Advanced linear actuators allow the Marines to rapidly produce essential components and prototypes under diverse conditions. How US Marines Produce On-Demand Tools with 3D Printing Advanced linear actuators allow the Marines to rapidly produce essential components and prototypes under diverse conditions. Edited by EE Staff Cool Stuff Aug 11, 2026 Linear actuators power the Marine Corps Tactical Systems Support Activity’s (MCTSSA) XFAB, a portable expeditionary fabrication lab for additive manufacturing, supporting maintenance, fabrication, prototypes, supply, and equipment modification. MCTSSA, which aids the Marine Corps and Joint Service C4I architecture through communications exercises, cyber testing, and tactical networking, recently hosted design experts to test XFAB’s network connectivity. XFAB is a transportable and self-contained, additive manufacturing lab that can be deployed with battalion-level Marine maintenance units. Images courtesy of PBC Linear. The lab features a 3D Platform 300 Series Workbench Pro large-format printer, enhanced by PBC Linear industrial-strength linear actuators. These actuators ensure superior performance and reliability, enabling precise, robust motion control for demanding field operations. The lab is 20-by-20 feet and is collapsible for easier transport. Inside there are five 3D printers including two desktop printers, two industrial carbon fiber printers, and the 3D Platform 300 Series Workbench large format printer. In addition, the lab includes laser scanners and cutters, and a corresponding computer design software system. Images courtesy of PBC Linear. The XFAB container is powered by a generator or shore power and can be set up or torn down by a team of four Marines in roughly two-to-three hours. Its weight, when fully equipped, tops the scales at about 10,500 pounds and can be transported via the Logistics Vehicle System Replacement or a typical commercial flatbed truck. XFAB has been in development for over five years and will eventually provide Marines with an opportunity to fabricate their own manufacturing tools, parts, and signage. This capability will offer support in forward-deployed expeditionary environments where specialty and hard-to-find parts are not readily available. UG (SIMO) Series Linear Actuators The 300 Series large format printer from 3D Platform offers the highest print volume dimensions of the group, with a robust 1000 mm x 1000 mm x 700 mm (0.7 m³, 1.4×). It is built with linear motion hardware that includes five UG (SIMO) Series actuators from PBC Linear. Each actuator that moves along the X-Y-Z gantry is customized and incorporates Constant Force™ anti-backlash lead screws and nuts for high precision and strength. SIMO is an acronym for Simultaneous Integral Milling Operation. It is a process developed and patented by PBC Linear that has revolutionized traditional machining. The SIMO process uses synchronized cutters, eliminating built-in extrusion variances by machining all critical edges concurrently in one pass. This ensures tight tolerances, limited variance, and a remarkably straight and repeatable surface at minimal additional cost. This process is used on both our plain bearing Gliding Surface Technology and related actuators, as well as cam roller V-guide bearings. The SIMO process offers many advantages to the standard aluminum extrusion process. The twist and flatness are generally two times better than standard aluminum extrusions, with the straightness (camber) reaching six-times that of standard extrusions. Images courtesy of PBC Linear. The testing event at MCTSSA included senior leaders and Marines from 1st Marine Logistics Group, 1st Light Armored Reconnaissance Regiment, 3rd Amphibious Assault Battalion and 3rd Marine Aircraft Wing. The demo offered them a first-hand look at the equipment and how they can manufacture parts and products. The ultimate objective was to reach final operational capability and then begin delivering labs to the Fleet Marine Forces. For information: PBC Linear UG (SIMO) Series Actuators XFAB 3D Platform Read more linear guide case studies >>> Previous Facebook LinkedIn Copy link Next

Lifting a Bed-of-Nails in a museum display demanded reliable performance, long product life, and simple integration. Bed of Nails Museum Exhibit Lifts with Ease Lifting a Bed-of-Nails in a museum display demanded reliable performance, long product life, and simple integration. Museums Aug 12, 2025 On a Bed-of-Nails lift table application, the question facing engineers was, “How much do you trust your linear bearing technology?” CW Shaw Inc, a designer and fabrication firm that specializes in bringing interactive, fun and educational museum exhibits to life was posed with this question. For linear ball-bearings, any slight contamination of the bearing cages can lead to breakage, stalling, or total machine failure, which results in a low rate of confidence when lying on a spiky table. After considering the design, load, environment, and necessary long-term operation, CW Shaw opted for Simplicity pillow block housings to guide the support rails on the Bed-of-Nails lift table for a museum exhibit. To demonstrate the full effect of the exhibit, the lift table needed to be raised and lowered by 3-inches, handle loads up to 1,000 lb (for safety), and move at a moderate speed of 5-feet per minute. Potential contamination was a major factor CW Shaw considered. Any trace of dust or particulate posed a risk of system failure, raising safety concerns. Therefore, CW Shaw sought a linear motion system that would not fail under contamination (dust and carpet fibers). Since most museums operate on fixed budgets, CW Shaw also held maintenance-free operation as a crucial design prerequisite, which is why the company designers turned to Simplicity linear plain bearings and pillow block assemblies. The Linear Pillow Block Solution Simplicity products from PBC Linear became a proven solution when requiring maintenance-free, worry-free linear motion. Designed and refined for over 25 years, Simplicity technology has been successfully applied in some of the most extreme environments: temperature extremes, high contamination, and shock and vibration. The bearings travel using a proprietary Frelon liner which transfers the load and glides over dust and other particulate without damaging the shaft. Also, since the pillow blocks are precision designed with no rolling elements, Simplicity pillow block housings will never catastrophically fail, allowing for reliable and safe linear guidance of the support rails. Two Simplicity pillow block assemblies were installed at each end of the lift table to support the load and guide the lift rails. CW Shaw noted no problems in performance and, over time, has implemented the design for several nail bed exhibits throughout the country. For more information: PBC Linear Plain Pillow Block Free Product Sample CW Shaw Previous Facebook LinkedIn Copy link Next

Generative AI will expand scenes and enhance characters The Wizard of Oz at Sphere in Las Vegas Will Use Google’s AI to Create an Immersive Experience Generative AI will expand scenes and enhance characters Joe Gillard Film and TV Jun 7, 2025 Stage Events Google and Sphere Entertainment, the immersive entertainment venue in Las Vegas, Nevada, announced a partnership to develop The Wizard of Oz at Sphere using generative AI (gen AI), according to a press release . The companies say the collaboration will involve engineering work, as well as “thousands of creators, coders, VFX artists, and more,” to present the immersive experience which opens in Las Vegas on August 28, 2025. Google Cloud and DeepMind will deploy Gemini models Veo 2 and Imagen 3 to enhance the film's resolution, extend backgrounds, and digitally recreate existing characters who would otherwise not appear on the same screen. Sphere is also using Google Cloud's AI-optimized infrastructure to support the data and computational demands of immersive experiences, with The Wizard of Oz at Sphere processing 1.2 petabytes of data over the course of the project to date. Google is one of the many tech giants ramping up AI across multiple domains, though the film industry, in particular, has been somewhat hesitant to embrace AI . Nevertheless, Google is moving forward in this attempt to combine cinema with AI for an immersive entertainment experience. "Our partnership with Sphere on The Wizard of Oz at Sphere is a great example of pushing the boundaries of generative AI to deliver exciting new experiences for audiences – and new opportunities for studios and filmmakers," said Thomas Kurian, CEO, Google Cloud. "We are honored to play a role in such an ambitious project to bring a classic piece of Americana to an entirely new generation of audiences." Google AI and The Wizard of Oz at Sphere Originally released in 1939, The Wizard of Oz was filmed using what was at the time a revolutionary, three-strip Technicolor 35mm motion picture camera and was only the third Hollywood production to bring this color process to cinema audiences. Google and Sphere are quick to point out that this same film is part of their own attempt to innovate nearly 90 years later. Sphere will bring an immersive version of The Wizard of Oz to its 160,000-square-foot interior display plane, using Google AI alongside traditional VFX and film techniques to expand scenes and enhance characters. Google Cloud and DeepMind are employing Gemini, Veo and Imagen models, as well as Google Cloud infrastructure such as the company's custom AI accelerators, Tensor Processor Units (TPUs), Google Kubernetes Engine (GKE), and more. One technique being used for the film is called “super resolution,” intended to “intelligently enhance” the film's resolution, filling in missing pixels and creating an ultra-crisp 16k image, essential for Sphere's 16k x 16k resolution interior display plane. Other techniques include “outpainting” to expand the film's visual scope for Sphere's immersive environment, and extend the backgrounds and characters, “performance generation” for storytelling techniques that allow multiple characters to remain on screen for extended periods, and context window for ensuring that the enhanced visuals remain consistent throughout the film. "The power of generative AI, combined with Google's infrastructure and expertise, is helping us to achieve something extraordinary," said Jim Dolan, Executive Chairman and CEO, Sphere Entertainment. "We needed a partner who could push boundaries alongside our teams at Sphere Studios and Magnopus, and Google was the only company equipped to meet the challenge on the world's highest resolution LED screen." Previous Facebook LinkedIn Copy link Next

How engineers made the loading conveyor for Ain Dubai — the world's biggest observation wheel — faster, safer, and more efficient. Climb Aboard the World's Tallest Ferris Wheel How engineers made the loading conveyor for Ain Dubai — the world's biggest observation wheel — faster, safer, and more efficient. Edited by EE Staff Attractions Feb 24, 2026 Theme Parks With a diameter of 250 meters, the “Ain Dubai” is the largest and highest Observation wheel in the world. The world’s first concave loading conveyor belt from Sunkid allows around 1,750 visitors an hour to take in the views above Dubai. The Austrian manufacturer Bruckschlögl GmbH is a global market leader in the supply of small ski-lifts and chose inverter drives from Yaskawa for this challenging task. Named after the Arabic word for “eye,” “Ain Dubai” — or "Eye of Dubai" — is a magnificent attraction in the largest city in the United Arab Emirates (UAE). Over 11,000 tons of steel were used in its construction. Each of its spokes are longer than a football field. And each of the 48 luxuriously fitted cabins is larger than two double-decker buses. Another feature of this record-breaking observation wheel — which itself towers over observation wheels in Las Vegas, London, and Singapore — is its special loading conveyor belt, which can move up to 30 percent faster and can thus increase capacity by 30 percent. Furthermore, the loading conveyor belt is also designed as part of the emergency evacuation route. First U-shaped Loading Conveyor Belt Bruckschlögl GmbH, which is headquartered in Bad Goisern in Upper Austria, developed and produced both the belt and the access gate. The company is the main innovation and design location of the Sunkid family of companies. Conveyors from Sunkid (Sunkid Moving Carpet), which were originally developed as ski conveyors are also now used in the amusement park industry and a variety of other applications worldwide. All photos courtesy of Yaskawa. The loading conveyor belt created for “Ain Dubai” is one of the highlights of the company’s solutions to date: it is the first to have a concave U-shape that follows the specific design of the platform. Meanwhile, the design of the antistatic link chains ensures the highest safety standards, silent operation and slip resistance. The chain tensioning eliminates vibrations. Last but not least, a special cleaning feature effectively counters the local climatic conditions in Dubai, including heat, dust, wind, and salty sea air. The overall system conforms to the conveyor belt standard EN 15700. Drive Engineering Challenges Since the Observation wheel turns continuously, the loading conveyor belt optimally adapts the difference in speed between the rotating gondolas and the static platform to achieve the necessary level of safety and the maximum achievable capacity. To do so, the standalone control unit for the loading conveyor belt communicates with the control unit for the Observation wheel and access gate. The normal speed is 0.2 meters per second. Three inverter drives from the Yaskawa GA700 series provide the drive control. Through an internal Modbus bus system, the inverter drives were able to be tightly synchronized with each other. This ensured perfect synchronization between the movements of the while and the belt. The GA700 series offers a high level of connectivity by providing interfaces for all common fieldbuses which enables integration is a wide variety of system environments. This connectivity includes Ethernet/IP, Profibus, Profinet, EtherCAT, Powerlink, CANopen, DeviceNet, CC-Link, and the Yaskawa bus MECHATROLINK. All photos courtesy of Yaskawa. The inverters also feature an integrated RS-485 interface, allowing them to be networked with one another. Up to five inverters can be controlled with a single option card, meaning that fewer cards are required and thus lowering installation costs. These robust and reliable devices meet the high requirements for availability even under particularly challenging climatic conditions. They are able to tolerate operating temperatures up to at least 50° C (122 o F) with no derating. In addition, Yaskawa provides an on-site service, and stocks spare parts in Dubai—as it does in many other markets worldwide. Industrial Drive Versatility The GA700 is the versatile Yaskawa drive for industrial applications in a wide variety of industries. The GA700 inverter series is available in a power range of up to 355 kW and features an outstanding level of user-friendliness along with worldwide standards and maximum reliability. High flexibility, small dimensions and built-in functions make it easy to integrate into practically any application. Intelligent tools such as the startup wizard, data logging, the DriveWizard mobile app, and many more help with setup, startup, and troubleshooting. All photos courtesy of Yaskawa. Functional safety features such as SIL3-compliant STO inputs (Safe Torque Off) and an integrated EMC filter complete the basic equipment of the GA700 inverters. The STO function enables emergency stops to be applied easily and safely. All model variants are designed in protection type IP20 and are correspondingly robust. They are designed for ten years of maintenance-free, continuous operation. For more information: Yaskawa GA70C-GA7000 Series Bruckschlögl GmbH Read more about theme parks and rides >>> Previous Facebook LinkedIn Copy link Next

Solving the challenges of camera noise and face-to-face interactions took some thoughtful engineering, but made all the difference in the final product: the very first one-hundred percent IMAX technology film. Filming 'The Odyssey' in IMAX Required Ingenious Design Fixes Solving the challenges of camera noise and face-to-face interactions took some thoughtful engineering, but made all the difference in the final product: the very first one-hundred percent IMAX technology film. Terry Persun Film and TV Jul 20, 2026 Many of the movies that are said to be filmed in IMAX are only partially filmed using IMAX technology. Christopher Nolan’s “The Odyssey” is different: the whole film was done in IMAX. To be watched properly, IMAX has to be shown on a huge screen (70 x 50 feet) specifically made for the technology, using special projection equipment that can handle the 1.43 to 1 aspect ratio. The best is the 70mm IMAX film projector. In the U.S. there are fewer than 40 screens capable of providing the full IMAX experience. Fewer still are the places that use the 70mm film projectors, because some use two 4K laser projectors to simulate the 70mm experience. Before an IMAX film even gets to the big screen, there are other challenges to contend with: as a highly mechanical system, an IMAX camera is so loud that it interferes with the sound quality of the actors’ dialogue. This is why only part of many IMAX films are shot in the IMAX format. It’s often used for large-scale battle scenes, as the camera is too noisy for close-up scenes. “The Odyssey,” however, has changed the game. According to sources, Christopher Nolan, with help from his engineers, created a housing to dampen the sound of the camera so they could use it for every scene. That’s a big deal, but it came with its own problems. The blimp—as the enclosure is called—weighs close to 400 pounds and is so big that it often sits between two characters who are talking. Even though the camera is positioned perfectly for the scene, the blimp physically blocks the actors’ views of each other. This is a problem because the actors needed to work off of each other’s body language and facial expressions to build that emotional exchange necessary. Seeing each other is important to making the scene realistic and natural. This eyeline, as it’s called, helps with timing, too. In a featurette shared by IMAX and Universal Pictures, the crew talks about how the engineers created a mirror system that allows the characters to see each other even though the huge IMAX camera inside its enclosure is blocking their view. The mirrors allow the characters to see each other and play off of the body and facial cues they’re used to. Where normally the camera adapts to the actors, in this case the actors had to adapt to the camera’s limitations. Both engineered fixes—the blimp and the mirrors—are very specific to the needs of the movie. They are both mechanical, efficient, and—in many ways—ingenious. Design often comes from nothing more than solving a problem with the tools you have, and trying something completely different than has been done before. The clever design fixes on the set of “The Odyssey” are a perfect example of inspired innovation. For information: IMAX The Odyssey Read more camera case studies >>> Previous Facebook LinkedIn Copy link Next

Unique cooling solution is optimized to provide cooling for an electric Vertical Take Off and Landing aircraft capable of traveling flight distances of 1,000 km. Electric VTOL Aircraft Unique cooling solution is optimized to provide cooling for an electric Vertical Take Off and Landing aircraft capable of traveling flight distances of 1,000 km. Terry Persun Cool Stuff Jun 10, 2025 Conflux Technology designs, engineers, and produces additive manufactured heat exchangers for a variety of thermal challenges in multiple industries. Recently, they unveiled a collaboration with AMSL Aero, an Australian aircraft manufacturer involved in building the world’s most efficient long-range zero emissions electrical VTOL aircraft. Also from EE: Electric Race Car Uses 3D-Printed Components Under the first phase of the project to develop hydrogen fuel cell cooling for AMSL Aero’s Vertiia VTOL aircraft, Conflux developed three heat exchanger concepts, each focusing on minimizing weight and volume while managing continuous heat loads and reducing drag. The ultimate goal was to enable flight distances of up to 1,000 km. Already at its second phase, the company will optimize the design and manufacture of a full proof-of-concept assembly to evaluate its performance within Vertiia’s hydrogen fuel cell powertrain. According to Michael Fuller, CEO & Founder of Conflux Technology, ““Hydrogen fuel cells represent a transformative technology in Australia’s pursuit of sustainable energy solutions. We are proud to incorporate our heat exchange technology to enhance the efficiency and performance of Vertiia’s hydrogen fuel cells. Together, we’re advancing innovation in creating world-leading sustainable air transport.” The Conflux cooling solution will be optimized to provide cooling for high transient heat loads experienced during vertical take-off, landing, and hover operations. Weight, performance and packaging size are key constraints for aeronautical hydrogen powertrains. Geometrical freedoms granted by additive manufacturing means heat exchangers for these systems can be lightweight and conform to the space available. Conflux’s unique thin-walled, patented designs deliver thermal performance and low drag. Photo: A closeup of Conflux Fins AMSL Aero chairman Chris Smallhorn said: “In Vertiia we are building a hydrogen-electric aircraft that flies record-breaking distances at Formula 1 speeds, making Conflux Technology, with its storied history of innovation in motorsport and aviation, the perfect partner for us. Conflux’s AS9100D manufacturing and quality certification is critical in enabling Vertiia to become the world’s first long-range passenger-capable hydrogen VTOL.” Working together, the companies are pioneering a future where clean energy and cutting-edge engineering drive the aviation industry toward a greener and more sustainable future. This engagement further expands Conflux’s presence in aerospace applications, leveraging additive manufacturing to develop high-performance heat exchangers for next-generation aviation. Applications now extend across propulsion system cooling, transmission and gearbox cooling, environmental and avionics cooling, and power electronics cooling. As the demand for sustainable solutions accelerates, additive manufacturing is setting new performance benchmarks, delivering advanced thermal management solutions that conventional methods cannot achieve. Watch: News video of the Vertiia For more information: Conflux Technology AMSL Aero Previous Facebook LinkedIn Copy link Next

McCune Audio, full-service technical event specialists, rely on classic 4088s and discreet 4060s to mic guests and props for the renowned conference. TED2014 Uses DPA Microphones McCune Audio, full-service technical event specialists, rely on classic 4088s and discreet 4060s to mic guests and props for the renowned conference. McCune Audio Stage Events Jun 4, 2025 Heard by thousands of people through live audiences, simulcasts, webcasts, and recordings, and millions more through online video engines, the annual TED Conference requires gear that matches its prestige. With discussions that address a wide range of topics within the research and practice of science and culture, microphones are vital to all TED audiences. To provide the ultimate in sound quality for presenters and performers at TED2014, technical team from McCune Audio/Video, the symposium’s sound services company, relies on DPA Microphones’ classic 4088 Directional Headset Microphones and d:screet 4060 Omnidirectional Microphone. TED2014 marks the second time that DPA Microphones is part of the audio setup for the conference. The McCune Audio team used the same selection of mics at last year’s event because of the high-quality audio of both mics and comfortable fit and feel of the 4088, each requests from production crew workers and presenters, respectively. “For years, the post-production crew was trying to get us to reduce the amount of room acoustics we were hearing in the recordings,” says Nick Malgieri, McCune’s Head of Audio for the TED Conference. “Because of the live PA system in the room, there was a slap-back echo always happening in the voice. We really used some pretty extreme processing paths with our previous mics just to try to help us get ahead of the issues. Once we switched to DPA 4088s, the added isolation let us really scale back on the processing. The sound was so much better that the post-production crew asked us to deploy ambient mics to capture the energy of the venue. That led us to the d:screet 4060s, which we use to pick up a lot of the stage noise from the props and scenery on set, such as chalkboards during presentations, a fire organ for a pyrophone performance or a target being hit by an archer.” The versatility of the DPA mics also plays an important role in the audio support at the TED Conference, which hosts 12 90-minute shows over the course of five days. Throughout each of these individual productions, Malgieri and his crew need to mic as many as 10 separate presenters speaking for up to 18-minute segments each. In these instances, the audio team uses the 4088s. The shows also incorporate other types of presentations, such as musical, theatrical or dance performances, or magical acts, which require the 4060s. “The technology setup for this show is very important because of the high turnover and the way the show is actually produced,” explains Malgieri. “We are doing three shows a day, with only an hour or so to reset between them, so we need high-end gear that can keep up with the constant demand and rigorous use.” As one of DPA’s most popular products, the 4088 is ideal for a variety of performing and vocal presentations. It is designed for acoustically demanding live performance environments, where background noise and feedback is a concern, and boasts the same open and natural sound qualities of the company’s other legendary microphones. Originally designed for use with wireless systems in theater, television and close-miked instrument applications, the d:screet 4060 capsule is highly unobtrusive. Because of its small size, this tiny condenser mic exhibits an exceedingly accurate omnidirectional pattern, and therefore does not need to be aimed directly at the sound source to achieve quality pickup. For more information, visit DPA Microphones . Previous Facebook LinkedIn Copy link Next

Pulled from aviation technology for pilot feedback and arcade games like Astro’s Playroom and Cyberpunk 2077, haptic feedback is used in movie trailers — among numerous other applications. Haptic Feedback Rumbles Your iPhone for the F1 Movie Trailer Pulled from aviation technology for pilot feedback and arcade games like Astro’s Playroom and Cyberpunk 2077, haptic feedback is used in movie trailers — among numerous other applications. Terry Persun Film and TV Aug 13, 2025 Sports The latest trailer for F1:The Movie , when viewed in the Apple TV+ App on an iPhone running iOS 18.4 or later, uses haptic feedback to provide the feel of the car engine as it rumbles into life in the pitlane. Keep watching because additional feedback synchronizes with gear changes and tire squeals as the car races around the track. All photos courtesy of AppleTV You’re familiar with haptic feedback by how your smartphone buzzes when someone calls and how game controllers shake, buzz, and rumble to make your experience feel more real. Haptic feedback has been around since the 1970s and is the feedback used on surgical robots so that doctors can maintain their feel of what’s going on during surgery. For this reason, the technology is also used in training simulators where soon-to-be doctors can experience how tissues, veins, and organs feel without using a human body. The automotive industry has incorporated haptic feedback as part of their Advanced Driver Assistance Systems (ADAS) for safety reasons—such as alerting drivers to potential hazards like lane departure and collision warnings. In manufacturing, haptics is used as feedback on robots allowing them to detect when there are product inconsistencies. Subtle variations in the texture of specific products can alert the robot to send an alarm to the supervisor to employ a human to inspect the anomaly. Even interactive product displays are using haptic feedback to allow customers to feel the texture, weight, or other physical properties of a product in a virtual setting. This adds to the information companies can now provide a customer before a purchase is made. The haptic technology market is estimated to be worth over $3.9 Billion. As companies like Apple explore its many applications, this market will only grow larger. And to that end, the new F1: The Movie trailer may be the start of a new experiential way to enjoy all sorts of entertainment. For more information: Apple F1: The Movie Previous Facebook LinkedIn Copy link Next

Stage lighting rigging uses spring cable drums to solve a complex challenge. Creative Rigging Solution for Moveable Nightclub Ceiling Stage lighting rigging uses spring cable drums to solve a complex challenge. Stage Events Jul 28, 2025 Cool Stuff Winner of the bronze vector award in 2024, French company Mecaoctet has created a movable ceiling for a nightclub in the Accor Arena in Paris. For the power supply, the designers rely on slip-ring-free spring cable drums from the igus e-spool series. The vector award jury was highly impressed by the unique technical solution used for the breathtaking light show. All photos courtesy of igus The movable nightclub ceiling consists of a fragmented mirror measuring 16x15 meters, which is divided into 32 triangular elements, 16 of which are movable. Each of these triangles has two mirror surfaces, one at the top and one at the bottom, with the edge consisting of an SRU LED strip. In combination with spotlights, a breathtaking light show with monumental shapes in motion is created above the heads of the guests. The design challenge was to set the triangles in motion and supply the LED strips with power. To solve this complex challenge, the engineering team involved chose to rely on three motorized winches, one at each corner of the triangles. For the power supply, the experts chose slip-ring-free spring cable drums from the igus e-spool series, which are fitted with hybrid cables and connected to the centers of gravity of the triangles. All photos courtesy of igus The stroke for the application is six meters. The speed is 0.5 meters per second. According to Mecaoctet, thanks to the igus solution they were able to avoid using complex coils with rotating collectors—which would have been very expensive and unreliable. Compared to a slider system with cable loops, the solution is also more fail-safe and aesthetically pleasing. The igus e-spool series are able to confine many different cables within a confined space and uniquely combines two different energy supply systems, puts no tensile load on the cables, can supply energy in all directions (horizontal, vertical, and diagonal), and is available for indoor and outdoor applications. Overall, the final design provided accuracy, reliability, and aesthetics. For more information, visit igus and Mecaoctet . Previous Facebook LinkedIn Copy link Next

Using nature as a model, researchers decided to incorporate ultrasound sensors to enable tiny drones to navigate under difficult conditions. Inspired by Bats, New Drones Use Ultrasonic Technology to Navigate Using nature as a model, researchers decided to incorporate ultrasound sensors to enable tiny drones to navigate under difficult conditions. Edited by Terry Persun Cool Stuff Jul 7, 2026 Aerospace Palm-sized drones use ultrasound sensors and a unique form of artificial intelligence to navigate through fog, smoke, and other challenging environmental conditions using limited power. A team led by Worcester Polytechnic Institute (WPI) researcher and assistant professor in the Department of Robotics Engineering, Nitin J. Sanket, has approached drone technology in a new way. Inspired by how bats use sound to navigate and hunt, this advanced approach indicates that ultrasound may be a relevant alternative to existing navigation technologies that add weight and cost to a drone that may also falter when used under poor environmental conditions. Bats can accurately navigate in dark, damp, and dusty caves by sending out short chirps and listening to the weak echoes. According to Sanket, “By creating an ultrasound-based system that needs just two tiny sensors and little computation, we can open up opportunities for small aerial robots to perceive their surroundings, make decisions, and independently operate longer in cluttered, hazardous places where current aerial robots struggle.” These drones are perfect for search-and-rescue operations under highly limited conditions. Sanket’s research focuses on robotics inspired by nature, such as bees and bats. The work featured in Science Robotics was supported by a grant from the National Science Foundation. Most other autonomous drones use sensors, controllers, cameras, a power source, and sophisticated algorithms to perceive their surroundings and make navigational decisions. Some even collect landscape data by analyzing radio waves or light pulses. These methods are power intensive and costly. Plus, darkness, poor weather, and propeller noise can interfere with their operation. All of this takes time and energy. Images courtesy of WPI. The team led by Sanket customized an X-shaped aerial quadrotor drone about six inches wide with ultrasound sensors and a physical barrier call an acoustic shield to dampen propeller noise. Through deep learning techniques, the team trained the device’s computer to analyze weak echo patterns similar to how a bat brain processes sound to decipher echoes. The drone, weighing about one pound, was tested outdoors in a wooded area and indoors in a laboratory furnished with obstacles such as transparent plastic or metal poles. Some indoor tests took place in darkness with black obstacles, while others took place as the researchers blew fog or snow onto the obstacle course. The drone had enough battery power to operate for about five minutes per flight while navigating the course autonomously. Images courtesy of WPI. The researchers reported that the robot had a success rate of between 72- and 100-percent in navigating through challenging courses during 180 tests. The drone was less successful at dodging thin objects, such as metal poles, and it struggled to avoid slender tree branches, which weakly reflected signals. Future work includes using smaller, lighter devices that could fly longer and improve flight speeds. “In a real search-and-rescue mission, a few more seconds of flight time could mean the difference between life and death for a survivor,” Sanket said. Co-authors with Sanket on the research team included, Manoj Velmurugan, MS ’25; Phillip Brush ’24, MS ’25; Colin Balfour ’26, MS ’27; and Richard Przybyla of TDK InvenSense, Berkeley, Calif. The next step for bat-inspired drones may be to use smaller, lighter devices that could fly longer using the team’s low-power ultrasound-based system, Sanket said. Future work could also improve flight speeds. For information: Worcester Polytechnic Institute National Science Foundation TDK InvenSense Read more about drones >>> Previous Facebook LinkedIn Copy link Next

The locomotives will be able to use power from overhead lines, traction batteries, and a new model diesel generator, reducing noise and fumes around maintenance crews. Upgrading Old Diesel Locomotives to Hybrid and Overhead Line Operation The locomotives will be able to use power from overhead lines, traction batteries, and a new model diesel generator, reducing noise and fumes around maintenance crews. Edited by EE Staff Cool Stuff Apr 2, 2026 Swiss-based Müller Technologie is using ABB traction equipment to upgrade old diesel locomotives to hybrid and overhead line operation. This technology will enable three driving modes, giving the locomotives greater flexibility and a new life to meet changing environmental requirements. The capability for zero-emission operation will be especially useful at work sites and in tunnels. While rail is already among the cleanest modes of transportation, there is still considerable potential for improvement. Consequently, the industry is moving towards sustainable solutions that significantly reduce carbon emissions and environmental impact. Müller Technologie’s diesel locomotives are generally used in construction, maintenance, shunting, and cargo services. One of their main tasks on maintenance and construction sites is to supply power for electric tools. Previously, this meant that the diesel engine had to be run in idle mode all the while the locomotive was at the work site. The resulting fumes and noise were an inconvenience, especially in urban areas, tunnels, and during the night. Old diesel locomotive and new hybrid locomotive. All photos courtesy of ABB. Müller Technologie’s innovative Aeam 841 hybrid locomotives are based on the original diesel locomotives and are now being converted to enable the three-mode operation (tribrid). Following the conversion, the locomotives will be able to use power from overhead lines, traction batteries, and a new model diesel generator. Müller approached ABB as a technology partner to help develop the traction chain solution and supply the necessary equipment. The project required high operational reliability and cost efficiency, as well as the need to fit the traction equipment into very limited space. It was also necessary to implement the conversion without modifying the locomotive body, as this would ensure a more straightforward approval process. The existing diesel-electric locomotives had a 920 kW engine powering a generator, with the output fed via a two-level traction converter of 724 kW being upgraded to four motors totaling 1000 kW. During the conversion the diesel engine was replaced with a 500 kW unit capable of running on renewable fuel, and the original electric motors were completely overhauled and retained. Advanced Traction Solution The traction system supplied by ABB consists of BORDLINE® CC1500 AC Compact Converter, eBox, Traction Batteries, and a traction transformer. The BORDLINE Compact Converter is a highly integrated solution which includes a line converter, two traction converters, two auxiliary converters, and a Traction Battery Chopper including low pass filter. Aeam 841 hybrid locomotive. All photos courtesy of ABB. Its three-level traction converters are around 7-9% more energy efficient than the locomotives’ original two-level units. They put less stress on the motor insulation and have lower harmonic losses which means additional energy savings in the motors. The regenerative braking function provides further energy savings by feeding braking energy into the Traction Batteries or overhead line. The eBox provides an interface between the converter and batteries and includes the Battery Management System. The traction batteries are based on LTO (lithium-titanium-oxide) cell technology, which has the advantage of very short charging times. It will be possible to charge the locomotive’s batteries from empty in around 20 minutes, enabling a full recharge during a short break in the working day. The traction batteries can be charged from the overhead line, diesel generator or depot power supply. Sustainability Through Low-Emission Operation The retrofit project prepares the 5 locomotives for a sustainable future and will extend their lifetime by 25 years. The project itself is being implemented on an environmentally-friendly basis, with 28 tons of steel—including the old engine, traction converter, and some body panels—being recycled from each locomotive. As well as retaining the existing motors, the chassis and bogie frames have been overhauled and adapted to meet new requirements. This way, the vehicles are given back to the market as rental locomotives, with important savings of steel. Retrofitting old locomotives with energy efficient technologies aligns with climate protection goals, promoting sustainable rail transport. Hybrid locomotive with overhead line. All photos courtesy of ABB. The locomotives will reduce CO2 emissions to a minimum improving the working conditions of the personnel, by reducing fumes and noise. ABB’s traction chain allows silent operation during the night and in densely populated urban areas. The hybrid locomotives will be capable of operating without the need for external energy sources over several assignments. Müller Technologie has calculated that they can use overhead lines to power 80% of their trips, with the remainder covered by the traction batteries or diesel generator. Overall, diesel consumption is expected to be reduced by up to 85% compared to pre-conversion figures. This equates to 8,500 liters of diesel fuel per locomotive that will be saved every year. The capability to operate emission free at work sites is an important advantage of the new locomotives. The Traction Batteries are therefore not only used for propulsion, but also supply the tools used on site. Adopting sustainable alternatives to traditional diesel engines significantly reduces carbon emissions and helps the rail industry to decarbonize. ABB’s extensive expertise along with the comprehensive traction solutions for sustainable transportation will pave the way for a leaner and cleaner future. For more information: ABB Bordline Compact Converter Müller Technologie AG Previous Facebook LinkedIn Copy link Next