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Open Source

Has Apple Abandoned CUPS, Linux's Widely Used Open-Source Printing System? Seems So (theregister.com) 120

The official public repository for CUPS, an Apple open-source project widely used for printing on Linux, is all-but dormant since the lead developer left Apple at the end of 2019. From a report: Apple adopted CUPS for Mac OS X in 2002, and hired its author Michael Sweet in 2007, with Cupertino also acquiring the CUPS source code. Sweet continued to work on printing technology at Apple, including CUPS, until December 2019 when he left to start a new company. Asked at the time about the future of CUPS, he said: "CUPS is still owned and maintained by Apple. There are two other engineers still in the printing team that are responsible for CUPS development, and it will continue to have new bug fix releases (at least) for the foreseeable future." Despite this statement, Linux watcher Michael Larabel noted earlier this week that "the open-source CUPS code-base is now at a stand-still. There was just one commit to the CUPS Git repository for all of 2020." This contrasts with 355 commits in 2019, when Sweet still worked at Apple, and 348 the previous year. We asked Apple about its plans for CUPS and have yet to hear back.
Canada

Many Amazon Returns Are Just Destroyed or Sent to Landfills (www.cbc.ca) 76

What happens when we return items to Amazon? "Perfectly good items are being liquidated by the truckload — and even destroyed or sent to landfill," according to Marketplace, an investigative consumer program on Canada's public TV: Experts say hundreds of thousands of returns don't end up back on the e-commerce giant's website for resale, as customers might think. Marketplace journalists posing as potential new clients went undercover for a tour at a Toronto e-waste recycling and product destruction facility with hidden cameras. During that meeting, a representative revealed they get "tons and tons of Amazon returns," and that every week their facility breaks apart and shreds at least one tractor-trailer load of Amazon returns, sometimes even up to three to five truckloads...

To further investigate where all those online returns end up, Marketplace purchased a dozen products off Amazon's website — a faux leather backpack, overalls, a printer, coffee maker, a small tent, children's toys and a few other household items — and sent each back to Amazon just as they were received but with a GPS tracker hidden inside... Of the 12 items returned, it appears only four were resold by Amazon to new customers at the time this story was published. Months on from the investigation, some returns were still in Amazon warehouses or in transit, while a few travelled to some unexpected destinations, including a backpack that Amazon sent to landfill...

Marketplace asked Amazon what percentage of its returns are sent to landfill, recycling or for destruction. The company wouldn't answer. A television investigation in France exposed that hundreds of thousands of products — both returns and overstock — are being thrown out by Amazon. As a result of public outcry, a new French anti-waste law passed earlier this year will force all retailers including e-giants like Amazon to recycle or donate all returned or unused merchandise. Shortly after the show aired in 2019, Amazon also introduced a new program in the U.S. and U.K. known as Fulfillment by Amazon Donations, which Amazon says will help sellers send returns directly to charities instead of disposing of them. No such program exists in Canada.

Wireless Networking

Smart Dust Is Coming. Are You Ready? (forbes.com) 101

"Imagine a world where wireless devices are as small as a grain of salt," writes futurist Bernard Marr in Forbes, describing a technology being researched by companies like IBM, General Electric, and Cisco. "These miniaturized devices have sensors, cameras and communication mechanisms to transmit the data they collect back to a base in order to process.

"Today, you no longer have to imagine it: microelectromechanical systems (MEMS), often called motes, are real and they very well could be coming to a neighborhood near you. Whether this fact excites or strikes fear in you it's good to know what it's all about." Outfitted with miniature sensors, MEMS can detect everything from light to vibrations to temperature. With an incredible amount of power packed into its small size, MEMS combine sensing, an autonomous power supply, computing and wireless communication in a space that is typically only a few millimeters in volume. With such a small size, these devices can stay suspended in an environment just like a particle of dust. They can:

- Collect data including acceleration, stress, pressure, humidity, sound and more from sensors

- Process the data with what amounts to an onboard computer system

- Store the data in memory

- Wirelessly communicate the data to the cloud, a base or other MEMs

Since the components that make up these devices are 3D printed as one piece on a commercially available 3D printer, an incredible amount of complexity can be handled and some previous manufacturing barriers that restricted how small you can make things were overcome. The optical lenses that are created for these miniaturized sensors can achieve the finest quality images.

The potential of smart dust to collect information about any environment in incredible detail could impact plenty of things in a variety of industries from safety to compliance to productivity. It's like multiplying the internet of things technology millions or billions of times over.

Power

Thin-Skinned Solar Panels Printed With Inkjet (phys.org) 28

An anonymous reader quotes a report from Phys.Org: Solar cells can now be made so thin, light and flexible that they can rest on a soap bubble. The new cells, which efficiently capture energy from light, could offer an alternative way to power novel electronic devices, such as medical skin patches, where conventional energy sources are unsuitable. Until now, ultrathin organic solar cells were typically made by spin-coating or thermal evaporation, which are not scalable and which limit device geometry. This technique involved using a transparent and conductive, but brittle and inflexible, material called indium tin oxide (ITO) as an electrode. To overcome these limitations, the team applied inkjet printing. "We formulated functional inks for each the layer of the solar cell architecture," says Daniel Corzo, a Ph.D. student in Baran's team.

Instead of ITO, the team printed a transparent, flexible, conductive polymer called PEDOT:PSS, or poly(3,4-ethylenedioxythiophene) polystyrene sulfonate. The electrode layers sandwiched a light-capturing organic photovoltaic material. The whole device could be sealed within parylene, a flexible, waterproof, biocompatible protective coating. [...] After optimizing the ink composition for each layer of the device, the solar cells were printed onto glass to test their performance. They achieved a power conversion efficiency (PCE) of 4.73 percent, beating the previous record of 4.1 percent for a fully printed cell. For the first time, the team also showed that they could print a cell onto an ultrathin flexible substrate, reaching a PCE of 3.6 percent.
The research has been published in the journal Advanced Materials Technologies.
Medicine

Scientists Are 3D Printing Miniature Human Organs To Test COVID-19 Drugs (theweek.com) 21

Scientists are conducting preliminary tests of COVID-19 drugs using 3D printed human organs, eliminating the need to perform tests on animals, or, of course, humans. The Week reports: For example, Anthony Atala, the director of the Wake Forest Institute for Regenerative Medicine, and his team are using 3-D printers to create tiny replicas of human organs, including miniature lungs and colons, which are particularly affected by the coronavirus. They send them overnight for testing at a biosafety lab at George Mason University. The idea predated the coronavirus -- Atala said he never thought "we'd be considering this for a pandemic" -- but it could come in handy and help expedite the experimental drug process, especially since Atala said his Winston-Salem, North Carolina-based lab can churn out thousands of printed organs per hour. "The 3-D models can circumvent animal testing and make the pathway stronger from the lab to the clinic," said Akhilesh Gaharwar, who directs a lab in the biomedical engineering at Texas A&M University. Further reading: The New York Times
Printer

KFC Tests 3D-Printed Chicken Nuggets In Russia (businessinsider.com) 98

KFC announced that it will test chicken nuggets made with 3D bioprinting technology in Moscow, Russia, this fall. Business Insider reports: The chicken chain has partnered with 3D Bioprinting Solutions to create a chicken nugget made in a lab with chicken and plant cells using bioprinting. Bioprinting, which uses 3D-printing techniques to combine biological material, is used in medicine to create tissue and even organs. The 3D-printed chicken nuggets will closely mimic the taste and appearance of KFC's original chicken nuggets, according to the press release. KFC expects the production of 3D-printed nuggets to be more environmentally friendly than the production process of its traditional chicken nuggets. The fall release will mark the first debut of a lab-grown chicken nugget at a global fast-food chain like KFC.
Transportation

Porsche Found a Way To 3D-Print Lightweight Pistons That Add More Horsepower (thedrive.com) 67

An anonymous reader quotes a report from The Drive: With select bucket seats from the 911 and 718 as well as various classic car parts -- including clutch release levers for the 959 -- already being produced using 3D printing, Porsche is more familiar with the technology than most. Now, the automaker is taking things even further, 3D printing entire pistons for its most powerful 991-gen 911, the GT2 RS. Although it doesn't sound like these 3D-printed pistons will actually be found in many production Porsches anytime soon, they represent a bit more than just an engineering flex. There are some very real mechanical benefits here. For starters, they weigh 10 percent less than their forged equivalents and feature an integrated and closed cooling duct in the piston crown that's apparently unable to be reproduced using traditional manufacturing methods. The decrease in weight and temperature results in an extra 30 horsepower on top of the GT2 RS's already mighty 700.

Produced in partnership with German auto part maker Mahle and industrial machine manufacturer Trumpf, the pistons are made out of a high-purity metal powder developed in-house by the former using the laser metal fusion process, essentially a laser beam that heats and melts the metal powder into the desired shape. The end result is then validated using measurement technology from Zeiss, the German optics company best known for camera lenses.

Businesses

WeWork Founder Warned Staff in 2016: 'You Do Not Get a Chance Like This Again' (bloomberg.com) 51

To many of its employees, WeWork was much more than a job. Adam Neumann, the co-founder and former chief executive officer, kept workers motivated by invoking a higher calling to community-building and promising a once-in-a-lifetime opportunity. From a report: "None of us want to look back and say, 'I could have done more,'" Neumann said in a 2016 staff meeting, captured in hours of tape obtained by Bloomberg. "That's not acceptable. You do not get a chance like this again." In this episode of Foundering, a former WeWork executive assistant, Cody Quinn, describes the tumultuous experience working inside WeWork's New York headquarters. According to Quinn, most employees worked until near-burnout, then were rewarded with trips to Summer Camp and Summit, WeWork's famously raucous companywide parties. And she details the strange things she saw at the office: an executive smashing a printer on the floor, 2 a.m. meetings with Neumann and an elaborate technique designed to lure investors called "activating the space."
Biotech

3D-Printed Plant-Based Steaks Could Arrive In 2021 (engadget.com) 153

In 2021, Israeli startup Redefine Meat plans to launch a 3D printer that will allow customers to produce plant-based flank steak at home. Engadget reports: Redefine Meat says that through 3D printing, it's able to create plant-based meat with the same "appearance, texture and flavor of animal meat," according to its website. Texture specifically seems to be the 3D printer's hallmark achievement. "You need a 3D printer to mimic the structure of the muscle of the animal," Redefine Meat CEO Eshchar Ben-Shitrit told Reuters.

3D printing differs from other methods companies have used for reproducing meat taste and texture. Both Impossible Foods and Beyond Meat use combinations of plant-based proteins, oils and binders, like methylcellulose and potato starch, to achieve a realistic texture for their ground beef and patties -- though the texture of ground beef is arguably easier to achieve than that of steak. Atlast Food uses mushroom fibers to emulate animal tissue in its meatless bacon.

Printer

80,000 Printers Are Exposing Their IPP Port Online (zdnet.com) 56

An anonymous reader quotes a report from ZDNet: In a report published earlier this month, security researchers from the Shadowserver Foundation, a non-profit organization focused on improving cyber-security practices across the world, have published a warning about companies that are leaving printers exposed online. More specifically, Shadowserver experts scanned all the four billion routable IPv4 addresses for printers that are exposing their IPP port. IPP stands for "Internet Printing Protocol" and, as the name suggests, is a protocol that allows users to manage internet-connected printers and send printing jobs to printers hosted online. The difference between IPP and the multiple other printer management protocols is that IPP is a secure protocol that supports advanced features such as access control lists, authentication, and encrypted communications. However, this doesn't mean that device owners are making use of any of these features.

Shadowserver experts said they specifically scanned the internet for IPP-capable printers that were left exposed without being protected by a firewall and allowed attackers to query for local details via the "Get-Printer-Attributes" function. In total, experts said they usually found an average of around 80,000 printers exposing themselves online via the IPP port on a daily basis. The number is about an eighth of all IPP-capable printers currently connected online. A normal scan with the BinaryEdge search engine reveals a daily count of between 650,000 and 700,000 devices with their IPP port (TCP/631) reachable via the internet.
What are the issues with not securing the IPP port? Shadowserver experts say this port can be used for intelligence gathering, since many of the printers scanned returned additional info about themselves, such as printer names, locations, models, firmware, organization names, and even Wi-Fi network names.

"To configure IPP access control and IPP authentication features, users are advised to check their printers' manuals," adds ZDNet. "Most printers have an IPP configuration section in their administration panel from where users can enable authentication, encryption, and limit access to the device via access lists."
Idle

Can Stadiums Replace Fans With Cardboard Cutouts and Avatars? (thehustle.co) 167

A new article on The Hustle tries to explain why sports stadiums are suddenly full of fans made out of cardboard: Back in March, a German filmmaker and soccer aficionado named Ingo Müller was sitting at home, complaining to his wife about not being able to attend the matches of his favorite club team, Borussia Mönchengladbach. "She said, 'If you're really pissed about not going to the stadium, just take a photo and send it there,'" Müller tells The Hustle. So Müller contacted a local printer and a team to build a portal where fans could upload photos of themselves. For a sum of €19 ($21 USD), he'd print out each photo on a cardboard cutout and install it in the stadium, with the permission of club owners. Originally, he anticipated between 500 and 2k orders. So far, 21k+ people have purchased a cutout.

All the proceeds go back to charities associated with the team, including a portion to fans impacted by the pandemic. Now, Müller has received inquiries from sports teams in "at least 15 countries," including Sweden, Colombia, China, Russia, Serbia, and Austria, about setting up their own cardboard fan project. He's even decided to apply for a Guinness World Record. And Müller isn't the only one tapping into the trend. Cardboard fans are lining the stands at baseball games in Taiwan and South Korea, and soccer matches all over Europe. Shaquille O'Neal's cardboard likeness even turned up for a soccer match in Northampton, England. At least 8 Premiere League teams have been in talks to fill their stands with cutouts. Turkish soccer clubs are trying a model with two price tiers: 123 liras ($18) for season ticket holders and 149 liras ($22) for regular fans...

For sports teams trying to recoup ticket revenue, cardboard fans aren't the only idea in the mix. Using AR, an Iceland-based company, OzSports, is trying to project avatars of fans into seats. In Denmark, one team brought 10k fans into its stadium with Zoom. In South Korea, a soccer team filled its fan seats with actual sex dolls — a move that earned them widespread criticism and an ~$81k fine.

The Almighty Buck

A Small US Town is Now Printing Its Own Currency (thehustle.co) 142

Tenino, Washington (population: 1,884) has launched its own local currency, reports the Hustle: Mayor Wayne Fournier decided that Tenino would set aside $10k to give out to low-income residents hurt by the pandemic. But instead of using federal dollars, he'd print the money on thin sheets of wood designed exclusively for use in Tenino. His mint? A 130-year-old newspaper printer from a local museum...

Residents below the poverty line can apply to receive money from the $10k fund that Tenino has set aside. Fournier says they also have to prove that the pandemic has impacted them, but "we're pretty open to what that means." Once they're approved, they can pick up their stipends, printed in wooden notes worth $25 each. The city is capping the amount each resident can accrue at 12 wooden notes — or $300 — per month. According to Fournier, each note features a Latin inscription that means, basically, 'We've got this handled'...

By creating its own local currency, Tenino keeps the money in the community. As Fournier puts it, "Amazon will not be accepting wooden dollars."

"The money stays in the city. It doesn't go out to Walmart and Costco and all those places," says Joyce Worrell, who has run the antique shop Iron Works Boutiques for the past decade.

The article notes that during the 1930s hundreds of scrips were issued by American municipalities, worker co-ops, and business associations -- estimated to be worth as much as $1 billion.

And it adds that at least a few small towns in Italy and Mexico are now giving the idea another try.
Printer

Windows 10's Latest Updates Are Causing Havoc On Printers (techradar.com) 69

Windows 10 received its monthly host of security patches earlier this week, and the latest cumulative updates are causing serious problems with printers -- particularly Ricoh devices, but also other models. TechRadar reports: The so-called 'Patch Tuesday' fixes released earlier in the week which are causing chaos are KB4557957 and KB4560960, which are for the May 2020 Update and the November 2019 Update. (Note that in one case, KB4561608, for the October 2018 Update, is also mentioned). As one Ricoh owner observed on Reddit: "Has anyone had issues today with printing and the latest Windows update [KB4560960]? We're seeing problems with Ricoh printers that were previously stable. Changing the print driver seems to help but that's going to be a pain if I have to roll it out to too many clients." Other folks with Ricoh printers have chimed in on that thread with similar issues in terms of breaking printer functionality completely, or elements of it, such as causing wireless printing to fail.

Further reports of printer failures include Brother and Canon devices, as well as some Kyocera, HP, Toshiba and Panasonic models. A network technician for a mainly Ricoh dealership also contributed to that Reddit thread, and noted: "After an abundance of service calls these last 2 days, I can confidently say PCL5 [driver] does not work at all, regardless of driver age. Installing the newest version of the PCL6 universal driver *does* seem to work. Not a realistic approach to servicing hundreds of clients, but at least new clients setup before the new patch should be okay."
Another solution is to simply uninstall the cumulative update. Thankfully, Microsoft is already working on a fix.
Printer

PrintDemon Vulnerability Impacts All Windows Versions (zdnet.com) 28

Two security researchers have published today details about a vulnerability in the Windows printing service that they say impacts all Windows versions going back to Windows NT 4, released in 1996. From a report: The vulnerability, which they codenamed PrintDemon, is located in Windows Print Spooler, the primary Windows component responsible for managing print operations. The service can send data to be printed to a USB/parallel port for physically connected printers; to a TCP port for printers residing on a local network or the internet; or to a local file, in the rare event the user wants to save a print job for later. In a report published today, security researchers Alex Ionescu & Yarden Shafir said they found a bug in this old component that can be abused to hijack the Printer Spooler internal mechanism. The bug can't be used to break into a Windows client remotely over the internet, so it's not something that could be exploited to hack Windows systems at random over the internet.
Open Source

As Raspberry Pi Sales Skyrocket, Eben Upton Applauds Efforts of Open Hardware Community (techrepublic.com) 41

"Sales of Raspberry Pi's single-board computers hit 640,000 in March, the second-biggest month for sales since they started selling," reports TechRepublic, "as consumers flocked to inexpensive ways to work and learn from home." But that's not all, Eben Upton tells them: With the pandemic having highlighted shortages in personal protective equipment (PPE), 3D-printing manufacturers and hobbyists have been building face shields printed on plastic acetate that can be quickly assembled and delivered to hospitals, for free. "A lot of that is Pi-driven," Upton explained, noting that OctoPrint, which is the most popular platform for managing 3D printers, runs on Raspberry Pi... "[M]aking face shields seems to be a community effort. You have people with a home printer, printing these things once a week and then going to a post office and sending them," he said.

"Then you'll have some people sat in a hack space receiving the parcels, cutting the acetate and the elastic, assembling them into face shields then sending them to the hospital. It's amazing." Upton suggested this effort could eventually be ramped up to a "massively distributed scale", with the benefit of open source being that, once you have a good design that works, it can be rapidly iterated. In the long term, this could even include the ventilators themselves, he said.

"One thing we're seeing with this is people finding a niche within which open hardware really works," he said.

Printer

State Officials Ask Trump Administration To Pull 3D-Printed Gun Files Offline (theverge.com) 326

An anonymous reader quotes a report from The Verge: Two dozen state attorneys general are asking the Trump administration to crack down on Defense Distributed's Defcad site for selling 3D-printed gun files. In a letter sent today, they urged the Justice Department and State Department to enforce rules against exporting weapons and making undetectable firearms. "If the federal government fails to act, these files will be distributed widely with potentially grave consequences for our national and domestic security," warns the letter. Attorneys general argue that Defcad is violating export control regulations and the Undetectable Firearms Act, which bans manufacturing, owning, and selling guns that don't trigger metal detectors. Anyone who downloads files could "automatically manufacture functional weapons that cannot be detected by a standard metal detector and, furthermore, are untraceable because they lack serial numbers," says the letter. "Continued dissemination of these files will increase the risk of terrorist attacks and gun violence across the United States." Defcad has well-established problems with ITAR, but the letter doesn't explain how it violates the Undetectable Firearms Act beyond asserting that files "enable the automatic manufacture of functional plastic weapons."
Biotech

Mobilizing 3D Printers Around the World Against the Coronovirus (theguardian.com) 25

"From face-shields to respirator valves, 3-D printer owners pitch in to the efforts to provide PPE to Australian hospitals," writes davecb (Slashdot reader #6,526).

It's not only happening in Australia. But the Guardian talked to Mat Bowtell, a former Toyota engineer in Australia who's using fourteen 3D printers to manufacture thousands of face shields for healthcare workers. And citing 3D printing, the director of a not-for-profit working with the government says the country has an "incredible onshore capability" to respond to the pandemic: "The 3D printing capability onshore is a massive distinguisher for Australia to step up to the crisis," he said. When asked how else 3D printing might be deployed in practice, Goennemann points to the supply of ventilators, which are needed to assist breathing in the most seriously ill Covid-19 patients... Goennemann says Resmed, the main ventilator manufacturer, could struggle to get parts due to the disruption of global supply chains. That's where 3D printing can help. "I don't want to speak on behalf of Resmed, but that's an area where we have critical supply, and parts can be 3D printed onshore rather than being procured offshore," he said...

For Bowtell, the decision to shift his production to face shields had nothing to do with profit. It was about doing what he could in the most extraordinary of times. "It's about survival at the moment," Bowtell said. "Just helping people to get through this together."

Reuters also reported that one Italian company used its 3D printers to manufacture valves for respirators for its local hospital. And a paywalled article at Fortune also describes the team building an open source ventilator, while also noting that more than 4,800 people with 3D printers "have, via a public Google Doc, signed up to help print everything from face shields to ventilator parts for their local hospitals."

They also highlight Budmen Industries, an upstate New York company selling 3D printers that has now also printed 1,492 face shields for New York medical workers. And finally there's the CoVent-19 Challenge, "an open innovation 8-week Grand Challenge for engineers, innovators, designers, and makers" on the GrabCAD Challenges platform, to create "a rapidly deployable, minimum viable mechanical ventilator for patients with COVID-19 related ventilator-dependent lung injury."
HP

Xerox Ends Its Hostile Takeover Bid For HP (cnbc.com) 9

Xeros is pulling the plug on its hostile bid to buy larger rival HP (Warning: paywalled; alternative source) after the coronavirus pandemic undermined the copier maker's ability to pull off the debt-laden merger. The Wall Street Journal reports: Xerox said Tuesday it is ending both its more than $30 billion tender offer and a proxy fight to replace the printer and PC maker's board. Xerox concluded it is no longer prudent to pursue the deal given the public health crisis and resulting market swoon. The move puts the kibosh on one of the biggest mergers in the works and underscores the blow that the coronavirus has dealt to the world of deal making.

It marks the end of a five-month-long offensive by Xerox, kicked off when its offer became public in early November after the two companies had earlier explored a combination quietly but failed to come to an agreement. HP has repeatedly rebuffed its rival since then, rejecting Xerox's latest cash-and-stock offer of $24 a share and an earlier one as insufficient and too risky given the amount of debt involved. Xerox's move to buy a company more than three times its size was always going to be a challenge, but at the outset the company was in a stronger position than it is today. It had cash coming in from the sale of its joint venture with Fujifilm and its stock had been rising as it continued to cut costs.

Medicine

Open-Source Project Spins Up 3D-Printed Ventilator Validation Prototype In Just One Week (techcrunch.com) 48

An anonymous reader quotes a report from TechCrunch: In a great example of what can happen when smart, technically-oriented people come together in a time of need, an open-source hardware project started by a group including Irish entrepreneur Colin Keogh and Breeze Automation CEO and co-founder Gui Calavanti has produced a prototype ventilator using 3D-printed parts and readily available, inexpensive material. The ventilator prototype was designed and produced in just seven days, after the project spun up on Facebook and attracted participation from over 300 engineers, medical professionals and researchers.

The prototype will now enter into a validation process by the Irish Health Services Executive (HSE), the country's health regulatory body. This will technically only validate it for use in Ireland, which ironically looks relatively well-stocked for ventilator hardware, but it will be a key stamp of approval that could pave the way for its deployment across countries where there are shortages, including low-income nations. The group behind the ventilator also recently changed the focus of their Facebook community, renaming the group from the Open Source Ventilator Project to the Open Source COVID19 Medical Supplies community. They're looking at expanding their focus to finding ways to cheaply and effectively build and validate other needed equipment, including protective gear like masks, sanitizer and protective face guards for front-line healthcare workers.

Businesses

Medical Company Threatens To Sue Volunteers That 3D-Printed Valves for Life-Saving Coronavirus Treatments (theverge.com) 367

A medical device manufacturer has threatened to sue a group of volunteers in Italy that 3D printed a valve used for life-saving coronavirus treatments. From a report: The valve typically costs about $11,000 from the medical device manufacturer, but the volunteers were able to print replicas for about $1. A hospital in Italy was in need of the valves after running out while treating patients for COVID-19. The hospital's usual supplier said they could not make the valves in time to treat the patients. That launched a search for a way to 3D print a replica part, and Cristian Fracassi and Alessandro Ramaioli, who work at Italian startup Isinnova, offered their company's printer for the job. However, when the pair asked the manufacturer of the valves for blueprints they could use to print replicas, the company declined and threatened to sue for patent infringement. Fracassi and Ramaioli moved ahead anyway by measuring the valves and 3D printing three different versions of them.

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