Tootfinder

Firestorm Labs, which has contracts with the US DOD for its 3D printed drones, raised a $47M Series A and plans to grow its fleet of airliftable xCell factories (Colin Demarest/Axios)
https://www.axios.com/2025/07/16/firestorm-hp-3d-printing-funding

Exclusive: Drone-printer Firestorm eyes expansion after $47 million round
"We're building out the decentralized factory of the future," Firestorm CEO Dan Magy told Axios.

3D Printing Patterns Might Make Ghost Guns More Traceable Than We Thought https://www.404media.co/3d-printing-patterns-might-make-ghost-guns-more-traceable-than-we-thought/

Two-photon 3D printing of functional microstructures inside living cells
Marusa Mur, Aljaz Kavcic, Uros Jagodic, Rok Podlipec, Matjaz Humar
https://arxiv.org/abs/2506.13232

Two-photon 3D printing of functional microstructures inside living cells
3D printing has revolutionized numerous scientific fields and industries, with printing in biological systems emerging as a rapidly advancing area of research. However, its application to the subcellular level remains largely unexplored. Here, we demonstrate for the first time the fabrication of custom-shaped polymeric microstructures directly inside living cells using two-photon polymerization. A biocompatible photoresist is injected into live cells and selectively polymerized with a femtoseco…

My partner asked for a last minute sign today. 3D printing to the rescue!
Made a sign for today… 3D printed letters, foam core, spray paint… then added a 3D printed handle.
#noKings #resist #resistFascism

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

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.

Strategic Adoption of 3D Printing in Multi-Product Supply Chains: Cost and Capacity Considerations
Mohammad Ebrahim Arbabian
https://arxiv.org/abs/2506.10198

Strategic Adoption of 3D Printing in Multi-Product Supply Chains: Cost and Capacity Considerations
This paper explores the integration of Additive Manufacturing (or 3D printing) into decentralized supply chains, focusing on the strategic decisions manufacturers and retailers make when facing capacity constraints. Using a Stackelberg game framework, we analyze how AM impacts traditional wholesale pricing across two scenarios. First, a manufacturer producing two distinct products and second, a case involving multiple products, each affected by AM's capacity limitations. For the first scenario,…

🫠 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…

A Neutron Sensitive Detector Using 3D-Printed Scintillators
Adam Barr, Cinzia da Vi\`a, Mosst Tasnim Binte Shawkat, Stephen Watts, John Allison, Gabriele D'Amen
https://arxiv.org/abs/2507.08663

A Neutron Sensitive Detector Using 3D-Printed Scintillators
This work reports on the performance of a novel neutron-sensitive scintillating detector fabricated using Fused-Deposition Modelling (FDM) additive manufacturing. FDM is a cost-effective 3D-printing method employing flexible plastic filaments to create custom-shaped components. Scintillating filaments, based on polystyrene doped with \emph{p}-terphenyl and 1,4-bis (5-phenyloxazol-2-yl) benzene, and enriched with $^6$LiF to enable neutron sensitivity were manufactured in house and achieved visib…

One Video to Steal Them All: 3D-Printing IP Theft through Optical Side-Channels
Twisha Chattopadhyay, Fabricio Ceschin, Marco E. Garza, Dymytriy Zyunkin, Animesh Chhotaray, Aaron P. Stebner, Saman Zonouz, Raheem Beyah
https://arxiv.org/abs/2506.21897

One Video to Steal Them All: 3D-Printing IP Theft through Optical Side-Channels
The 3D printing industry is rapidly growing and increasingly adopted across various sectors including manufacturing, healthcare, and defense. However, the operational setup often involves hazardous environments, necessitating remote monitoring through cameras and other sensors, which opens the door to cyber-based attacks. In this paper, we show that an adversary with access to video recordings of the 3D printing process can reverse engineer the underlying 3D print instructions. Our model tracks…

Wow; 3d printing inside a cell:
https://arxiv.org/pdf/2506.13232

3D printing the ship Linda served on. A Wasp Class LHD (USS Boxer!) LIVE on Twitch! 🛳️ Come see this naval giant being made! #3DPrinting

Exploiting complex 3D-printed surface structures for portable quantum technologies
Nathan Cooper, David Johnson, Benjamin Hopton, Matthew Overton, David Stupple, Alexandra Bratu, Edward Wilson, John Robinson, Laurence Coles, Manolis Papastavrou, Lucia Hackermueller
https://arxiv.org/abs/2507.01476

Exploiting complex 3D-printed surface structures for portable quantum technologies
Portable quantum technologies require robust, lightweight apparatus with superior performance. For techniques dependent upon high-vacuum environments, such as atom interferometers and atomic clocks, 3D-printing enables new avenues to tailor in-vacuum gas propagation dynamics. We demonstrate intricate, fine-scale surface patterning of 3D-printed vacuum components to increase the rate at which gas particles collide with the surface. By applying a non-evaporable getter coating for use as a surface…

Novel Design of 3D Printed Tumbling Microrobots for in vivo Targeted Drug Delivery
Aaron C. Davis, Siting Zhang, Adalyn Meeks, Diya Sakhrani, Luis Carlos Sanjuan Acosta, D. Ethan Kelley, Emma Caldwell, Luis Solorio, Craig J. Goergen, David J. Cappelleri
https://arxiv.org/abs/2507.00166

Novel Design of 3D Printed Tumbling Microrobots for in vivo Targeted Drug Delivery
This paper presents innovative designs for 3D-printed tumbling microrobots, specifically engineered for targeted in vivo drug delivery applications. The microrobot designs, created using stereolithography 3D printing technologies, incorporate permanent micro-magnets to enable actuation via a rotating magnetic field actuator system. The experimental framework encompasses a series of locomotion characterization tests to evaluate microrobot performance under various conditions. Testing variables i…

Thanks a lot @…, you’ve turned @… into a 3D-printing nerd. Every conversation has been about 3D-printed items the last few days. 🤣

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 …

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…

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…

@… I think 3d printing is a genuinely very cool thing that has the potential to reduce the consumer market for cheap plastic crap (if used correctly)
my kids think I’m a wizard that can print toys

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

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…

Photonic Origami of Silica on a Silicon Chip with Microresonators and Concave Mirrors
Manya Malhotra, Ronen Ben-Daniel, Fan Cheng, Tal Carmon
https://arxiv.org/abs/2507.04484

Photonic Origami of Silica on a Silicon Chip with Microresonators and Concave Mirrors
3D printing of high-quality silica photonic structures is particularly challenging, as surface roughness at the nanoscale can severely degrade optical performance through scattering losses. Here, we develop a technique to fold ultrasmooth silica on silicon chips into such desired 3D structures. A laser-induced, surface-tension-driven method achieves folding with 20 nm alignment accuracy, enabling origami-like polylines and helices with integrated 0.5 nm-smooth photonic devices. The technique al…

Experimental and simulative study on laser irradiation of 3D-printed micro-structures at intensities relevant for inertial confinement fusion
M. Cipriani, F. Consoli, M. Scisci\`o, A. Solovjovas, I. A. Petsi, M. Malinauskas, P. Andreoli, G. Cristofari, E. Di Ferdinando, G. Di Giorgio
https://arxiv.org/abs/2506.04017

Experimental and simulative study on laser irradiation of 3D-printed micro-structures at intensities relevant for inertial confinement fusion
Inertial confinement fusion requires a constant search for the most effective materials for improving the efficiency of the compression of the capsule and of the laser-to-target energy transfer. Foams could provide a solution to these problems, but they require further experimental and theoretical investigation. The new 3D-printing technologies, such as the two-photon polymerization, are opening a new era in the production of foams, allowing for the fine control of the material morphology. Deta…

3D-Printed Enclosure Wire-Guided Liquid Microfilm for Versatile Spectroscopy
Matthew J. Silverstein, Yasashri Ranathunga, Yuki Kobayashi
https://arxiv.org/abs/2507.02696

3D-Printed Enclosure Wire-Guided Liquid Microfilm for Versatile Spectroscopy
We present a 3D-printing-based design to produce wire-guided liquid microfilms that can be used for versatile spectroscopic applications. We demonstrate the ability of our instrument to provide optically useful liquid microfilms with highly tunable thicknesses over the range 25 - 180 $μ$m, with standard temporal thickness deviation less than 1.0% on the low end of the range of flow rates, and spatially homogeneous microfilms that remain stable over the course of ten hours. We then show the dev…

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

Prediction for today from 2016:
"The United Kingdom is now the region’s foremost knowledge-based economy. We lead the world in biotech, law, education, the audio-visual sector, financial services and software. New industries, from 3D printing to driverless cars, have sprung up around the country."
https://www.

What Britain looks like after Brexit
You’re reading Reaction.

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…

Look @… :)
From: @…
https://mastodon.social/@je…

Cheryl Lindo Jones (@jezlyn@mastodon.social)
Angehängt: 1 Bild I love 3D printing. Yesterday I didn’t have an external grip for my Playdate. Today I do! (And it works pretty well) #3DPrinting #gaming #Playdate

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…

I shy away from the "Apple philosophy" with all my might, but there are many companies that apply it. I have a high-end 3D printer with a closed ecosystem, nothing that frightens an Apple user, but it terrifies me. Why? Because a simple (bad) printing bed costs more than 120 euros.
It's not a question of whether I can afford it, it's that I don't want to do it.
Fuck them, I'm going to get a Chinese one (and probably better) for half the price.

Confocal Raman microscopy inside sessile multicomponent droplets
Alexander Erb, Johanna Steinmann, Youngeun Lee, Robert W. Stark
https://arxiv.org/abs/2507.00208

Confocal Raman microscopy inside sessile multicomponent droplets
Evaporating multicomponent droplets are ubiquitous and appear in a variety of everyday situations and technological applications, including coating, 3D printing, and energy conversion processes. During evaporation, concentration gradients are typically induced, resulting in flows within the droplets. Many of the mechanisms underlying multicomponent droplet evaporation are not fully understood. However, most methods utilize markers that can be surface active and thus affect droplet dynamics. Thu…

High Light-Efficiency Holographic Tomographic Volumetric Additive Manufacturing using a MEMS-based Phase-only Light Modulator
Maria Isabel \'Alvarez-Casta\~no, Ye Pu, Christophe Moser
https://arxiv.org/abs/2506.02578

High Light-Efficiency Holographic Tomographic Volumetric Additive Manufacturing using a MEMS-based Phase-only Light Modulator
Light-based 3D printing, which relies on photocurable resins, has shown the capability to produce complex geometries with high resolution and fidelity. Tomographic Volumetric Additive Manufacturing (TVAM) employs a digital micromirror device (DMD) to project high-speed sequences of amplitude light patterns into a rotating resin volume, enabling rapid fabrication of 3D structures through photopolymerization. Typically, the light projection efficiency in such binary amplitude modulator-based syst…

This https://arxiv.org/abs/2504.01195 has been replaced.
initial toot: https://mastoxiv.page/@ar…

Towards Signed Distance Function based Metamaterial Design: Neural Operator Transformer for Forward Prediction and Diffusion Model for Inverse Design
The inverse design of metamaterial architectures presents a significant challenge, particularly for nonlinear mechanical properties involving large deformations, buckling, contact, and plasticity. Traditional methods, such as gradient-based optimization, and recent generative deep-learning approaches often rely on binary pixel-based representations, which introduce jagged edges that hinder finite element (FE) simulations and 3D printing. To overcome these challenges, we propose an inverse desig…

Join "3D Printing Adventures Penguin Style" today! We're channeling the Force (and our 3D printer) to create an awesome Darth Vader plant pot. Don't miss it! #StarWarsFans

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

Contact point geometry governs structural build-up at rest in Portland cement-limestone blends
Luca Michel, Antoine Sanner, Franco Zunino, Robert J. Flatt, David S. Kammer
https://arxiv.org/abs/2507.14029

Contact point geometry governs structural build-up at rest in Portland cement-limestone blends
The early stiffening of fresh cement paste plays a key role in shaping and stability during casting and 3D printing. In Portland cement systems, this phenomenon arises from the formation of calcium-silicate-hydrate (C-S-H), which stiffens grain-to-grain contacts. However, the role of powder characteristics such as particle size and morphology remains poorly understood. Here, we vary the fineness and grain shape by blending Portland cement with either coarse or fine limestone, leveraging the aff…

Transforming our printer into a bio-booster! Today, we're 3D printing a Guyver unit. Join "3D Printer Adventures" to see this sci-fi marvel come to life! #GuyverUnit

Preparing for the Coos County Fair bonsai show! We're 3D printing a special battlefield-damaged Stormtrooper helmet plant pot today. Join "3D Printer Adventures" to see this unique piece come to life! https://www.twitch.tv/tuxramus

Overprinting with Tomographic Volumetric Additive Manufacturing
Felix Wechsler, Viola Sgarminato, Riccardo Rizzo, Baptiste Nicolet, Wenzel Jakob, Christophe Moser
https://arxiv.org/abs/2507.13842

Overprinting with Tomographic Volumetric Additive Manufacturing
Tomographic Volumetric Additive Manufacturing (TVAM) is a light-based 3D printing technique capable of producing centimeter-scale objects within seconds. A key challenge lies in the calculation of projection patterns under non-standard conditions, such as the presence of occlusions and materials with diverse optical properties, including varying refractive indices or scattering surfaces. This work focuses on demonstrating a wide variety of overprinting scenarios. First, utilizing a telecentric …

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

Get ready to guess! We're 3D printing a surprise for our viewers today. Join the stream and watch the mystery unfold piece by piece! #3DPrint

Today's stream is all about bringing a bonsai drip pot to life! We're 3D printing an oval drip pot for those tiny trees. Hopefully, it's more Zen than Z-wobble! Tune in! #3DPrinting #Bonsai #LiveStream

Creating a beautiful Wood Style Plant Pot with the perfect soundtrack: 80s synthwave! ✨ Join the 3D printing stream on Twitch and unwind with us. #3DPrint