3d printing Archives - Gizmochina

New light-based 3D printing builds millimeter-scale objects in fraction of a second

Debasish — Tue, 17 Feb 2026 07:07:54 +0000

A research team from Tsinghua University says it has developed a 3D printing method capable of fabricating millimeter-scale objects in under a second, which is a dramatic improvement over most current volumetric techniques.

The work, published in Nature, introduces a system the team calls digital incoherent synthesis of holographic light fields, or DISH. The approach focuses on generating a complete three-dimensional light pattern inside a stationary resin volume, rather than building an object layer by layer.

Many existing volumetric printing methods, such as computed axial lithography (CAL), rely on rotating either the light source or the sample while projecting patterns into photosensitive resin. That rotation adds mechanical complexity and can limit speed and stability. It also often requires thicker resins to prevent printed structures from drifting before they solidify.

The DISH method removes rotation of the resin container altogether. Instead, the system uses a rapidly rotating optical periscope, reportedly spinning up to 10 times per second, to project multiple light patterns from different angles. These patterns are generated by a digital micromirror device and directed into the resin through a single flat optical interface.

By combining these projections in quick succession, the system forms a full 3D light intensity distribution that cures the entire structure nearly at once.

According to the paper, millimeter-scale objects can be printed in as little as 0.6 seconds. The reported volumetric printing rate reaches 333 cubic millimeters per second, with minimum feature sizes around 12 micrometers. The team also reports maintaining approximately 19-micrometer resolution across a one-centimeter depth, which exceeds the typical depth-of-field limits of standard optics.

To achieve this, the researchers used iterative optimization of holographic patterns for each projection angle, refining how light energy accumulates within the resin volume.

The technology is still at the experimental stage, but the potential applications are broad. High-speed fabrication at this scale could be relevant for micro-optical components, small robotic systems, flexible electronics, and biomedical scaffolds.

Whether DISH becomes commercially viable remains to be seen. But as a proof of concept, it pushes the boundaries of what rapid additive manufacturing can look like.

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Research Team in China is Now 3D-Printing Aircraft Parts, Starting with 1.5m-long Landing Gear

Anubhav — Thu, 14 Mar 2024 00:00:00 +0000

When 3D printers first started becoming mainstream, no one would’ve thought that people would 3D print aircraft components out of all things. However, it actually happened. Wuhan, China, is at the forefront of this achievement, producing the world’s first 3D-printed “piston rod axle” for landing gear.

The 3D Printing machine integrates casting, forging and milling – all of it!

This massive T-shaped component is visually indistinguishable from its traditionally made metal counterpart, measuring 1.5 meters long and weighing 240 kg. The key lies in overcoming a 3D-printing hurdle: creating parts prone to cracks. Professor Zhang Haiou’s team at Huazhong University cracked the code in 2019 with a new 3D printing machine that integrates casting, forging, and milling. This overcomes limitations by bridging the gap between traditional manufacturing processes.

The benefits are more than just substantial. Professor Haiou says that there’s a 90% material reduction compared to traditional methods, leading to significant cost savings and environmental advantages. Testing confirms the 3D-printed parts are even stronger than traditionally made components. Rigorous testing has confirmed its resilience.

This achievement marks a major milestone. Currently, only a few countries can produce large aircraft landing gear. Wuhan Tianyu Intelligent Manufacturing, the company behind the innovation, is the first to 3D-print such a critical part.

Wuhan Tianyu is a leader in 3D printing, with a history of collaborating with industry giants. This innovation has the long-term potential to completely revolutionize aircraft manufacturing by offering a more cost-effective and environmentally friendly approach. It will be hard to convince people to fly in a 3D-printed aircraft one day, that’s for sure. But so was the case with the first passenger flight in 1914. Let’s hope one day, 3D-printed aircraft are safe enough for commercial flights.

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Apple Testing 3D Printing to Reduce Price of Steel Apple Watch Series 9 Models

Oğuz Çakır — Thu, 31 Aug 2023 23:17:13 +0000

Technology continues to advance and make our lives easier. This progress brings things that might have once been prohibitively expensive or nearly impossible right into the comfort of our homes. For example, consider how much it would have cost you 20 years ago to manufacture a product you designed yourself, using cheap material like plastic. Today, thanks to 3D printers, you can do this at affordable prices.

People from all around the world are using this technology for various purposes, from creating figurines to making objects they need. I’m even thinking of redesigning the legs of my chairs so that my robotic vacuum cleaner can easily go under them and clean. It seems that it’s not just ordinary users who are looking to benefit from this technology. According to a Bloomberg report, Apple is testing 3D printing for the steel cases of their Watch Series 9 models. Here are the details…

Apple Testing 3D Printing for Steel Apple Watch Series 9 Models

Of course, when you hear “Apple and 3D printer” don’t think of the home-use products sold online. The company has been conducting R&D for a long time to accelerate production and reduce costs. Industrial 3D Steel printers could be the solution that the US tech giant needs. In fact, Mark Gurman has mentioned that this technology could be used in the production of the Apple Watch Series 9, which is set to be introduced at the iPhone 15 event on September 12.

Traditionally, Apple produces its steel Watch models using a process called forging. This involves creating small steel blocks slightly larger than the finished product. The metal is then cut to the required shape using CNC, leaving off cuts. 3D printing, on the other hand, uses a “powdered substance” which is shaped using heat and pressure into something closer to the final product. The resulting case “feels like steel” with some additional milling required to finalize the case.

Latest reports says that Apple is still in the early stages of testing 3D printing for its Apple Watch models. It is not yet clear if the new method will be used in the final products. However, the report says that Apple is interested in the potential benefits of 3D printing, such as reduced waste and faster manufacturing times.

It is worth noting that Apple is not the only company exploring the use of 3D printing for smartwatches. Companies, such as Samsung and Fossil, are also developing 3D printing techniques for their smartwatches. It is unclear for now who will be the leader in this technology.

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Scientists Achieve Breakthrough in 3D Printed Miniature Beating Heart Chamber

Anubhav — Wed, 28 Jun 2023 04:16:10 +0000

According to recent news from IT Home, a team of scientists at the University of Erlangen-Nuremberg in Germany has accomplished a remarkable feat in the field of 3D printing technology. As reported by the British publication “New Scientist,” these researchers successfully created a miniature heart chamber using 3D printing, capable of autonomously beating for over 100 days.

The 3D Printed Heart continued to beat for 100 days autonomously

The groundbreaking experiment involved the use of human cardiomyocytes, collagen, and hyaluronic acid, combined to form a unique “biological ink.” This specialized ink was then carefully injected into a gel-supported cardiac tissue structure using a nozzle. Once printed, the gel solidified, resulting in the creation of an authentic artificial heart chamber.

Typically, a complete human heart is composed of four chambers, with the cardiac chambers located at its base. The scientists managed to 3D print tiny heart chambers, measuring a mere 14 millimeters in height and 8 millimeters in diameter. These miniature chambers, approximately one-sixth the size of real human heart chambers, exhibited remarkable functionality. They began beating just a week after printing and continued to beat autonomously for an impressive 100-day period.

In their future endeavours, the researchers aim to inject a second bio-ink into these microchambers. This innovative approach will enable the growth of blood vessels within the chambers, ultimately paving the way for the printing of a completely functional heart.

This achievement builds upon the growing impact of 3D printing technology in the field of life sciences. British scientists recently made headlines by successfully implanting a conductive circuit into a living organism using 3D printing. This breakthrough paves the way for potential future research in the exciting field of brain-computer interfaces.

While these advancements are undoubtedly remarkable, it is important to note that the utilization of external jump links contained in this article, including hyperlinks, QR codes, and passwords, serve the purpose of conveying supplementary information and saving time. Readers should approach these resources as references for further exploration.

As the field of 3D printing continues to evolve, breakthroughs like these hold great promise for revolutionizing healthcare and advancing medical science, offering hope for millions of patients worldwide awaiting organ transplantation.

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A Synthetic Heart Valve that Grows with the Person shows Promise for Children

Anubhav — Thu, 08 Jun 2023 05:01:02 +0000

What is the FibraValve, and why was it designed in the first place? Here’s the Why: Strep throat is a common childhood illness in the United States, but in less wealthy countries, it can lead to rheumatic fever, a condition that causes inflammation and can damage the heart valves. To address this problem, a team led by Kevin Kit Parker at the Wyss Institute and Harvard’s John A. Paulson School of Engineering and Applied Sciences has developed an implantable heart valve called FibraValve that grows with a child, reducing the need for invasive surgeries.

The Synthetic Heart Valve can be manufactured in under 10 minutes

The FibraValve represents a significant advancement in the field, as detailed in a recent research publication in Matter. The researchers utilized a new method called focused rotary jet spinning (FRJS) to manufacture the synthetic heart valve in under 10 minutes. FRJS allows for customization of the valve’s shape and properties down to the nanoscale, and the valve has shown promising results in studies involving living cells in vitro and in large animal models.

The goal of the FibraValve is to provide a blueprint for the patient’s native cells to regenerate their own living valve tissue. By using FRJS, the team hopes to not only address valve diseases in children but also establish a platform for fabricating other medical devices in the future. The innovative manufacturing process involves extruding a biocompatible synthetic polymer through a nozzle and spinning it into long nanofibers, which are collected on a heart-valve-shaped mandrel to create the valve.

The team’s previous synthetic heart valve, JetValve, demonstrated successful implantation in a sheep’s heart and the regeneration of new tissue on the device. Building on this achievement, the researchers focused on improving various aspects of the valve, including manufacturing, fiber material, and geometric design. By incorporating streams of focused air into the polymer-extruding process, they developed FRJS to enhance the rate of fiber deposition and improve the valve’s final shape.

In addition, the team used a new polymer material, called PLCL, to enhance cell infiltration once the FibraValve is implanted. The PLCL FibraValves proved to be softer and more elastic than their predecessors. The researchers optimized the geometry of the valve’s inner leaflets to minimize blood leakage, successfully reducing the leakage rate from approximately 30% to about 13% with their improved design.

To assess the performance of the FibraValve, the researchers implanted it into a living sheep’s heart using minimally invasive surgery. The valve exhibited immediate functionality, with its leaflets opening and closing synchronously with each heartbeat. Over the course of just one hour, the team observed the infiltration of red and white blood cells as well as the deposition of fibrin protein on the valve’s porous scaffolding. The implantation process caused no damage or issues.

The team plans to conduct longer-term animal testing to further evaluate the FibraValve’s regenerative capabilities and performance. They believe that FRJS has the potential to create a wide range of implantable devices, such as other valves, cardiac patches, and blood vessels.

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Europe’s largest 3D-printed building will take just 140 hours to complete

Joane — Tue, 09 May 2023 20:43:54 +0000

The construction of Europe’s largest 3D-printed building is currently underway in Germany, and according to experts, the project will take only several days, or approximately 140 hours, to complete.

Heidelberg Materials is supplying a unique 3D concrete printing material for the construction of the largest 3D-printed building in Europe, which is currently being built in Heidelberg, Germany. The building, which will serve as a data center, is scheduled to be finished by the end of July 2023.

source:heidelbergmaterials

According to Hans-Joerg Kraus, the developer of the 3D-printed building project in Heidelberg, the construction of the 55-meter-long, 11-meter-wide, and 9-meter-high building will be completed in just 140 working hours, and it is possible that in the future, only one person will be required to oversee the construction site

Heidelberg Materials is supplying i.tech 3D, a 100% recyclable material, for the construction of this building. The use of this material offers increased design freedom and enables up to 70% less material usage while ensuring safe work on the construction site. It also has a lesser carbon footprint as compared to traditionally used Portland cement.

When asked about the future of 3D printing, the company expressed confidence in the bright future of 3D printing technology, though it accepted that not all construction projects will be suitable for 3D printing, including those that require special architectural features that cannot be achieved with conventional means.

While Kraus and his team are currently evaluating other construction projects that could use 3D printing technology, he emphasized that not all construction in the next 20 years will come from a 3D printer.

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3D Printing Electronics Inside Living Organisms, The Future of Medical Implants

Anubhav — Wed, 12 Apr 2023 06:40:02 +0000

3D bioprinting is a cutting-edge technology that enables the fabrication of living tissues and organs using a specialized 3D printer. It involves the precise layer-by-layer deposition of biomaterials and living cells to create complex three-dimensional structures that mimic the architecture and function of natural tissues and organs. This technology has the potential to revolutionize the fields of regenerative medicine, drug discovery, and personalized healthcare by allowing researchers to create functional tissues and organs for transplant, drug testing, and disease modelling. However, another new implication of 3D bioprinting has come to light.

Printing electronic devices inside the human body is no longer just a thing of science fiction. Scientists have demonstrated a breakthrough in 3D printing technology by creating conductive circuits inside living organisms. The discovery was made by John Hardy at Lancaster University in the UK and his colleagues, who published their research in the latest issue of “Advanced Materials Technology”.

In experiments with Caenorhabditis elegans, a tiny worm with a simple nervous system, metal nanoparticles were deposited in circuits or patterns using a custom-made 3D printer and a weak electric current, while fluorescent dyes were added to the nanoparticles to enable the circuit to glow.

The technology could enable the creation of electronic devices inside living organisms, such as brain-computer interfaces or neurostimulators. The devices could be used to treat neurodegenerative or nervous system-related disorders, and to monitor physiological signals or chemical reactions within the body. Further development and testing are required, but the breakthrough has enormous implications for medical research and treatment.

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Relativity Space 3-D Printed Rocket Failed to Reach Orbit

Anubhav — Fri, 24 Mar 2023 04:31:51 +0000

3-D printed rockets represent an exciting advancement in the field of aerospace engineering. This manufacturing technique allows for the creation of complex geometries and intricate designs that would be difficult to produce using traditional manufacturing methods. With 3-D printing, rockets can be built more quickly, with fewer parts and less waste. This technology also enables more customization and optimization of the rocket’s components, resulting in improved performance and reliability. However, practicality still seems a little far off for 3-D printed rockets, as showcased in the recent launch of the same.

Relativity Space has made progress with its 3D-printed rocket after a successful launch from Cape Canaveral. The Terran 1 vehicle took off on Wednesday, although it failed to reach orbit after the second-stage engine ignited only momentarily. Despite the setback, the company remains positive and considers the mission an accomplishment. The rocket withstood Max-Q, the moment when the most stress is placed on the 3D-printed design. It was also carrying the first metal produced from Relativity’s 3D printing system.

Relativity’s previous two launch attempts were troubled by problems, including cooling propellant and software flaws. The company is using the expendable Terran 1 to demonstrate the viability of its 3D printing technique ahead of the reusable Terran R rocket’s planned 2024 launch. Relativity aims to create simpler, more reliable and cheaper rockets that can be ready within weeks. This could significantly reduce the cost of delivering satellites and experiments into orbit.

Relativity faces increasing pressure to complete testing, as it already has contracts to launch OneWeb satellites and Impulse Space’s commercial Mars mission. With competitors such as SpaceX, Blue Origin and Rocket Lab, setbacks limit Relativity’s chances of winning business. Nevertheless, the successful launch represents progress and the company promises updates in the coming days as it seeks to further develop its 3D printing technique.

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