When was 3d printing invented

• 3D printing has existed in concept since 1945 and in practice—however primitive—since 1971, proposing a faster and more efficient method of making things.
• Concurrent development of 3D-printing technology down to consumer use and up to enterprise use has realized the benefits of 3D printing in construction, architecture, design, manufacturing, and other industries.
• Continuing advancements in additive manufacturing technology and 3D-printable materials, especially new metal alloys, will contribute to further growth.
• In the future, look for new 3D-printing applications in the aerospace, electronics, medical, energy, and automotive industries.

What technology is 80 years old in theory, 40 years old in practice, and looks brand new? Believe it or not, it’s 3D printing.

Although the craze for desktop 3D printers began around 2010, when companies like MakerBot made investors and the media salivate, those in manufacturing know that the process—applying material onto a substrate to build up an object from a digital 3D design—goes back much further.

The first patent for a process called a Liquid Metal Recorder dates to the 1970s, but the idea is much older. In 1945, a prescient short story by Murray Leinster called “Things Pass By” describes the process of feeding “magnetronic plastics—the stuff they make houses and ships of nowadays—into this moving arm. It makes drawings in the air following drawings it scans with photo-cells. But plastic comes out of the end of the drawing arm and hardens as it comes.” What in Leinster’s day was science fiction soon became a reality.

Layers of Innovation: A 3D-Printing Timeline

Inkjet technology was invented by the Teletype Corporation in the 1960s, a method of “pulling” a drop of material from a nozzle using electronics. It resulted in a device capable of printing up to 120 characters per second and ultimately paved the way for consumer desktop printing.

Teletype later experimented with melted wax as described in a 1971 patent belonging to Johannes F. Gottwald, whose idea was to output an object made of liquified metal that solidified into a shape predetermined by the inkjet’s movement upon each new layer. This device was the Liquid Metal Recorder, which is the basis of rapid prototyping and posited that “printing” could move beyond ink.

Those were the baby steps into a territory called the material extrusion process, where thermoplastic is fed into a heated nozzle and laid upon an object one “slice” at a time in sequence—the same technique used in consumer desktop 3D printers. It’s speedy and cheap, but the materials (essentially rubbery plastic) aren’t good for much beyond model R2-D2s and racing cars.

In 1980, Dr. Hideo Kodama, a lawyer working for a public research institute in the city of Nagoya, Japan, described two methods for Gottwald’s vision using thermoset polymer—a special plastic that hardens in response to light—instead of metal. His research was published in several papers and resulted in his own November 1981 patent, but a complete lack of interest meant the project went nowhere.

Regardless, the seed was sown. Electronics and defense manufacturer Raytheon filed a patent in 1982 to use powdered metal to add layers to an object. In 1984, entrepreneur Bill Masters filed a patent for a process called Computer Automated Manufacturing Process and System, which mentioned the term 3D printing for the first time. Another 1984 patent in France described additive manufacturing using stereolithography, but like Kodama’s work, it was disregarded as having no commercial appeal.

After all these starts, inventor Chuck Hull was the first person to actually build a 3D printer. Based on his patent for curing photopolymers using radiation, particles, a chemical reaction, or lasers, his design sent the spatial data from a digital file to the extruder of a 3D printer to build up the object one layer at a time.

Hull’s company, 3D Systems Corporation, released the world’s first stereolithographic apparatus (SLA) machine, the SLA-1, in 1987. This machine made it possible to fabricate complex parts, layer by layer, in a fraction of the time it would normally take. Hull went on to file more than 60 patents around the technology, becoming the godfather of the rapid prototyping movement and inventing the STL file format that’s still in use today.

During this era, 3D printing was an emerging technology, and materials science wasn’t what it is today. If the product was made of popular polymers, they tended to warp as it set. At the time, the machines also cost hundreds of thousands of dollars, so 3D printing devices were installed only in heavy manufacturing plants—far out of the reach of consumers.

Amid widespread worries that the Y2K bug would shut down computer systems and cause digital Armageddon, 3D printing showed great potential for many industries.

During this period, bioengineering was also making important advances. Scientists at Wake Forest Institute for Regenerative Medicine in Winston-Salem, NC, printed the building blocks of a human urinary bladder using additive manufacturing and coating the organ with cells from the patient so the body was unlikely to reject the 3D-printed bladder.

The next decade saw many advances in medical 3D printing as scientists, technologists and doctors built a miniature kidney, a complex prosthetic leg, and the first bioengineered blood vessels made using donated human cells.

But the entire movement—especially the drive toward consumer use—received a big boost from the open-source paradigm sweeping the information and communications technology (ICT) sector. In 2005, Adrian Bowyer’s RepRap Project launched an open-source initiative to create a 3D printer that could build itself—or at least print most of its own parts.

The 1.0 Darwin machine was the first practical application of RepRap’s philosophy, and suddenly anyone had the power to create whatever they could dream up. Launched around the same time, Kickstarter gave home 3D printing another huge boost as crowdfunded projects sprung up everywhere. Manufacturing was democratizing fast.

Commercial 3D printing finally came to the desktop in 2006 from Objet (now Stratasys), which let users send designs to its device in order to print them from multiple materials with different properties.

Marketplaces and virtual swap meets for trading, sharing, and acquiring designs sprung up everywhere, driving a huge groundswell of interest. When MakerBot arrived in 2009 with open-source DIY kits to design and print just about anything, it made co-founder Bre Pettis into a superstar and gave 3D printing the same cachet as past emerging technologies like social media, e-commerce, and even the Web itself.

Today, additive manufacturing is a mature technology. The consumer interest and robustness of industrial platforms grew throughout the 2010s, as the (often hysterical) MakerBot hype settled down and the industry found a groove. Some think additive will replace traditional CNC and milling manufacturing in the future, and a 2021 Lux Research report predicts that 3D printing will be worth $51 billion by 2030.

The plastic desk toys have been cleared away, leaving the real-world benefits 3D printing offers: everything from printing food to applying multiple materials in the same extrusion process, making the process faster and cheaper.

The range of materials available for 3D printing has also grown exponentially, from bioprinting human tissue and the beginnings of organs tailor-made to patients to crafting products from silver or gold.

The applications are also as varied as inventors’ and engineers’ imaginations. Scientists at the University of Southampton flew the world’s first 3D-printed unmanned aircraft; the makers of a 3D-printed car reached up to 200 mpg with a hybrid gas/electric engine; and a start-up specializing in building ecological living structures came up with a robot-made habitat suitable for living on Mars.

3D printing is being used to build emergency shelter in disaster areas and affordable housing in the developing world. And smart robotics, micromanufacturing, and articulated limb design were combined to to make self-powered prosthetics that give feedback to the brain.

A lot of high-end 3D printing in manufacturing for large structures is done using powder-bed fusion, where various materials can be used in powdered form and fused together using lasers or heat. This is the main process used for metal parts, but it’s expensive and needs very particular infrastructure, making it mainly been feasible for the heavy manufacturing sector.

Nevertheless, additive manufacturing has found a home in many industries. The amount of things from your daily life with some 3D-printed component may surprise you.

Construction is a massive, entrenched field with a legacy of wasteful and dangerous practices, responsible for almost 40% of greenhouse gas emissions. 3D printing could upend it with cleaner methods of creating cement-based products like walls and metal components like rebar—and climate change makes these changes even more crucial.

But speed is another compelling reason to adopt 3D printing. In 2016, a Chinese company 3D printed an entire two-story house in 45 days. That same year, Apis Cor 3D printed the structure of a 400-square-foot house in only 24 hours. Additive technologies can also be deployed in precarious places like mine sites or disaster areas quickly and cheaply; research is ongoing to use materials found onsite where printers are located instead of using more fuel and smoke-belching trucks to ship in materials.

The biggest benefits of 3D printing to architecture seem obvious: designs already exist with every conceivable detail in digital form, so when you want to impress clients or investors, simply click a button and have a gorgeous model on your boardroom table just hours later. Want to change a beam, reorient a window, or add another story? Redo your drawings, rinse, and repeat.

When prototypes have to be made in or near the same factories where final production kicks into gear, it adds precious time to the design and review phase of product development if the designer and manufacturer are located far apart.

With access to 3D printing, it doesn’t matter how far-flung the factory is; a 3D printer in your office or garage can churn out as many prototypes as you need affordably and quickly, no matter how many design tweaks you have to make.

3D printing has the potential to make manufacturing viable in any region or economic climate, rather than only in the manufacturing hubs of the past 30–40 years.

A lot of manufacturing workflows already have the means to retool to additive processes. And as the product-design timeline is compressed further thanks to advances such as generative design and the easier transport and repurposing of design files, prototyping and production will happen faster, all at the speed of digital.

Early consumer 3D printing also promised to help reduce waste through a little less built-in obsolescence. If the broken part in an old vacuum cleaner isn’t in production anymore, but the design file for it still exists on the manufacturer’s website, you only have to send it to your desktop device and watch a quick YouTube video to learn how to install it.

According to Statista, the global additive manufacturing market is expected to grow 17% annually through 2023, as the applications for the technology increases and metal additive becomes more and more viable. And the market for additive manufacturing products and services is expected to almost triple between 2020 and 2026.

Industries such as manufacturing, architecture, and product design are surely reaping the benefits of 3D printing, but some of the greatest growth is expected in the electronics, aerospace, and medical industries. Todd Spurgeon, additive manufacturing project engineer for America Makes, says the electronics industry will see things like custom heat sinks for high-end products, and the aerospace industry will see a larger availability of 3D-printed components that will make their way from higher-end military applications to general aviation. In the medical industry, as more materials are evaluated for medical applications and insurance companies more broadly recognize additive manufacturing, personalized care will become the norm.

“Gone may be the days of the one-size-fits-most expensive prosthetic,” Spurgeon says. “Soon, personalized prosthetics, custom-fit to the user, are expected to be within the reach of the typical American household—even for growing children.”

Beyond the existing technologies, there is much more on the horizon for additive manufacturing. According to Spurgeon, interesting work is being done in the direct-ink-writing and dense paste material extrusion communities. For example, research groups are exploring mixing cured photopolymers with advanced material systems such as ceramics and thermosets, which can ultimately be used for things like printed circuits, lower-cost heat exchangers, and nonbulk ceramics.

“Improvements in this domain could result in a larger insertion of additive manufacturing into high-end applications such as aerospace and automotive, as well as large production processes such as the desalinization of water,” Spurgeon says. Even more opportunities surface when you consider this technology in conjunction with other additive-manufacturing modalities, such as printed circuits integrated into the structure of prosthetics or new form factors for batteries.

The list of 3D-printable materials is growing, as well. “Refractory super alloys will enable innovations in the energy, aerospace, and defence sectors,” Spurgeon says. “More durable polymers are being developed today that are likely to meet flame, smoke, and toxicity testing required by the FAA, which will result in sustainment costs reduction for relevant sectors.”

With new research and developments in additive manufacturing on the rise, the future remains bright for 3D printing—so bright that it’s time to don your new 3D-printed shades.

This article has been updated. It was originally published in September 2014. Dana Goldberg contributed to this article.

About the Author

After growing up knowing he wanted to change the world, Drew Turney realized it was easier to write about other people changing it instead. He writes about technology, cinema, science, books, and more.

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History of 3D printing

In this section, we wanted to trace the history of 3D printing from its inception to the present day, as well as give a forecast regarding the future development of technology.

The first 3d printer was invented by the American Charles Hull, he worked on the technology of stereolithography (SLA), a patent for the technology was issued in 1986. The printer was a fairly large industrial installation. The installation "grew" a three-dimensional model by applying a photopolymerizable material to a moving platform. The basis was a digital model pre-modeled on a computer (3D model). This 3d printer created three-dimensional objects, rising by 0.1-0.2 mm - the height of the layer. Despite the fact that the first device had many disadvantages, the technology has received its application. Charles Hull is also the co-founder of 3dsystems, one of the world's leading manufacturers of industrial 3D printers.

Charles Hull was not the only one to experiment with 3D printing technology, as in 1986 Carl Deckard invented Selective Laser Sintering (SLS). You can learn more about the method in another article, briefly: a laser beam sinters a powder (plastic, metal, etc.), while the mass of the powder is heated in the working chamber to a temperature close to the melting point. The basis is also a digital model pre-modeled on a computer (3D model). After the laser passes through the horizontal layer, the chamber is lowered to the layer height (usually 0.1-0.2 mm), the powder mass is leveled with a special device and a new layer is applied.

However, the most famous and widespread 3D printing method today is layer-by-layer direction (FDM). The idea of ​​technology belongs to Scott Crump (Scott Crump), the patent dates back to 1988. You can learn more about the method in another article, in short: material (usually plastic) is fed from the heated nozzle of the print head using a stepper motor, the print head moves on linear guides along 1 or two axes, and the platform moves along 1 or 2 axes . The basis of the movement is also a 3D model. The molten plastic is laid on the platform along the established contour, after which the head or platform is moved and a new layer is applied on top of the old one. Scott Crump is one of the founders of Stratasys, which is also one of the leaders in the production of industrial 3D printers.

All the devices described above belonged to the class of industrial devices and were quite expensive, so one of the first 3d Dimension printers from Stratasys in 1991 cost from 50 to 220 thousand US dollars (depending on the model and configuration). Printers based on the technologies described above cost even more and until very recently, only a narrow circle of interested specialists knew about these devices.

Everything began to change since 2006, when the RepRap project (from the English Replicating Rapid Prototyper - a self-replicating mechanism for rapid prototyping) was founded, with the goal of creating a self-copying device, which was a 3D printer working on technology FDM (layer by layer deposition). Only, unlike expensive industrial devices, it looked like a clumsy invention made from improvised means. Metal shafts serve as a frame, they also serve as guides for the print head. driven by simple stepper motors. The software is open source. Almost all connecting parts are printed from plastic on the 3D printer itself. This idea originated among English scientists and aimed at spreading available additive technologies so that users can download 3D models on the Internet and create the necessary products, thus minimizing the production chain.

Leaving aside the ideological component, the community (which exists and develops to this day) managed to create a 3d printer accessible to the "ordinary person". So a set of unprinted parts can cost around a couple of hundred US dollars and a finished device from $500. And even though these devices looked unsightly and were significantly inferior in quality to their industrial counterparts, all this was an incredible impetus for the development of 3D printing technology.
As the RepRap project developed, 3D printers began to appear, taking as a basis the base laid down by the movement in technical and, sometimes, ideological terms (for example, commitment to the concept of open source - OpenSource). The companies that made printers tried to make them better both in terms of performance, design and user experience. The first RepRap printers cannot be called a commercial product, since it is not so easy to manage (and even more so to assemble) and it is not always possible to achieve stable work results. Nevertheless, companies tried to close the more than significant gap in quality, leaving a significant gap in cost whenever possible.

First of all, it is worth mentioning the MakerBot company, which started as a startup, took RepRap ideas as a basis and gradually turned them into a product of a new quality.

Their flagship product (and in our opinion the best to this day) remains the MakerBot Replicator 2 3D printer. The model was released in 2012 and later discontinued, but remains one of the most popular 3D printer models to this day " personal" segment (according to 3dhubs). The word "personal" is in brackets because this printer, which cost $2,200 at the time of release, was (and is) primarily used for business purposes, but falls into the personal segment due to its cost. This model differs from its progenitors (RepRap), being, in fact, a finished commercial product. Manufacturers abandoned the concept of OpenSource, closing all sources and software codes.

In parallel with the release of equipment, the company actively developed the Thingiverse resource, which contains many models for 3d printing, available for download for free. During the development of the first printer and beyond, the community has helped the company a lot, testing the product and offering various upgrades. After the release of the Replicator 2 (and the closure of development), the situation has changed. You can learn more about the history of MakerBot and other companies and people associated with 3d printing by watching the film Print the legend.

This film also highlights the history of Formlabs, one of the first companies to launch an affordable 3D printer based on SLA (Strereolithography) technology. The company raised funds for the first FORM 1 model through crowdfunding, encountered production difficulties, but eventually released an affordable and productive 3D printer, closing the quality gap described above.

And although the 3D printers described above were far from perfect, they laid the foundation for the development of affordable 3D printing technology, which continues to this day. At the moment, the quality of FDM and SLA printers is increasing, but there is no significant price reduction, rather, on the contrary, it is growing slightly. Along with FDM and SLA, many companies are developing in the field of powder sintering (SLS), as well as metal printing. Despite the fact that such printers cannot be called affordable, their price is much lower in comparison with analogues from the professional segment. It is also worth noting the development of the line of materials, in addition to the standard ABS and PLA plastics, today many different materials are used, including nylon, carbon fiber and other durable and refractory materials.

Personal 3d printers of today are very close to professional devices, the development of which also does not stop. In addition to the "founders" of the technology (Stratasys, 3dsystems), many small companies specializing in industrial 3D printing technologies (metal in particular) have emerged. 3D printing is also attracting the attention of large corporations, which, with varying degrees of success, are striving to take their place in a growing market. Here it is worth highlighting HP, which recently released the HP Jet Fusion 3D 4200 model, which has gained popularity among 3d printing professionals (as of 2018, it is at the top of the ranking of professional 3D printers in the quarterly reports of the 3dhubs portal).

However, 3D printing technologies are developing not only in breadth, but also in depth. One of the main disadvantages of 3D printing, compared to other production methods, is the low speed of creating models. A significant advance in terms of accelerating 3D printing was the invention of CLIP technology by CARBON, printers operating on this technology can produce models 100 times faster than classic SLA technology.

There is also a constant expansion of the range, properties and quality of materials and post-processing of products. All this accelerates the transition to the use of 3d printers in production, and not just as prototyping devices. Today, many large and not only companies and organizations are closely using a 3D printer in their production chain: from consumer goods manufacturers NIKE and PUMA to BOEING and SPACE X (the latter prints engine parts for its rockets that could not be made in any other way) .

In addition to the "classic" scope of 3D printing, today more and more often you can see news about how a house or some organ (or rather, a small part of it) was printed on a 3D printer from bio-material. And this is true, several companies around the world are testing or already partially using 3D printing in the construction of buildings and structures. This mainly concerns the contour pouring of walls (similar to the FDM method) with a special composite concrete mixture. And in Amsterdam there is a 3D printed bridge project and this list will only expand over time, since the use of 3D printing in construction can significantly reduce costs and increase the speed of work at certain stages.
With regards to medicine, here 3D printing also finds application, but at the moment it is not printing organs, but rather the use of technology in prosthetics (of various kinds) and bone replacement. Also, 3D printing technology is widely used in dentistry (SLA technology). Regarding the printing of organs, this is still far in the future, at the moment bio-3D printers are experimental facilities in the early stages, the success of which is limited to printing a few limited-viable cells.

Looking to the future, it is safe to say that 3D printing technology will expand both in breadth and depth, improving technology, speeding up processes, improving quality and improving material properties. 3D printers will increasingly replace old methods in production chains of various scales, and world production, due to this, will move towards the “on demand” scheme of work, increasing the degree of product customization. Perhaps someday, 3D printers will be widely used at the household level for the production of necessary things (the dream and goal of the RepRap movement), but this requires not only the development of technology, but also a paradigm shift in social thinking, as well as the development of a powerful design ecosystem ( 3d modeling) products (which is often forgotten).

3d printing of houses (and other structures) will no doubt also develop, reducing costs and production time, which, together with the development of new approaches in architecture and urban planning (such as modular construction and the prefabricated method), will give a tangible impetus to development the industry as a whole.

Biological 3D printers will be an important tool in scientific research. However, before they appear in hospitals and clinics, where they will print new organs, it is still very, very far away (in fact, this is science fiction).

A Brief History of 3D Printing / Sudo Null IT News

3D printing was born 40 years ago and opened up amazing possibilities for creating various models in prototyping, dentistry, small-scale production, customized products, miniatures, sculptures, mock-ups and much more.

Who invented the 3D printer? What was the first 3D printing technology? And what was the first thing they printed on a 3D printer? Let's open the veil of secrecy over a huge number of interesting facts and stories about the emergence of technology. 9. , which layer-by-layer formed a rigid object from a photopolymer resin with the help of UV illumination.

In fact, he described a modern photopolymer printer, but failed to provide the necessary data for patent registration within a year, as required by patent law, and abandoned the idea. However, in many sources it is he who is called the inventor of 3D printing technology.

In 1983, three engineers - Alain Le Meho, Olivier de Witt and Jean-Claude André from the French National Center for Scientific Research, in an attempt to create what they called a "fractal object", came up with the idea of ​​using a laser and a monomer, which, under the influence of a laser, turned into a polymer. They applied for a patent 3 weeks before the American Chuck Hal. The first object created on the apparatus was a spiral staircase. Engineers called the technology stereolithography, and the patent was approved only in 1986 year. Thanks to them, the most famous file format for 3D printing is called STL (from the English stereolithography). Unfortunately, the institute did not see any prospects in the invention and its commercialization, and the patent was not used to create the final product.

Laser Stereolithography At the same time, Chuck Hull was working for a company that made countertop and furniture coatings using UV lamps. The production of small plastic parts for prototyping new product designs took up to two months. Chuck came up with the idea to speed up this process by combining UV technology and layering thin plastic. The company gave him a small laboratory for experiments, where he worked in the evenings and weekends. As a material, Chuck used acrylic-based photopolymers that harden under the influence of ultraviolet radiation. One night, after months of experimentation, he was finally able to print a sample and was so elated by luck that he walked home. Chuck showed his invention to his wife. It was an eyewash cup, more like a communion cup, according to the wife. It is considered officially the first 3D printed model in the world and is still kept by the Hull family, and after their death will be transferred to the Smithsonian Research Institute in Washington.

Chuck Hull filed a patent on August 8, 1984 and was approved on March 11, 1986. The invention was called "Apparatus for creating three-dimensional objects using stereolithography." Chuck founded his own company - 3D Systems, and in 1988 launched the first commercial 3D printer - the SL1 model.

Another new 3D printing method appeared around the same time as SLA printing. This is selective laser sintering SLS , which uses a laser to turn loose powder (instead of resin) into a solid material. Carl Deckard , a young undergraduate student at the University of Texas at Austin, and his teacher Prof. Dr. Joe Beeman were involved in the development. And the idea belonged to Karl. In 1987, they co-founded Desk Top Manufacturing (DTM) Corp. However, it will take at least another 20 years for SLS 3D printing to become commercially available to the consumer. In 2001, the company was bought out by Chaka Hull, 3D Systems.

Surprisingly simpler and cheaper 3D printing is FDM (Fused Deposition Modeling) was created after SLA and SLS, in 1988. Its author was aeronautical engineer Scott Crump . Crump was looking for an easy way to make a toy frog for his daughter and used a hot glue gun to melt the plastic and pour it into layers. Thus, the idea of ​​FDM 3D printing was born, a technology for layer-by-layer deposition of a plastic thread. Crump patented a new idea and co-founded Stratasys with his wife Lisa Crump at 1989 year. In 1992, they launched their first production product, the Stratasys 3D Modeler, on the market.

Milestone 2: 3D printing becomes available

The first machines built by 3D Systems and Stratasys were bulky and expensive. The cost of one was hundreds of thousands of dollars, and only the largest companies in the automotive and aerospace industries could use them. Printers had a lot of limitations and could not be widely used. The development of technology has been very slow. 20 years later, in 2005, the RepRap (Replicating Rapid Prototyper) project appeared - a self-replicating mechanism for rapid prototyping.

It was inspired by Dr. Adrian Bauer from the University of Bath in the UK. The goal of the project was to "self-copy", replicate the components of the 3D printers themselves. In the photo, all the plastic parts of the "child" are printed on the "parent". But in fact, a group of enthusiasts led by Adrian were finally able to create the budget 3D printer for home or office use .

The idea was quickly taken up by three New York technologists and started a desktop FDM printer company, MakerBot. This was the second turning point in the modern history of 3D printing.

Other technologies were being developed in parallel. One of them is bioprinting. Thomas Boland of Clemson University has patented the use of inkjet printing to 3D print living cells, making it possible to print human organs in the future. Dozens of companies around the world conduct research in this area.

Another important use of the new technology was the creation of prostheses, first conventional, and then bionic. In 2008, the first printed prosthesis was successfully transplanted into a patient and allowed him to return to a normal lifestyle.

Another milestone has been the emergence of open source print files on the Internet. Websites www.thingiverse.com, www.myminifactory.com and many others contain both free and paid files for 3D printing. Users share models online and print them themselves.

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