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Social Networks

Why Raspberry Pi's New Hire Caused a Social Media Firestorm (buzzfeednews.com) 206

An anonymous reader quotes a report from BuzzFeed News: Joe Bowser is a computer scientist based in Port Moody, British Columbia, who has long loved Raspberry Pis. He uses the low-cost, single-board computers, which were launched in February 2012 by a UK-based company of the same name, for many of his tech projects. Those include linking the Raspberry Pi up to a 3D printer, and using the Pi to run a machine-learning demo. There's one use case that Bowser described as "the most important": using a Raspberry Pi to identify the use of IMSI catchers -- telephone eavesdropping devices that snoop on phone calls and text messages -- by law enforcement. Protesters opposing new oil pipelines happen to pass by Bowser's house regularly. He thinks cops shouldn't spy on them. So he's trying to help out the protesters using his tech knowledge. To do that, he uses Raspberry Pis. Or more accurately, he did. Bowser has forsworn using the computers ever again. He and many others are expressing their displeasure with the company on social media.

The controversy began yesterday when Raspberry Pi posted an announcement on Twitter and Mastodon: "We hired a policeman and it's going really great." The company linked to a laudatory blog post on its website announcing it had hired an ex-police officer, Toby Roberts, as its maker-in-residence. "I was a Technical Surveillance Officer for 15 years, so I built stuff to hide video, audio, and other covert gear," Roberts is quoted as saying in the post. "You really don't want your sensitive police equipment discovered, so I'd disguise it as something else, like a piece of street furniture or a household item. The variety of tools and equipment I used then really shaped what I do today." A subsection of the Raspberry Pi community expressed concern about the blase way the company presented intrusive covert surveillance. (The news caused particular ire on Mastodon, leading some to describe Roberts as the burgeoning social media platform's first "main character.") [...]

Liz Upton, Raspberry Pi's cofounder and chief marketing officer, told BuzzFeed she believes that much of the issue stems not from the hiring of the former police officer who admitted to using Raspberry Pis for covert surveillance, but instead from a picture the account posted to Mastodon a day earlier showing pigs in blankets. "We didn't put a content warning on it, because we don't put a content warning on meat," Upton said. "There were quite a few people who tried to start dogpiling on that." She also claimed that part of the vitriolic response could be because Raspberry Pi is struggling with supply chain difficulties at present, and people "were already cross." "I think what we're looking at is a dogpile that's being organized somewhere," Upton said. "There's obviously a Discord or a forum somewhere." She did not provide evidence to support that claim. "I don't think this is organic, but it's very unpleasant, and extraordinarily unpleasant for the people involved," she said. Upton claimed both Roberts and Raspberry Pi's social media manager have been doxxed and received death threats.
"I am disgusted that [Raspberry Pi's] official post on Toby Roberts' hiring promotes his use of their products to surveil individuals without their consent," Matt Lewis, a Denver-based site reliability engineer, wrote via Twitter DM. "In my eyes, this behavior is completely unethical and the work Toby has done for 15 years is indefensible. I'm also upset that they have chosen to double down on this position against the community outrage."

"I think this event will mark a turning point in the organization's reputation," added Wikipedia consultant Pete Forsyth in a Twitter DM. "It's hard to see how they can recover the trust they seem to have almost willfully dismantled today."

Not everyone is downbeat about the future of the company. University of Surrey cybersecurity professor Alan Woodward called Roberts an "interesting hire" for Raspberry Pi. "His previous uses of the Pi shows just what a versatile device it is: I'm sure he's not the only one using the smallest variants to make covert devices," Woodward said. "You find that you have to be very creative to build these types of covert devices, so hopefully he can now bring that to his new role, for a wider variety of applications."

"It's not as if he is going to corrupt any of the Pis -- like all technology, it has some uses some people will object to," he said. Rather, Woodward believes "the loudest objectors are taking it a bit far. Maybe they could look at it as a glass-half-full situation: Think of the unusual innovations he might bring."
Printer

Epson To End the Sale and Distribution of Laser Printer (theregister.com) 191

Japanese electronics and printer maker Epson announced this month that it will end the sale and distribution of laser printer hardware by 2026, citing sustainability issues. From a report: According to the company, inkjets have a "greater potential" than laser printers to make "meaningful advances" when it comes to the environment. The company already halted laser printer sales in many markets, but continued in Asia and Europe. Even though new hardware would be unavailable everywhere, Epson said it would continue to support consumers with consumables and spare parts.

"As a company we're totally committed to sustainable innovation and action, and inkjets simply use less energy and fewer consumable parts," explained Epson sales and marketing manager Koichi Kubota in canned statement. "While laser printers work by heating and fusing toner to a page, Epson's Heat-Free inkjet technology consumes less electricity by using mechanical energy to fire ink onto the page."

HP

HP Will Cut Up To 6,000 Jobs Over Next Three Years 32

Computer and printer maker HP said Tuesday it will cut between 4,000 and 6,000 jobs by the end of 2025 as part of a restructuring. Axios reports: HP said the move will save it at least $1.4 billion annually by the end of fiscal 2025. However, it expects to incur $1 billion in costs due to the restructuring, with $600 million in fiscal 2023 and the rest split over the remaining two years. It made the announcement alongside its quarterly earnings report.

As part of that report, HP said to expect per-share earnings of 70 cents to 80 cents, excluding items. That's below consensus expectations of about 86 cents per share, per CNBC.
Further reading: A Host of Tech Companies, Including Coinbase, Robinhood, Lyft, and Stripe, Announce Hiring Freezes and Job Cuts
IT

Hawaii is About To Launch One of the Nation's Most Ambitious Tech Waste Recycling Programs (hawaiinewsnow.com) 40

Hawaii is implementing one of the most ambitious electronic waste recycling plans in the country, but some Hawaii retailers are afraid it will mean higher prices and less selection. From a report: Ironically, Hawaii has no ability to recycle electronic devices. Instead, the material has to be collected and shipped to processing centers elsewhere. The goal of the new law is to have manufacturers collect and ship out more and more of the used-up products. But industry lobbyist Walter Alcorn, with the Consumer Technology Association, said the law sets goals that cannot be met. "On the industry side, it's been a scramble." Alcorn said. "Particularly for the computer and printer manufacturers that previously did not have to have this type of a program."

State Rep. Nicole Lowen, chair of the Energy and Environmental Protection Committee, was among the lead advocates for the law. She said putting the full responsibility on the manufacturers will incentivize them to pay more attention to the waste their industry is generating. "We are pushing them to rethink the design packaging, distribution systems of their products and create more efficiency, for the reuse and recycling of those products or the materials that they contain," Lowen said. The law required 49 manufacturers, from Apple to Samsung, to report how much product has been shipped in by weight and how they would set up systems to collect discarded devices and ship them to recycling locations. There are none in Hawaii so all the products would have to be shipped out.

OS X

Preview App On macOS Ventura Drops Support For PostScript Files (macrumors.com) 143

Starting with macOS Ventura, released this week, the built-in Preview app on Mac no longer supports PostScript (.ps) and Encapsulated PostScript (.eps) files, according to a new Apple support document. MacRumors reports: Preview can still be used to open these files on macOS Monterey and earlier. Apple did not provide a reason for the change. Apple recommends using other third-party Mac apps that can view or convert PostScript files. It also remains possible to print .ps and .eps files by dragging them into a Mac's printer queue [...].

Developed by Adobe in the 1980s, the .ps and .eps file formats were once widely used for desktop publishing/printing purposes. PostScript was the basis of rendering on the NeXT operating system, and was mostly replaced by the PDF format in Mac OS X.

Printer

New York Changes Gun Buyback After Seller Gets $21,000 For 3D-Printed Parts (theguardian.com) 277

An anonymous reader quotes a report from the Guardian: The attorney general of New York has changed the rules of a state gun buyback program, after a participant exploited the system by using a 3D printer to make firearm parts in bulk that he then exchanged for $21,000 in gift cards. The seller, who identified himself by a pseudonym, said he traveled from West Virginia to a gun buyback on August 27 in Utica, New York, to take advantage of a loophole in the program -- and to demonstrate that buybacks are futile in an era of printable weapons.

At the buyback, the seller turned in 60 printed auto sears, small devices that can convert firearms into fully automatic weapons. Under the rules of the buyback, hosted by the office of the attorney general, Letitia James, and city police, that entitled him to $350 for each of the printed parts, including a $100 premium, since they were deemed "ghost guns" lacking serial numbers. The seller, who declined to provide his real name, said in an email on Monday the prospect of making money was enticing, but that the big reason he took part in the buyback was to send a message.

James' office said it responded to the loophole by giving buyback personnel more discretion to determine the value of weapons being handed in, and setting a standard that all 3D-printed guns accepted by the program must be capable of being fired more than once. The new rules were in place by September 17, when the attorney general's office hosted a gun buyback in a Syracuse suburb, Camillus. "It's shameful that this individual exploited a program that has successfully taken thousands of guns off the streets to protect our communities from gun violence," the attorney general's office said.

Hardware

Lenovo Doesn't Like Framework's Circular Power Button (theverge.com) 25

Lenovo has taken issue with the design of the Framework Laptop and one of its power buttons. The Verge reports: In a tweet, the startup claims to have been contacted by Lenovo's legal team, who say the circular design of the power button on one of Framework's designs is too similar to the stylized "O" Lenovo uses in the wordmark for its "Legion" brand of gaming laptops. "Consumers could believe that Framework's Broken O Case or the motherboards they cover are produced by, sponsored, endorsed, licensed, or otherwise affiliated with Lenovo, when that is not the case," a screenshot of the legal letter from Lenovo posted by Framework reads.

The offending power button design doesn't appear on any of Framework's laptops. Instead, the circle can be found in the 3D printer case schematics that Framework released back in April, which allow customers to build their own Raspberry Pi-style miniature PCs using just the laptop's motherboard (these can be bought separately, as well as harvested from a Framework laptop). This YouTube video gives a nice overview of how the 3D-printed enclosure is supposed to work (the power button gets pressed at the 9:35 minute mark). [...] Framework doesn't physically sell anything with the offending power button design on it, so fixing the problem is theoretically as simple as uploading a replacement set of CAD files to GitHub. So, rather than fighting Lenovo, Framework is holding a competition for its users to submit new designs for its power button. Entries are open until August 25th, and the winner gets a free i5-1135G7 Mainboard.

Printer

Bricked Epson Printers Make a Strong Case For User Repairability (theverge.com) 101

Epson has gained some scrutiny in recent weeks after the company disabled a printer that was otherwise working fine, leading to accusations of planned obsolescence. Epson knows its printers will stop working without simple maintenance at a predictable point in the future, and it knows that it won't be cost-effective for many owners to send their home printers in for service. So why not build them to be user serviceable in the first place? The Verge: The inciting post from @marktavern mentions that his wife was unable to use her "very expensive Epson printer" after an end-of-service error message appeared. This isn't anything new for Epson printers, sadly. Reports going back several years mention an infamous error message that reads "parts inside the printer have reached the end of their service life." Epson confirmed to The Verge that the error is related to the printer's ink pads, which had likely become saturated through extended use and were now at risk of spilling into the rest of the printer mechanism.

In a recently updated support document, Epson offers several solutions to resolve the problem. These include sending the printer into Epson to replace the ink pads or having a local certified technician do it. Previously (via Wayback Machine), just before the issue gained notoriety, Epson conceded that "repair may not be a good investment for lower cost printers because the printer's other components also may be near the end of usable life." It then added that "most consumers who are out of warranty elect to replace a lower-cost printer when they receive an end of life service message." Now, Epson suggests the feel-good option of sending the bricked unit in for recycling.

Printer

Epson Programs Some Printers To Stop Operating, Claiming Danger of 'Ink Spills' (substack.com) 182

Long-time Slashdot reader chicksdaddy writes: Printer maker Epson has programmed some models of its inkjet printers to "stop operating" at a pre-determined time, citing the risk of property damage linked to "ink spills," the Fight to Repair newsletter reports.

Epson printer owners have complained that their functioning printers have suddenly stopped working, displaying an error message declaring that a component of the printer has "reached the end of its service life" and that the device needs to be serviced. According to Epson's website, the message is linked to ink pads, which Epson describes as "porous pads in the printer that collect, distribute, and very importantly contain the ink that is not used on printed pages." Over time, these pads become saturated with ink though generally not "before the printer is replaced for other reasons" (??!)

"Like so many other products, all Epson consumer ink jet products have a finite life span due to component wear during normal use... The printers are designed to stop operating at the point where further use without replacing the ink pads could create risks of property damage from ink spills or safety issues related to excess ink contacting an electrical component," the company said on its website.

Rather than measure the saturation of the ink pads to determine when that point is reached, however, Epson appears to have programmed a counter on its printers that disables the device when a threshold has been reached. For printer owners who use Windows, Epson makes a reset utility that can reset the counter though it can "only be used once and will allow printing for a short period of time." For Mac users, or Windows users who have already run the reset utility once, Epson urges them to have the printer serviced by an Epson authorized service shop or — preferably — to replace the printer with a new printer. "Repair may not be a cost-effective option for lower-cost printers because other components may also be near the end of their usable life," the company said. Despite the company's claims about the unfixability of the ink pad issue, YouTube videos suggest that the ink pads are, in fact, simple to replace, as this video illustrates.

Some legal experts say that Epson's hard coding an end of life for its printers may be illegal — an example of "Deceptive trade practices," unless it is clearly disclosing the existence of the programmed end of life to consumers prior to purchase.

Here's how the Fight to Repair newsletter sees the situation. Epson "pushes its customers to throw away the entire, working printer unit simply because some sponges are saturated with ink.

"In doing so, the company amplifies our epidemic of e-waste and forces customers into an expensive and (as it turns out) unneeded upgrade."
Star Wars Prequels

Hasbro Can Now 3D Print Your Face Onto a Star Wars Action Figure (cnn.com) 29

"Customized action figures at massive scale," promises a video at CNN. They'll be priced at $59.99, and it'll all start happening this fall — thanks to Hasbro's new partnership with 3D printer company Formlabs.

Long-time Slashdot reader destinyland explains: "It wasn't until recently that two technologies came into play at once," Brian Chapman, Hasbro's head of global design and development tells CNN. "One is a very simple way to scan someone's face and head" — which can now be accomplished with a Hasbro mobile app (which also allows customers to select other customizations like specific costumes). "And then, a very affordable way to print that head in a one-off way" (so it can be affixed to the standard body of Hasbro's action figures).

Imagine your face on Star Wars and Marvel action figures, as well as Power Rangers, Ghostbusters — and more.

CNN adds that Hasbro say it will not sell user face data, and will delete it after 60 days.

Printer

'How the 3D-Printing Community Worldwide is Aiding Ukraine' (msn.com) 41

Jakub Kaminski is a robotics engineering graduate student at Worcester Polytechnic Institute in Massachusetts. With some volunteers he spent two months designing the perfect tourniquet for the battlefields of Ukraine, designed meet the highest medical standards — and then uploaded it to 3DPrintingForUkraine.com.

Now in less than 8 weeks "around 120 individuals and companies worldwide with 3D printers have accessed the design," reports the Washington Post. [Alternate URL here] "Together, they have made roughly 5,000 reusable tourniquets that are bound for Ukraine, where they will be stitched and sent off to the battlefield, Kaminski said..." Using digital files, people are designing supplies such as bandages, tourniquets, splints and add-ons to AK-47 guns.... [In February, as Russia began its invasion] people in the 3D-printing community talked with Ukrainian military officials, hospital administrators and charity organizations, trying to gauge what they could print quickly that would be most helpful. Tourniquets and bandages were repeated requests. Mykhailo Shulhan, the chief operating officer of a Ukrainian 3D-printing company in Lviv, said that as soon as the invasion began, he started researching how 3D printers helped in other conflicts....

These days, his company, 3D Tech Addtive, develops and prints an array of weapons accessories: AK-47 holsters so soldiers have a way to rest their guns; bullet magazines since empty cartridges often get thrown away instead of reused; carrying bags for grenades; and most recently, anti-reflective lenses for sniper scopes to reduce glare and prevent Ukrainian snipers from being seen. (All together, they have provided over 5,000 components to the front lines, Shulhan estimated....)

While most 3D printers create supplies to stop death or ease fighting conditions, others are focusing on rehabilitating soldiers. Brett Carey, a physical therapist in Hawaii, designs 3D printed splints that can be sent to fighters... Carey has created two digital designs for splints that have been uploaded online and 3D printed over 1,500 times. If injuries are advanced, he has people send him images of their injuries using EM3D — a 3D imaging app — which allows him to make a custom made splint which is then shipped to Ukraine...

The Post also got this quote from the robotics engineering student whose team designed the tourniquets.

"It's a beautiful thing," he said. "If you make people in Ukraine feel better, and enable people to help. ... This is something really special."
Printer

GM 3D Prints 60,000 Parts to Keep Producing SUVs (cnet.com) 57

General Motors couldn't produce the component it needed for its 2022 SUV, the Chevrolet Tahoe, reports CNET. So the company's engineers "turned to a novel solution: 3D printing..." GM made a major investment in the tech in 2020, dedicating 15,000 square feet of space to a facility dubbed the Additive Industralization Center, then filling it with HP Multi Jet Fusion 3D printers, among others.... A year later, GM's big investment paid off. Chevrolet engineers made a late change to the 2022 Tahoe's design, necessitating the creation of an additional part: A new, flexible "spoiler closeout seal" fills a gap at the rear of the big SUV. Developing the tooling to injection-mold the things would have taken too long, delaying the delivery of 30,000 vehicles.

Enter 3D printing. Engineers were able to quickly design and print the components using a flexible material that met GM's criteria. They even used a process called vapor polishing to give the parts a perfect shine... Since each Tahoe requires two seals, Chevrolet needed a whopping 60,000 of them. From design to completion took just five weeks. That's less than half the time going the injection-molding route would have taken, which got all those SUVs out the door on time.

CNET calls it "almost certainly the largest deployment of additive tech in a production car" — and "an interesting preview of what's to come."
Displays

Custom LEGO Computer Brick Has Working OLED Display (tomshardware.com) 17

Developer James Brown created a custom LEGO computer terminal brick, complete with "an actual processor and a working screen to help bring the fictional computer to reality," reports Tom's Hardware. From the report: The iconic computer terminal brick it's based off of is made using the 2 x 2 slope brick. James has created this one entirely from scratch with the help of a 3D printer and an ARM-based microcontroller. It powers up and features screen animations that look like lines of terminal code scrolling by as well as a loading animation. The screen used inside this custom LEGO is super tiny -- less than half an inch across -- and Brown appears to have ordered tons of these things. Just last month, he used a handful of them to create a custom mechanical keyboard on which each key has its own OLED display. The keyboard can be programmed with a demo video showing the letters changing from lowercase to capital on the fly.

Rather than using a Raspberry Pi to power the tiny terminal, Brown had a custom PCB printed just for the project using a different ARM-based chip. On this board is an STM32F030F4P6TR -- an ARM Cortex M0 series microcontroller with a 32-bit single core and 16KB of flash. An RP2040 SoC could be used in its place, should you wish to spin your own PCB. It's connected to a .42-inch OLED display which has a resolution of 72 x 40px. Brown explains that it gets power from an old LEGO 9V system that uses conductive strips inside the studs.

Instead of taking apart an existing brick, Brown opted to design one from scratch. This process involved 3D-printing a mold in which he could cast the brick with the electronic components fit inside. The final product is a semi-translucent blue brick that illuminates with the light from the OLED display.

Printer

New Type of 3D Printing Uses Sound Waves To Build Up Objects (newatlas.com) 23

A team of scientists at Canada's Concordia University are using sound waves to print intricate three-dimensional objects. The technology is known as direct sound printing (DSP). New Atlas reports: In the current version of the technique, a transducer is used to send focused pulses of ultrasound through the sides of a chamber, into liquid polydimethylsiloxane (PDMS) resin contained within. Doing so produces ultrasonic fields, which cause rapidly oscillating microscopic bubbles to temporarily form at specific points in the resin. As those bubbles oscillate, the temperature inside them rises to about 15,000 degrees Kelvin (14,727C or 26,540F) and the pressure within them climbs to over 1,000 bar (14,504 psi). Although this sudden increase in temperature and pressure only lasts for picoseconds (trillionths of a second), it causes the resin to solidify at the exact location of the bubble. Therefore, by incrementally moving the transducer along a predetermined path, it's possible to build up an intricate three-dimensional object -- one tiny pixel at a time. Along with its ability to produce very small, detailed items, DSP also allows structures to be non-invasively printed inside other structures that have opaque surfaces. [...] Besides the PDMS resin, the scientists have also successfully used DSP to print objects made of ceramic material. They now plan on experimenting with polymer-metal composites, followed by pure metal. The research has been published in the journal Nature Communications.
Medicine

Doctors Transplant Ear of Human Cells, Made By 3D Printer (nytimes.com) 13

An anonymous reader quotes a report from the New York Times: A 20-year-old woman who was born with a small and misshapen right ear has received a 3-D printed ear implant made from her own cells, the manufacturer announced on Thursday. Independent experts said that the transplant, part of the first clinical trial of a successful medical application of this technology, was a stunning advance in the field of tissue engineering. The new ear was printed in a shape that precisely matched the woman's left ear, according to 3DBio Therapeutics, a regenerative medicine company based in Queens. The new ear, transplanted in March, will continue to regenerate cartilage tissue, giving it the look and feel of a natural ear, the company said.

The results of the woman's reconstructive surgery were announced by 3DBio in a news release. Citing proprietary concerns, the company has not publicly disclosed the technical details of the process, making it more difficult for outside experts to evaluate. The company said that federal regulators had reviewed the trial design and set strict manufacturing standards, and that the data would be published in a medical journal when the study was complete. The clinical trial, which includes 11 patients, is still ongoing, and it's possible that the transplants could fail or bring unanticipated health complications. But since the cells originated from the patient's own tissue, the new ear is not likely to be rejected by the body, doctors and company officials said.

Printer

Canon Wireless Printers Are Getting Stuck In Reboot Loops (theverge.com) 85

Over the last day or two, there have been a growing number of reports by people who own certain Canon Pixma printers that the devices either won't turn on at all or, once turned on, get stuck in a reboot loop, cycling on and off as long as they're plugged in. The Verge reports: Verge reader Jamie pointed us to posts on Reddit about the problem and Canon's own support forum, citing problems with models including the MX490, MX492, MB2010, and MG7520. Some believe their problem is due to a software update Canon pushed to the printers, but that hasn't been confirmed yet. In response to an inquiry from The Verge, corporate communications senior director and general manager Christine Sedlacek said, "We are currently investigating this issue and hope to bring resolution shortly as customer satisfaction is our highest priority."

Until there is an official update or fix, some people in the forums have found that disconnecting the printers from the internet is enough to keep them from rebooting, with control still possible via USB. To get the printers to work while maintaining your connection to the internet and their connection to local network devices, one reply from a customer on Canon's support forum suggests a method that many people report has worked for them.

Space

Mitsubishi Develops Technology for 3D Printing in Outer Space (mitsubishielectric.com) 9

"Made In Space, Redwire, and Bigelow, move over," writes long-time Slashdot reader Dr. Crash. "There's yet another 3D printing in space group — and it's not a startup." Mitsubishi Electric just went public with a UV-sensitive resin specially made to print in zero-G and in a hard vacuum — as in outside the airlock.

The polymer is tuned to harden with solar ultraviolet light, so no UV lasers needed (saving power and launch weight).

Their first goal? Printing cubesat parabolic dishes in orbit, so a 300mm cubesat could have what looks like a one-meter dish antenna — or anything else that can be freeform-printed.

This "photopolymerization" technology "specifically addresses the challenge of equipping small, inexpensive spacecraft buses with large structures, such as high-gain antenna reflectors," according to Mitsubishi's announcement — arguing that it also ultimately "enables on-orbit fabrication of structures that greatly exceed the dimensions of launch vehicle fairings."
Printer

Making 3D Printing Truly 3D (phys.org) 14

An anonymous reader quotes a report from Phys.Org: Don't be fooled by the name. While 3D printers do print tangible objects (and quite well), how they do the job doesn't actually happen in 3D, but rather in regular old 2D. Working to change that is a group of former and current researchers from the Rowland Institute at Harvard. [...] The researchers present a method to help the printers live up to their names and deliver a "true" 3D form of printing. In a new paper in Nature, they describe a technique of volumetric 3D printing that goes beyond the bottom-up, layered approach. The process eliminates the need for support structures because the resin it creates is self-supporting.

The key component in their novel design is turning red light into blue light by adding what's known as an upconversion process to the resin, the light reactive liquid used in 3D printers that hardens into plastic. In 3D printing, resin hardens in a flat and straight line along the path of the light. Here, the researchers use nano capsules to add chemicals so that it only reacts to a certain kind of light -- a blue light at the focal point of the laser that's created by the upconversion process. This beam is scanned in three dimensions, so it prints that way without needing to be layered onto something. The resulting resin has a greater viscosity than in the traditional method, so it can stand support-free once it's printed.

"We designed the resin, we designed the system so that the red light does nothing," Congreve said. "But that little dot of blue light triggers a chemical reaction that makes the resin harden and turn into plastic. Basically, what that means is you have this laser passing all the way through the system and only at that little blue do you get the polymerization, [only there] do you get the printing happening. We just scan that blue dot around in three dimensions and anywhere that blue dot hits it polymerizes and you get your 3D printing." The researchers used their printer to produce a 3D Harvard logo, Stanford logo, and a small boat, a standard yet difficult test for 3D printers because of the boat's small size and fine details like overhanging portholes and open cabin spaces.

Printer

Can We Beat the Housing Crisis By 3D-Printing Homes? (msn.com) 160

"As housing prices across the country continue to skyrocket, an Iowa-based company, Alquist 3D, is looking to combat the crisis by 3D-printing homes," reports NexStar Media: Alquist, one of a few U.S. companies that 3D-prints houses, is looking to build 200 of these homes in Virginia starting this summer.

The process is somewhat simple. First, a person designs what they want the frame of the house to look like by using a computer program. Then, a file is transmitted to a machine, which tells it what to do and how to move. On-site workers pour in cement material, then the concrete is pumped through the tubes and dispersed in layers...

Zachary Mannheimer, founder and CEO of Alquist 3D, believes 3D-printing is a game changer because it cuts costs up to 15% by scaling back labor, materials, and time. He does understand that there are concerns about displacing traditional construction jobs, and some environmental impacts of this method, but he says he is working to attack those issues.

Printer

Honda Hits 3D Printing Sites With Takedown Orders Over Honda-Compatible Parts (thedrive.com) 120

A writer for The Drive reports that "Recently, I noticed a part that I made for my Honda Accord was removed from Printables, the newly rebranded 3D printing repository offered by Prusa.

"There seemed to be no rhyme or reason for it, but I didn't think anything else about it...until reports of a mass deletion started popping up on Reddit." All models referencing the word "Honda" posted prior to March 30, 2022, were seemingly removed from Printables without warning. These included speaker brackets, key housings, hood latches, shifter bushings, washer fluid caps, roof latch handles, and my trunk lid handle — a part not offered on 10th generation Accords sold in the U.S. at all. In fact, many of the removed parts had no Honda branding but were just compatible with Honda vehicles. As it turns out, Prusa says it was issued a takedown notice from Honda and removed all 3D models that referenced the brand.

"I can confirm to you that we have received a letter from a lawyer representing Honda, informing us that we were required to remove any model which used 'Honda' in the listing, the model itself, or one of several trademarks/logos also associated with Honda," a Prusa spokesperson told The Drive in an email. "This will also be related to the naming of the files it self (sic), as for Honda this would be considered as a violation of their trademark/patents." A Prusa employee responded to a post on the company's forums, noting that Honda sent a "huge legal document" that covered every model that the company wished to have deleted. The document reportedly included items that did not have Honda logos, but also specific items with certain shapes and dimensions — like a washer fluid reservoir cap, for example.

A response from another employee was posted suggesting other sites that host 3D models were also sent a similar takedown notice.

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