucial to the 3D printing industry to this day. 1988-1993: The Other Methods Stratasys' first operating 3D printer used their trademarked FDM technology (Source: Stratasys via TCT Magazine) By now you’ve figured out that SLA printing was the first to hit the market, but FDM and SLS printing weren’t far behind. Both had their first approved patents filed in 1988. Selective laser sintering was first invented down in Texas by university student Carl Deckard. Only an undergrad at the time, his printer was rudimentary and could only produce basic pieces of plastic. Still, the idea was there and the execution soon developed into the SLS printing we know today. Also filed in 1988 was the patent for a fused deposition modeling machine by Scott Crump, a co-founder of Stratasys. It took until 1992 for the patent to be granted but Stratasys was quick to grab the lead in 3D printing with their new FDM machines. This period ends with what may cause some confusion over how long 3D printing’s been around. In 1993, MIT professor Emanuel Sachs introduced the term “3D printing” to the lexicon, and the industry formerly known as “rapid prototyping” never looked back. 2000s: The Market Comes to the Masses The Machine Self Replication movement helped bring 3D printing to the masses (Source: RepRap) Now comes the era when most people learned about 3D printing. A variety of events are responsible for this proliferation, starting with Zcorp introducing a multicolor 3D printer in 2000. They repurposed the inkjet printing technology common to household full-color printers, adapting it to print colorful 3D objects. While it hasn’t evolved into an industry standard, multicolor printing remains a popular fascination of some. The next important development came in 2004 with Adrian Bowyer starting the RepRap movement. His goal was to use 3D printers to manufacture more 3D printers, thus creating self-replicating machines. The idea was a few years away from reality but quickly gained popularity in the 3D printing community, notably including Prusa Research founder Josef Průša. Reprap self-replicating machines have been heralded as the future, with some believing they could start a second industrial revolution, bring an end to global capitalism, and save the environment. Nothing like reaching for modest goals, huh? The industry took another major leap forward in 2006, with Objet introducing the first commercially available desktop 3D printer, ushering in a new era of at-home hobbyists being able to experiment with 3D printing. But what fun would that be if they couldn’t exchange designs and print ideas? Well, that market gap was quickly filled by Thingiverse, which launched in 2008. While all this was occurring in the hobbyist and consumer segments of 3D printing, Cornell University achieved a scientific breakthrough by introducing the first 3D food printer in 2011. The technological advances quickly caught many corporate eyes and several major companies introduced 3D printing divisions in the following years, including both GE and HP in 2016. Patents End Formlabs' Kickstarter campaign revolutionized hobbyist resin 3D printing (Source: Formlabs via Kickstarter) The 2000s were also the end of an era as the patents that launched the dominant technologies in the 80s and 90s expired. The first patent to go was for SLA technology in 2009, the one Chuck Hull had filed to bring his SLA-1 printer to market. Next to pass its best-before date was Stratasys’ patent for FDM technology, also in 2009. Interestingly, although the patent expired, Stratasys still has a trademark on the term FDM, which forces some of their competitors to either make a deal with them to use the terminology that’s popular with consumers and media (including us here at All3DP), or use the less common term “fused filament fabrication” (FFF). With these patents ending in 2009, competitors were quick to the market with new DIY printer kits. These kits were available at a far lower cost than before, ignoring the commercial industrial market Stratasys had focused on. Instead, manufacturers aimed to connect with individual consumers and the burgeoning hobbyist community congregating online around Thingiverse, Objet, and Reprap technology. The most notable DIY kit providers were BfB Rapman and Makerbot, both introducing their FDM products in 2009 shortly after the patent expirations. It took a bit longer for SLA printers to attract hobbyist attention, but Formlabs was able to break through to this market in 2012 when they launched the first realistically affordable SLA printer for consumers, the Form 1, via a Kickstarter campaign. The era of patents came to end almost entirely in 2014 with the expirations of SLS patents. Now the technology of all three major forms of 3D printing is in the public domain, free to be experimented with and improved upon. Health 3D Printing 3D printed prosthetic limbs improve countless lives (Source: William Root via Behance) While all these patents were ending, there were also major breakthroughs in labs around the world focusing on medical 3D printing. The first headline-grabbing medical breakthrough was way back in 2000 when scientists at Wake Forest successfully 3D printed a human kidney, though it would take another 13 years before a successful human transplant took place. 2008 saw the first 3D printed prosthetic limbs that could be printed as is, without requiring any further assembly after coming off the print bed. This development was celebrated by many and has helped improve countless lives with its accuracy, customization ability, and lower costs. The trend of improving medicine continued in 2012 with the first prosthetic jaw being printed. Unlike the kidney, there was no delay with this technology as it was successfully implanted into a human patient that same year. 2012-2013: Mainstream & Controversy President Barack Obama advocated for 3D printing (Source: Chuck Kennedy via Obama White House Archives) With Stratasys’ patents expiring, in recent years the company has turned to a new strategy to dominate the 3D printing industry: acquiring its competitors. In 2012 and 2013, deals were reached for Stratasys to buy Objet and Makerbot, groundbreaking companies we previously noted for their roles in the history of making 3D printing accessible to hobbyists. This wasn’t the only controversy-grabbing headline in 2013. 3D printing also burst into the mainstream after the first gun was successfully 3D printed, prompting many a debate when the designs were made available online. Fortunately, this controversy wasn’t enough to slow 3D printing’s momentum, which only exploded more after Barack Obama embraced the technology and discussed 3D printing in his 2013 State of the Union address. 3D printing was officially mainstream, with the technology and terminology entering the public lexicon. 2014-Present: The Future Is Now NASA's 3D printing is out of this world (Source: Made In Space, Inc. via NASA) 2014 saw 3D printing literally leave this world with NASA taking a printer into space and successfully using it on the International Space Station. What had long been theorized in sci-fi became a reality and potentially signals the future of the 3D printing industry. Back on Earth, multiple companies worked to not be outdone by NASA and space, most notably in the medical field. The first came in 2015 with Cellink announcing the first commercial sale of “bioink” that allows the 3D printing of body tissue. This was quickly followed in 2016 with a Dublin lab announcing that they could print human bone or cartilage. While it may feel less glamorous, an equally major milestone arrived in 2018 with the first family moving into a fully 3D printed home. While originally envisioned as a cost-effective way to build affordable homes around the world, the technology continues to evolve with homes recently being built for luxury buyers. Between these various achievements, it’s safe to say the future has arrived. Tomorrowland The future of food doesn't involve grandpa's farm (Source: Novameat via FoodNavigator) We’ve listed many impressive advancements from recent years, but it’s important to remember that most are only in the early stages of development. They have a long way to go before reaching their full potential, meaning that there will be many more technological breakthroughs to amaze us. We can’t predict where 3D printing goes from here, but we can marvel at the amazing journey the futuristic technology’s already been on.

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