3D Printing Briefs, March 12, 2022: 3D Printed Car Parts, Heat Exchangers, and More – 3DPrint.com

In today’s 3D printing news, a Volkswagen subsidiary has invested in an SLM Solutions 3D printer and Stratasys has partnered with Radford to 3D print sports car parts. Next, we move on to 3D printed heat exchangers and MagLev switches, and Apis Cor has a new mobile home 3D printing robot. Finally, Cody Wilson says sales of his 3D-printed ghost guns are on the rise, as President Biden promises to slow the gun market.

MAN Energy Solutions places order for NXG XII 600

First, SLM Solutions Group AG announced that it has received an order from MAN Energy Solutions, a subsidiary of the Volkswagen Group, for its powerful NXG XII 600 12-laser 3D printer. MAN ES has been using an SLM 280 PS since 2019, but needed a larger envelope to meet the demand for large-scale 3D printed parts, and the NXG Xll 600, with its 600 x 600 mm² area, certainly fits the case. The 12-laser system meets the needs of stressed and rugged applications that require stringent mechanical properties, making it a good choice for the energy industry, which AMPOWER expects to triple its total system sales value by 2025 passed € 150 million in value. The NXG XII 600 will be used for mass production of components in the energy, industrial and marine sectors, and will be installed at MAN Energy Solutions’ additive manufacturing center in Oberhausen, Germany.

“We are delighted to continue our successful cooperation with SLM Solutions,” said Anders Such, Head of Additive Manufacturing at MAN Energy Solutions. “The NXG Xll 600 represents the next step in the industrialization of additive manufacturing at MAN Energy Solutions. On the one hand, this machine allows us to manufacture large components using economically competitive AM technology. On the other hand, it helps to make existing AM business cases even more appealing. This fits perfectly with our company’s goal of continuing to develop innovative production technologies. »

Stratasys and Radford 3D print more than 500 parts for Lotus Type 62-2

Host Ant Anstead shows off a 3D printed part for the bodied Lotus Type 62-2 as seen in the Discovery+ documentary, Radford’s Return

Stratasys (NASDAQ:SSYS) has announced a partnership with global luxury automotive brand Radford to produce more than 500 3D printed parts for the Lotus Type 62-2 bodied sports car, the launch of which is featured in the Discovery+ documentary Radford’s Return. The show documents the construction of what Stratasys called the “retro-modern” supercar, and viewers can see the entire process for the parts, from design and prototyping to tooling and 3D printing. using FDM, SLA and PolyJet technologies. Over 500 parts for the first two cars were 3D printed at Radford Studio, automotive design and engineering company Aria Group, and Stratasys Direct Manufacturing, and GrabCAD Shop workflow management software was used to schedule and track printing on a fleet of up to 20 Stratasys printers, including the J55, F770 and Fortus 450mc, at five global locations. Some of the 3D printed parts include mounting brackets, radiator ducts, and side mirror housings.

“By integrating 3D printing technology into their shop, Radford was able to bring automobile manufacturing of 1960s-style supercars to the 21st century with the premium, hyper-custom styling and features their customers have come to expect from a vehicle of this caliber. It’s an extreme example of something we see every day in the automotive industry. Anyone investing in new vehicles wants a deeper level of customization and 3D printing helps make that possible,” said Pat Carey, Senior Vice President, Strategic Growth at Stratasys.

3D printing heat exchangers in the AddUp 3DCALOR project

In a new consortium, the IRT Jules Verne, with its partners Fives, AddUp and the CNRS – Center National de la Recherche Scientifique/LTEN (Laboratoire Thermique et Énergie de Nantes), is launching the one-year project 3DCALOR for the purpose of 3D printing heat exchangers. The objective of this project is to study new geometries of heat exchangers possible with 3D printing, as well as to determine the main technological barriers to 3D printing of heat exchangers and to evaluate the performance of the integration of new architectures inspired by biomimetic principles.

“The project will also include work on the functionalization of surfaces by texturing and on the development of a product/process design and optimization strategy”, writes the IRT Jules Verne on its website.

“At the end of these 12 months, this could lead to a second larger project in which the aspects of topological optimization and the implementation of an industrial development methodology would be deepened.”

Hackaday Project: 3D Printed MagLev Switches

Moving on, Hackaday posted an interesting project on “Bespoke Input Devices” – 3D Printed Magnetic Levitation, or MagLev Switches, to be exact. GitHub user famichu developed the design for the open-source Magnetic MX-style switch, which Hackaday calls “significantly different from what we’ve seen before”, namely riskable’s void_switch. famichu wanted their magnetic switch to work the same as a traditional Cherry MX switch, that’s why each, with its own sensor, is pinned, and they have to be wired together to form a matrix, instead of putting sensors on the main PCB so electrical connections do not need to be made to each switch. The MagLev Switch MX parts are recommended to be printed on an SLA or DLP system, and famichu has included Fusion 360 design files, as well as STL/3MF models.

“Internally, [famichu] has developed a unique arrangement in which the Allegro A1304 Linear Hall Sensor is actually placed between two opposing magnets that replace the traditional spring. When the key is pressed, the sensor senses the changing magnetic flux environment around it, but interestingly, the keyboard PCB schematic seems to indicate that the sensors are not read directly by the microcontroller. Instead, their output is used to trigger MOSFETs on each row of the matrix.

Mobile home 3D printing robot by Apis Cor

Florida-based Apis Cor develops robots that 3D print buildings and recently introduced a mobile robot 3D printing system for this purpose, which will help the company develop its technology. This robotic 3D construction printer is said to have a unique design that allows for easy transportation with a van and trailer, and only requires two people to set up and operate, allowing a structure to be built on site without additional assembly. That’s the company’s ultimate goal: to automate the construction industry and move to cement-free materials, to really make an impact. Apis Cor is already taking $7,000 reservations for its mobile robotic 3D printer in the United States and plans to start working on these projects in 2023, after which it will expand to other countries.

“3D printing technology allows us to reduce the amount of construction waste,” said Anna Chen-iun-tai, CEO and co-founder of Apis Cor. “Additive manufacturing is the opposite of the subtractive manufacturing process where you have to cut out additional material to create a necessary shape. In the case of 3D printing, you add as much material as necessary to create a shape.

Cody Wilson isn’t worried about the crackdown on 3D-printed guns

Cody Wilson at a shooting range near Austin, Texas shows off his “zero percent” gun. Image courtesy of Forbes

Finally, since we first heard about Cody Wilson’s Defense Distributed “Liberator” pistol nearly a decade ago, the debate over 3D printed pistols has continued. Recently, President Joe Biden announced he would work to slow the expansion of the ghost gun market, but Wilson, who invented these unobtainable weapons, isn’t worried, saying he was selling his Ghost Gunner kits. $3 to $2,500 like hot cakes, noting sales of up to 55 per week. And the numbers seem to back up his claim — according to the U.S. Bureau of Alcohol, Tobacco, and Firearms, the number of suspected phantom guns reported annually by state and local law enforcement has risen from 1,750 at 8,712.

But last month, the president promised to use the federal phantom gun safeguard and wants to improve the definition of a firearm so that it includes the words “kit of weapon parts designed for or capable of being easily assembled, completed, converted or restored to expel a projectile by the action of an explosive. A Justice Department white paper outlines a new strategy that would include an ATF ‘shadow gun coordinator’ in each field division, and according to Christian Heyne, the nonprofit’s vice president of policy Brady United, the ATF is about to finalize this new rule. Legal experts say that plan may ultimately be what stops Wilson in his tracks.

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