Tootfinder

⚛️ 3D printing reshapes construction for nuclear energy
#energy

3D printing reshapes construction for nuclear energy
In a bold step toward transforming how nuclear infrastructure is built, the Department of Energy's Manufacturing Demonstration Facility, or MDF, at Oak Ridge National Laboratory, in partnership with Kairos Power and Barnard Construction, has successfully developed and validated large-scale, 3D-printed polymer composite forms for casting complex, high-precision concrete structures that would be technically challenging and costly to produce using conventional methods. The concrete forms are being…

Today, Maker Forums Discourse came under fairly heavy spam attack. It took me almost two hours to clean up and shore up our defenses a bit against the next wave.
This attack came from IPs all over the globe, not just from a few poorly-administered ASNs in the developing world as has sometimes happened in the past. One account name made it clear that this was a Fiverr job. 😭
Shout out to

Microsoft launches Copilot 3D, a free AI-powered tool allowing users to transform 2D images into 3D models without a text prompt, available in Copilot Labs (Tom Warren/The Verge)
https://www.theverge.com/hands-on/756587/microsoft-copilot-3d-feature-hands-on

Microsoft’s new Copilot 3D feature is great for Ikea, bad for my dog
Microsoft has created a new Copilot 3D feature. It converts 2D images into 3D models that can be used for 3D printing or in 3D editing software.

From fantasy to science, all in one stream! Join me as I explore Middle-earth in LOTRO while 3D printing the legendary Tiangong-1 Space Station. The only thing better than an epic quest is a real-life space build. #LOTRO #3DPrinting

Finally #3dprinting again. Had some hotend nozzle clogging and learned about different methods to overcome that. Turns out 'cold pull' is best. Now only 2.5 more hours to go. ;)

🪶 3D-printed superconductor achieves record performance with soft matter approach
#cornell …

3D-printed superconductor achieves record performance with soft matter approach
Nearly a decade after they first demonstrated that soft materials could guide the formation of superconductors, Cornell researchers have achieved a one-step, 3D printing method that produces superconductors with record properties.

Printegrated Circuits: Personal Fabrication of 3D Printed Devices with Embedded PCBs
Oliver Child, Ollie Hanton, Jack Dawson, Steve Hodges, Mike Fraser
https://arxiv.org/abs/2509.08459

Printegrated Circuits: Personal Fabrication of 3D Printed Devices with Embedded PCBs
Consumer-level multi-material 3D printing with conductive thermoplastics enables fabrication of interactive elements for bespoke tangible devices. However, large feature sizes, high resistance materials, and limitations of printable control circuitry mean that deployable devices cannot be printed without post-print assembly steps. To address these challenges, we present Printegrated Circuits, a technique that uses traditional electronics as material to 3D print self-contained interactive object…

This sounds like a really cool sci-fi idea: a language model that is special-purpose, cheap and energy efficient and not connected to the internet so it can be built into household appliances. It might be the positive "residue" of an AI bubble crash.
But will those household appliance companies do it? They'd have to let go of their internet connected fridges and data collection. Maybe it'll be the FOSS and 3d-printing community who does it.

Upscaling Tomographic Volumetric 3D Printing via Virtual Stitching of Coordinated Projections
Hossein Safari, S. Kaveh Hedayati, Aminul Islam, Yi Yang
https://arxiv.org/abs/2510.07981

Upscaling Tomographic Volumetric 3D Printing via Virtual Stitching of Coordinated Projections
Tomographic volumetric 3D printing offers layer free, rapid fabrication of objects with high design freedom, but is limited to relatively small curing volumes because of the optical constraints imposed by an assumed need for telecentricity. We present a method to virtually stitch multiple projections from different light sources to build a single workpiece. To avoid the built in requirement for telecentricity and thus the need for an index matching vat, projections are produced by a graphics pr…

*sigh*
Darn those chicken and egg problems.
Killed my 3d-printer's hotend probably by over tightening the nozzle, about to change to another cold/hotend but only now discover that I need two different print head parts. But right now, I don't have a printer capable of printing ABS/ASA...
Anyone with a #3d

Imaging 3D Printed Fracture Networks under Stress using X-Ray Computed Tomography
A. Patsoukis Dimou, Q. Lei, N. Watanabe, A. Suzuki
https://arxiv.org/abs/2508.06541 https://

Imaging 3D Printed Fracture Networks under Stress using X-Ray Computed Tomography
We present a novel experimental approach based on 3D printing and X-ray computed tomography to characterize fracture aperture distribution and evolution in 3D fracture networks under varying stress loading conditions. We validate our methodology by comparing experimentally measured stress-dependent fracture apertures with both analytical solutions and numerical simulations, for both single fracture and fracture network scenarios. We show that, for fracture deformation under linear elastic regim…

ShapeGen3DCP: A Deep Learning Framework for Layer Shape Prediction in 3D Concrete Printing
Giacomo Rizzieri, Federico Lanteri, Liberato Ferrara, Massimiliano Cremonesi
https://arxiv.org/abs/2510.02009 …

ShapeGen3DCP: A Deep Learning Framework for Layer Shape Prediction in 3D Concrete Printing
This work introduces ShapeGen3DCP, a deep learning framework for fast and accurate prediction of filament cross-sectional geometry in 3D Concrete Printing (3DCP). The method is based on a neural network architecture that takes as input both material properties in the fluid state (density, yield stress, plastic viscosity) and process parameters (nozzle diameter, nozzle height, printing and flow velocities) to directly predict extruded layer shapes. To enhance generalization, some inputs are refo…

Curve-based slicer for multi-axis DLP 3D printing
Chengkai Dai, Tao Liu, Dezhao Guo, Binzhi Sun, Guoxin Fang, Yeung Yam, Charlie C. L. Wang
https://arxiv.org/abs/2509.00040 http…

Curve-based slicer for multi-axis DLP 3D printing
This paper introduces a novel curve-based slicing method for generating planar layers with dynamically varying orientations in digital light processing (DLP) 3D printing. Our approach effectively addresses key challenges in DLP printing, such as regions with large overhangs and staircase artifacts, while preserving its intrinsic advantages of high resolution and fast printing speeds. We formulate the slicing problem as an optimization task, in which parametric curves are computed to define both…

Single Fragment Forensic Coding from Discrepancy Theory
Junsheng Liu, Netanel Raviv
https://arxiv.org/abs/2508.03938 https://arxiv.org/pdf/2508.03938

Single Fragment Forensic Coding from Discrepancy Theory
Three-dimensional (3D) printing's accessibility enables rapid manufacturing but also poses security risks, such as the unauthorized production of untraceable firearms and prohibited items. To ensure traceability and accountability, embedding unique identifiers within printed objects is essential, in order to assist forensic investigation of illicit use. This paper models data embedding in 3D printing using principles from error-correcting codes, aiming to recover embedded information from parti…

Turning Hearsay into Discovery: Industrial 3D Printer Side Channel Information Translated to Stealing the Object Design
Aleksandr Dolgavin, Jacob Gatlin, Moti Yung, Mark Yampolskiy
https://arxiv.org/abs/2509.18366

Tonight, we're not just printing—we're building a fleet! Firing up the 3D printer to create a massive Wasp-class amphibious assault ship (LHD). Get ready to see this miniature marvel come to life, layer by layer! #3DPrinting #WASPClass

Formalizing Linear Motion G-code for Invariant Checking and Differential Testing of Fabrication Tools
Yumeng He, Chandrakana Nandi, Sreepathi Pai
https://arxiv.org/abs/2509.00699

Formalizing Linear Motion G-code for Invariant Checking and Differential Testing of Fabrication Tools
The computational fabrication pipeline for 3D printing is much like a compiler - users design models in Computer Aided Design (CAD) tools that are lowered to polygon meshes to be ultimately compiled to machine code by 3D slicers. For traditional compilers and programming languages, techniques for checking program invariants are well-established. Similarly, methods like differential testing are often used to uncover bugs in compilers themselves, which makes them more reliable. The fabrication pi…

🫠 DissolvPCB: Fully Recyclable 3D-Printed Electronics with Liquid Metal Conductors and PVA Substrates
#electronics

DissolvPCB: Fully Recyclable 3D-Printed Electronics with Liquid Metal Conductors and PVA Substrates
We introduce DissolvPCB, an electronic prototyping technique for fabricating fully recyclable printed circuit board assemblies (PCBAs) using affordable FDM 3D printing, with polyvinyl alcohol (PVA) as a water-soluble substrate and eutectic gallium-indium (EGaIn) as the conductive material. When obsolete, the PCBA can be easily recycled by immersing it in water: the PVA dissolves, the EGaIn re-forms into a liquid metal bead, and the electronic components are recovered. These materials can then b…

Additive manufacturing in aluminium of a primary mirror for a CubeSat application: manufacture, testing and evaluation
Ilhan Aziz (UK Astronomy Technology Centre), Younes Chahid (UK Astronomy Technology Centre), Jennifer Keogh (UK Astronomy Technology Centre), James Carruthers (UK Astronomy Technology Centre), Katherine Morris (UK Astronomy Technology Centre), Joel Harman (UK Astronomy Technology Centre), Scott McPhee (UK Astronomy Technology Centre), Eilidh Fraser (UK Astronomy Techno…

Additive manufacturing in aluminium of a primary mirror for a CubeSat application: manufacture, testing and evaluation
Additive manufacturing (AM; 3D Printing), a process which creates a part layer-by-layer, has the potential to improve upon conventional lightweight mirror manufacturing techniques, including subtractive (milling), formative (casting) and fabricative (bonding) manufacturing. Increased mass reduction whilst maintaining mechanical performance can be achieved through the creation of intricate lattice geometries, which are impossible to manufacture conventionally. Further, part consolidation can be …

Robust adaptive fuzzy sliding mode control for trajectory tracking for of cylindrical manipulator
Van Cuong Pham, Minh Hai Tran, Phuc Anh Nguyen, Ngoc Son Vu, Nga Nguyen Thi
https://arxiv.org/abs/2508.05584

Robust adaptive fuzzy sliding mode control for trajectory tracking for of cylindrical manipulator
This research proposes a robust adaptive fuzzy sliding mode control (AFSMC) approach to enhance the trajectory tracking performance of cylindrical robotic manipulators, extensively utilized in applications such as CNC and 3D printing. The proposed approach integrates fuzzy logic with sliding mode control (SMC) to bolster adaptability and robustness, with fuzzy logic approximating the uncertain dynamics of the system, while SMC ensures strong performance. Simulation results in MATLAB/Simulink de…

Today we’re 3D printing a T-REX skull 🦖 — with a working jaw joint!
Because static dinos are extinct.
#3DPrinting #TREX #Makers

X-Part: high fidelity and structure coherent shape decomposition
Xinhao Yan, Jiachen Xu, Yang Li, Changfeng Ma, Yunhan Yang, Chunshi Wang, Zibo Zhao, Zeqiang Lai, Yunfei Zhao, Zhuo Chen, Chunchao Guo
https://arxiv.org/abs/2509.08643

X-Part: high fidelity and structure coherent shape decomposition
Generating 3D shapes at part level is pivotal for downstream applications such as mesh retopology, UV mapping, and 3D printing. However, existing part-based generation methods often lack sufficient controllability and suffer from poor semantically meaningful decomposition. To this end, we introduce X-Part, a controllable generative model designed to decompose a holistic 3D object into semantically meaningful and structurally coherent parts with high geometric fidelity. X-Part exploits the bound…

I predict that @… is going to end up 3d printing our house.

Mass conservation analysis of extrusion-based 3D printing simulations based on the level-set method
Carlos J. G. Rojas, C. A. G\'omez-P\'erez, Leyla \"Ozkan
https://arxiv.org/abs/2508.20617

Mass conservation analysis of extrusion-based 3D printing simulations based on the level-set method
Numerical simulations of extrusion-based printing require tracking evolving material bound- aries, a challenging task due to possible topological changes and mass conservation issues. Inaccurate conservation of mass can lead to a mismatch between the extruded and simulated shapes, and generally to unreliable predictions of the actual ink behavior. This work investigates the mass conservation properties of the conservative level-set method in extrusion-based 3D printing applications. We analyze …

Crosslisted article(s) found for cs.CG. https://arxiv.org/list/cs.CG/new
[1/1]:
- INF-3DP: Implicit Neural Fields for Collision-Free Multi-Axis 3D Printing
Jiasheng Qu, Zhuo Huang, Dezhao Guo, Hailin Sun, Aoran Lyu, Chengkai Dai, Yeung Yam, Guoxin Fang

Materials and Design Strategies of Fully 3D Printed Biodegradable Wireless Devices for Biomedical Applications
Ju-Yong Lee, Jooik Jeon, Joo-Hyeon Park, Se-Hun Kang, Yea-seol Park, Min-Sung Chae, Jieun Han, Kyung-Sub Kim, Jae-Hwan Lee, Sung-Geun Choi, Sun-Young Park, Young-Seo Kim, Yoon-Nam Kim, Seung-Min Lee, Myung-Kyun Choi, Jun Min Moon, Joon-Woo Kim, Seung-Kwon Seol, Jeonghyun Kim, Jahyun Koo, Ju-Young Kim, Woo-Byoung Kim, Kang-Sik Lee, Jung Keun Hyun, Seung-Kyun Kang

Materials and Design Strategies of Fully 3D Printed Biodegradable Wireless Devices for Biomedical Applications
Three-dimensional (3D) printing of bioelectronics offers a versatile platform for fabricating personalized and structurally integrated electronic systems within biological scaffolds. Biodegradable electronics, which naturally dissolve after their functional lifetime, minimize the long-term burden on both patients and healthcare providers by eliminating the need for surgical retrieval. In this study, we developed a library of 3D-printable, biodegradable electronic inks encompassing conductors, s…

Recent Advances in Microfluidics and Bioelectronics for Three-Dimensional Organoid Interfaces
Caroline Ferguson, Yan Li, Yi Zhang, Xueju Wang
https://arxiv.org/abs/2510.12584 ht…

Recent Advances in Microfluidics and Bioelectronics for Three-Dimensional Organoid Interfaces
Organoids offer a promising alternative in biomedical research and clinical medicine, with better feature recapitulation than 2D cultures. They also have more consistent responses with clinical results when compared to animal models. However, major challenges exist in the longevity of culture, the reproducibility of organoid properties, and the development of non-disruptive monitoring methods. Recent advances in materials and microfabrication methods, such as 3D printing and compressive bucklin…

Dwell-Time Model Simulation Assistance for Advancing Iron 3D Nano-Printing of Via Focused Electron Beam Induced Deposition
Sameh Okasha, Stephen McVitie, Trevor P. Almeida
https://arxiv.org/abs/2507.16709

Dwell-Time Model Simulation Assistance for Advancing Iron 3D Nano-Printing of Via Focused Electron Beam Induced Deposition
Focused electron-beam induced deposition (FEBID) has emerged as a powerful technique for shifting from direct-write fabrication of two- to three-dimensional nanostructures, which reflects a broader movement across nanotechnology as a whole. Fields such as nanoelectronics, nanophotonics, and energy storage and harvesting are poised to benefit from a new generation of greener, more versatile, and multifunctional technologies enabled by this transition to 3D structures. The availability of numerou…

A new diffuse reflector filament for additive manufacturing of 3D printing finely-segmented plastic scintillator
S. Berns, E. Boillat, S. Hugon, A. Boyarintsev, B. Grynyov, N. Karavaeva, A. Krech, S. Minenko, T. Sibilieva, M. Sibilyev, A. De Roeck, T. Dieminger, U. Kose, B. Li, A. Rubbia, D. Sgalaberna, T. Weber, J. W\"uthrich, X. Zhao
https://

A new diffuse reflector filament for additive manufacturing of 3D printing finely-segmented plastic scintillator
This study presents the development and characterization of a novel white reflective filament suitable for additive manufacturing of finely segmented plastic scintillators using 3D printing. The filament is based on polycarbonate (PC) and polymethyl methacrylate (PMMA) polymers loaded with titanium dioxide (TiO$_2$) and polytetrafluoroethylene (PTFE) to enhance reflectivity. A range of filament compositions and thicknesses was evaluated through optical reflection and transmittance measurements.…

🫟 Students develop novel multi-metal 3D printing process
#manufacturing

Students develop novel multi-metal 3D printing process
Students at ETH Zurich have developed a laser powder bed fusion machine that follows a circular tool path to print round components, which allows the processing of multiple metals at once. The system significantly reduces manufacturing time and opens up new possibilities for aerospace and industry. ETH has filed a patent application for the machine, and the results are published in the CIRP Annals.

DissolvPCB: Fully Recyclable 3D-Printed Electronics with Liquid Metal Conductors and PVA Substrates
Zeyu Yan, SuHwan Hong, Josiah Hester, Tingyu Cheng, Huaishu Peng
https://arxiv.org/abs/2507.22193

DissolvPCB: Fully Recyclable 3D-Printed Electronics with Liquid Metal Conductors and PVA Substrates
We introduce DissolvPCB, an electronic prototyping technique for fabricating fully recyclable printed circuit board assemblies (PCBAs) using affordable FDM 3D printing, with polyvinyl alcohol (PVA) as a water-soluble substrate and eutectic gallium-indium (EGaIn) as the conductive material. When obsolete, the PCBA can be easily recycled by immersing it in water: the PVA dissolves, the EGaIn re-forms into a liquid metal bead, and the electronic components are recovered. These materials can then b…

🧙‍♂️🎂 It's my birthday, and I'm celebrating by wandering Middle-earth on a Linux-powered PC. Sauron fears penguins, right? 🐧🔥 #LOTRO #LinuxGaming #BirthdayStream

Fast 360{\deg} 3D Metrology for Directed Energy Deposition
James Taylor, Jiazhang Wang, Guanzhong Hu, Zihan Chen, Ping Guo, Florian Willomitzer
https://arxiv.org/abs/2509.05268 …

Fast 360° 3D Metrology for Directed Energy Deposition
Directed Energy Deposition (DED) is a metal additive manufacturing process capable of building and repairing large, complex metal parts from a wide range of alloys. Its flexibility makes it attractive for multiple industrial applications, e.g., in aerospace, automotive and biomedical fields. However, errors or defects introduced at any stage of the printing process can, if undetected, significantly impact the final result, rendering the printed part unusable. Potential in-situ correction method…

GIPPO: A Graph-based, Iterative, Printing-Path Optimization Slicer for Architected Lattices
Pierpaolo Fucile, Maria Kalogeropoulou, Vivek Cherian David, Lorenzo Moroni
https://arxiv.org/abs/2508.21694 …

GIPPO: A Graph-based, Iterative, Printing-Path Optimization Slicer for Architected Lattices
Architected materials of significant geometric complexity offer exceptional mechanical properties that often surpass those of their constituent materials. However, their fabrication through extrusion-based 3D printing remains hindered by suboptimal printing trajectories, which is inherent to commercial slicing software. They produce multiple non-continuous paths that compromise fabrication time, shape fidelity, and structural integrity, particularly for thin-walled lattice structures. To addres…

Crosslisted article(s) found for cs.RO. https://arxiv.org/list/cs.RO/new
[1/2]:
- Curve-based slicer for multi-axis DLP 3D printing
Chengkai Dai, Tao Liu, Dezhao Guo, Binzhi Sun, Guoxin Fang, Yeung Yam, Charlie C. L. Wang

PaMO: Parallel Mesh Optimization for Intersection-Free Low-Poly Modeling on the GPU
Seonghun Oh, Xiaodi Yuan, Xinyue Wei, Ruoxi Shi, Fanbo Xiang, Minghua Liu, Hao Su
https://arxiv.org/abs/2509.05595

PaMO: Parallel Mesh Optimization for Intersection-Free Low-Poly Modeling on the GPU
Reducing the triangle count in complex 3D models is a basic geometry preprocessing step in graphics pipelines such as efficient rendering and interactive editing. However, most existing mesh simplification methods exhibit a few issues. Firstly, they often lead to self-intersections during decimation, a major issue for applications such as 3D printing and soft-body simulation. Second, to perform simplification on a mesh in the wild, one would first need to perform re-meshing, which often suffers…

Replaced article(s) found for cs.ET. https://arxiv.org/list/cs.ET/new
[1/1]:
- TinkerXR: In-Situ, Reality-Aware CAD and 3D Printing Interface for Novices
O\u{g}uz Arslan, Artun Akdo\u{g}an, Mustafa Doga Dogan

Unlocking ceramic 3D printing for next-generation chemical reactors
#materials #chemistry #ceramic #manufacturing

Unlocking ceramic 3D printing for next-generation chemical reactors
Scientists at the U.S. Department of Energy's Oak Ridge National Laboratory have integrated binder jet additive manufacturing with an advanced post-processing method to fabricate leak‐tight ceramic components, overcoming a key challenge of ceramic additive manufacturing.

On design, analysis, and hybrid manufacturing of microstructured blade-like geometries
Pablo Antolin, Michael Barton, Georges-Pierre Bonneau, Annalisa Buffa, Amaia Calleja-Ochoa, Gershon Elber, Stefanie Elgeti, Gaizka G\'omez Escudero, Alicia Gonzalez, Haizea Gonz\'alez Barrio, Stefanie Hahmann, Thibaut Hirschler, Q Youn Honga, Konstantin Key, Myung-Soo Kim, Michael Kofler, Norberto Lopez de Lacalle, Silvia de la Maza, Kanika Rajain, Jacques Zwar

On design, analysis, and hybrid manufacturing of microstructured blade-like geometries
With the evolution of new manufacturing technologies such as multi-material 3D printing, one can think of new type of objects that consist of considerably less, yet heterogeneous, material, consequently being porous, lighter and cheaper, while having the very same functionality as the original object when manufactured from one single solid material. We aim at questioning five decades of traditional paradigms in geometric CAD and focus at new generation of CAD objects that are not solid, but con…

Get ready for some major sci-fi flora! On today's "3D Printing Adventures Penguin Style!", we're turning an AT-AT into a humble pot plant. Because even Imperial walkers need a little green in their lives. Tune in for the shenanigans! #ATAT #StarWarsGardening

🔪 On design, analysis, and hybrid manufacturing of microstructured blade-like geometries
#manufacturing

On design, analysis, and hybrid manufacturing of microstructured blade-like geometries
With the evolution of new manufacturing technologies such as multi-material 3D printing, one can think of new type of objects that consist of considerably less, yet heterogeneous, material, consequently being porous, lighter and cheaper, while having the very same functionality as the original object when manufactured from one single solid material. We aim at questioning five decades of traditional paradigms in geometric CAD and focus at new generation of CAD objects that are not solid, but con…

Today on 3D Printing Adventures Penguin Style!: We're building an AT-AT - Star Wars Plant Pot! Because nothing says "gardening" like a giant, four-legged war machine. May the force (and the filament) be with us! https://www.twitch.tv/tuxramus

From Earth to orbit, one layer at a time. I'm live now, 3D printing the Shenzhou spacecraft! Come join the stream to see this epic space project unfold. #3DPrinting #Shenzhou #Spacecraft