![]() Image via Max Planck Institute for Medical Research.Huckle%27s. While you’re here, why not subscribe to our YouTube channel? Featuring discussion, debriefs, video shorts, and webinar replays.Īre you looking for a job in the additive manufacturing industry? Visit 3D Printing Jobs for a selection of roles in the industry.įeatured image shows concept to form compact acoustic 3D pressure images. To stay up to date with the latest 3D printing news, don’t forget to subscribe to the 3D Printing Industry newsletter, follow us on Twitter, or like our page on Facebook. What engineering challenges will need to be tackled in the additive manufacturing sector in the coming decade? What does the future of 3D printing for the next ten years hold? “We wanted to use them to create something.” “Ultrasonic frequencies are already being used in destructive procedures like laser ablation of tissues and tumors,” said Muthukumaran Packirisamy, a professor in Concordia’s Department of Mechanical, Industrial, and Aerospace Engineering. This leads to the creation of intricately designed geometries that cannot be accomplished using current methods. Their study, which is detailed in a published paper, explains how the method employs sound waves to generate sonochemical reactions in tiny cavities. Researchers also found that making parts vibrate at 20 kHz with ultrasound “significantly improved recycled layer adhesion.”Ĭoncordia University scientists introduced a novel direct sound printing (DSP) approach that employs ultrasound waves to produce intricate and precise objects. Even though the first models made with a nozzle temperature of 230☌ had surface flaws, the engineers found that raising this parameter to 270☌ and slowing down the print speed fixed these problems. After granulating used ABS and extruding it into a 1.75 mm filament, the UTeM study started 3D printing samples with a prototype FFF machine that was fitted with a piezoelectric transducer to make it more stable through ultrasound vibration. Engineers were able to make recycled ABS stronger by attaching two piezoelectric transducers to a standard gantry Fused Filament Fabrication (FFF) 3D printer. ![]() ![]() Researchers at Universiti Teknikal Malaysia Melaka (UTeM) created a 3D printer that can create more resilient parts from recycled ABS. Were ultrasound technologies used in 3D printing before? Image via Max Planck Institute for Medical Research. To overcome this challenge, the researchers used GPU acceleration and Google’s TensorFlow software.ĭespite the technology’s limitations, such as being constrained by the power of sound waves and requiring materials that can resist gravity, the new 3D printing method represents a “promising step forward” in the field of sound wave-based 3D fabrication. Heiner Kremer, a member of the team who wrote the necessary computer programs, says that digitizing a 3D object into ultrasound hologram fields takes a lot of computing power, so a new way to do computations had to be made. However, this presents a computational challenge as the memory requirements increase with the third dimension, and the wavefield needs to be computed for the entire volume. Melde said that making 3D shapes with sound waves requires complex algorithms and multiple holographic fields that interact with each other. This technology can be used with a variety of materials and may have medical applications, such as drug delivery and tissue engineering. The team was able to test the method by putting together tiny particles and cells into specific shapes faster than with traditional 3D printing. The research introduces a novel method of creating precise 3D shapes through the use of multiple “acoustic holograms,” which resemble sound blueprints. Additionally, the non-contact remote assembly feature helps maintain sterility, which can keep cells healthy. The study’s lead author, Kai Melde, highlights the potential of ultrasound-based 3D printing technology for assembling biological cells, as it is gentle and non-toxic to cells. Image via Max Planck Institute for Medical Research.Ĭreating 3D shapes with ultrasound holograms Concept to form compact acoustic 3D pressure images. By doing this, the researchers hope to open up new possibilities in fields like biomedicine, where being able to make very precise and complex structures could be very useful. Multiple acoustic holograms are used in the study to make pressure fields that can be used to 3D print solid particles, gel beads, and even living cells. The new study is published in the journal of Advanced Sciences. Researchers at the Max Planck Institute for Medical Research and Heidelberg University have been investigating the “touchless 3D printing” concept to improve precision and 3D printing speed.
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