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485 results for “3D Printing”
Data from: Evaluation of the Laguerre-Gaussian mode purity produced by 3D-printed microwave spiral phase plates
Computer-aided design software and additive manufacturing provide flexibility in the direct fabrication of multi-material devices. This design and fabrication versatility has been investigated for the manufacture of dielectric spiral phase plates (SPP) to generate electromagnetic waves with helical wave-fronts. Three types of SPPs designed to produce an orbital angular momentum (OAM) mode number l=|1| were additively manufactured using multi-material extrusion and multijet fabrication methods. The phase mode and mode characteristics of transformed helical microwaves as a function of the SPP geometrical features was investigated experimentally in the 12 to 18 GHz frequency range, providing high purity at characteristic frequencies. The SPPs were further combined with an additively manufactured dielectric lens that provided a marked improvement in OAM mode purity. Finally, multiplexing and de-multiplexing of two OAM modes were demonstrated successfully using the optimum SPP geometry and design.
Knightly Medieval Barracks For 3D Print Model
Knightly medieval barrack for 3d printing Every detail is checked and has no mesh errors, guaranteed to be 3D printed. Size: Hight 34 mm (1,34 inches) length Y 61 mm (2,4 inches) length X 55 mm (2,17 inches) Also you can customize the size in the print settings of the model of your 3D printer. The model does not need support elements, so after printing the model will be ready for use. Source: Objaverse 1.0 / Sketchfab
Viking Utility Knife FREE - 3D print ready
When I first saw a one-piece metal knife I found it very interesting, especially the twisted handle to give a better grip. So I decided to create my own version of the Viking Utility Knife (also called a blacksmith knife) for 3D Printing. I also made a game asset version, if you are interested, check my profile. Measurements (X, Y, Z): 300mm / 69mm / 13mm. 11.8 In / 2.71 In / 0.5 In. Social media. https://linktr.ee/Santiago_RS Cheers. Source: Objaverse 1.0 / Sketchfab
Žatec synagogue exteriror - 3D print preview
Žatec synagogue exteriror - edit for 3D print preview full set of other Synagogue models: https://sketchfab.com/matousekfoto/collections/zatec-synagogue Commissioned by https://synagoga-zatec.cz @ Žatec, CZ • https://goo.gl/maps/o6Qn3AxxDhHQbhRP7 Burnt down by nazis, used as a warehouse during communist era. To become an art center soon. Project with https://sketchfab.com/jaromirharna and https://sketchfab.com/kubacpetr Photogrammetry scan (drone + dlsr, 2000+ photos) + Reality capture • Source: Objaverse 1.0 / Sketchfab
Mosin rifle details for 3D print
(Модель для предварительного просмотра - ударник ("BOYoK2.obj")) Эта детализированная модель карабина Мосина образца 1938 года предназначена для 3Д-печати. Приклад, внутренности магазина, шомпол (распечатанный будет хрупким), пружины, ложевые кольца и т. д. Вам придётся делать самостоятельно. Может потребоваться надфиль/наждачная бумага для подгонки деталей. Для подвижности затвора его нужно будет смазать. Я напечатал модель в масштабе 1/2 (длина ствола ("STVOL OChEN NOVYJ.obj") - 255 мм). Детали подавателя сделал самостоятельно из 2-мм листа алюминия, боевую пружину извлёк из шариковой ручки, плоские пружины (для спускового крючка, отсечки, выбрасывателя и подавателя) достал из пульта для радиоуправляемой машинки Сделано в "Autodesk Maya" Source: Objaverse 1.0 / Sketchfab
FDM 3D Printing Specimens Scan - Parts A--C
<p>Dataset from experiment on infill and printing orientation for its influence on surface quality, object stability and geometrical fidelity. FDM 3D printed specimens ("dogbone") with ABS plastics, scanned on a Canon LiDE 210 scanning device with resolutions between 600 and 4800 DPI. Supplemental Material.</p>
Tensile test results for 3D printed unidirectional composites reinforced with continuous fibres
Open the record for dataset details and reuse information.
3D Printed Living Bacterial Cellulose and Biopolymer Composite Material Samples
<p>The images in this dataset were captured during an experiment initiated on 13 March 2023 at CITA, at the Royal Danish Academy, School of Architecture. The experiment was performed on 3d printed samples made from a material combining living cellulose-producing bacteria with a biopolymer composite. The biopolymer composite combines a xantham gum binder, glycerol and calcium chloride with cellulose fillers sourced from side and waste streams materials. During the experiment, the dormant bacterial cellulose was reawakened through the spraying of tea nutrient at timed intervals of 30 minutes for 2 seconds, for a period of 42 days.</p><p> </p>
01. Cabildo - 3D Printing
Model for 3D Printing made for an AR App. 3ds Max & Zbrush https://www.artstation.com/juanmilanese Source: Objaverse 1.0 / Sketchfab
Data from: Ultra-uniform, strong and ductile 3D printed titanium alloy through bifunctional alloy design
<p>Coarse columnar grains and heterogeneously distributed phases commonly form in metallic alloys produced by three-dimensional (3D) printing and are often considered undesirable because they can impart non-uniform and inferior mechanical properties. We demonstrate a design strategy to unlock consistent and enhanced properties directly from 3D printing. Using Ti−5Al−5Mo−5V−3Cr as a model alloy, we show that adding molybdenum (Mo) nanoparticles promotes grain refinement during solidification and suppresses the formation of phase heterogeneities during solid-state thermal cycling. The microstructural change due to the bifunctional additive results in uniform mechanical properties and simultaneous enhancement of both strength and ductility. We demonstrate how this alloy can be modified by a single component to address unfavourable microstructures, providing a pathway to achieve desirable mechanical characteristics directly from 3D printing.</p>
Heterolayered carbon allotrope architectonics via multi-material 3D printing for advanced electrochemical devices
<p>3D printing has become a powerful technique in electrochemistry for fabricating electrodes, thanks to readily available conductive nanocomposite filaments, such as those based on carbon fillers (i.e., carbon nanotubes (CNTs) or carbon black (CB)) within an insulating polymeric matrix like polylactic acid (PLA). Inspired by inorganic heterostructures that enhance the functional characteristics of nanomaterials, we fabricated hetero-layered 3D printed devices based on carbon allotropes using a layer-by-layer assembly approach. The heterolayers were customised through the alternate integration of different carbon allotrope filaments via a multi-material 3D printing technique, allowing for a time-effective method to enhance electrochemical performance. As a first demonstration of applicability, CNT/PLA and CB/PLA filaments were utilised to construct ordered hetero-layered carbon-based electrodes. This contrasts with conventional methods where various carbon species are mixed in the same composite-based filament used for building electrochemical devices. Multi-material 3D-printed carbon electrodes exhibit improved electrochemical performance in energy conversion (e.g., hydrogen evolution reaction or HER) and sensing applications (e.g., ascorbic acid detection) compared to single-material electrodes. This work paves the way for manufacturing advanced 3D-printed heterolayered electrodes with enhanced electrochemical activity through multi-material 3D printing technology.</p>
Roll-to-roll, high-resolution 3D printing of shape-specific particles
<p>Particle fabrication has attracted recent attention due to its diverse applications in bioengineering, drug and vaccine delivery, microfluidics, granular systems, self-assembly, microelectronics, and abrasives. Herein we introduce a scalable, high-resolution, 3D printing technique for the fabrication of shape-specific particles based on roll-to-roll continuous liquid interface production (r2rCLIP). We demonstrate r2rCLIP using single-digit, micron-resolution optics in combination with a continuous roll of film (in lieu of a static platform), enabling the rapidly permutable fabrication and harvesting of shape-specific particles from a variety of materials and complex geometries, including geometries not possible to achieve with advanced mould-based techniques. We demonstrate r2rCLIP production of mouldable and non-mouldable shapes with voxel sizes as small as 2.0 × 2.0 μm<sup>2</sup> in the print plane and 1.1 ± 0.3 μm unsupported thickness, at speeds of up to 1,000,000 particles per day. Such microscopic particles with permutable, intricate designs enable direct integration within biomedical, analytical and advanced materials applications.</p>
Results of the mechanical characterization by tensile tests and the in vitro cell-biomaterial interaction analyses by WST-1 and Live/Dead of 3D-printed scaffolds generated by PLA, PCL, FF, FD and GelMA
<p>Dataset containing the quantitative results of the mechanical characterization, and the in vitro cell-biomaterial interaction analyses with neural cells after 72 hours and 7 days of cell culture of the following 3D printed scaffolds:</p> <ul> <li>Polylactic acid (PLA)</li> <li>Polycaprolactone (PCL)</li> <li>Conductive Filaflex (FF)</li> <li>Flexdym (FD)</li> <li>GelMA (G)</li> </ul> <p>The Live/Dead results were quantified using ImageJ software to determine area fractions corresponding to live (green) and dead (red) cells.</p>
3D-Printed Pulsator to Enhance Mass Transfer in Electrochemical Reactors HardwareX submission
<p>This repository contains CAD drawing, data, Python codes, and Arduino sketch files for submission to HardwareX journal titled "3D-Printed Pulsator to Enhance Mass Transfer in Electrochemical Reactors". The CAD file can be open with FreeCAD 1.1.0dev or newer. Python codes were used to analyzed and generate figures from electrochemical data for the publication. Arduino sketch files were use for controlling the electrical motor used in the experimental setup for the publication.<br><br>The abstract of the publication is provided below.<br><br>This study presents a cost-effective diaphragm pulsator, constructed for approximately €500, designed to enhance mass transport in laboratory electrochemical reactors. The pulsator allows accurate control of pulsation frequency between 1 Hz and 6 Hz and displacement volume, with simple programmability using an Arduino microcontroller. The design features multiple chambers that effectively isolate corrosive liquids from the mechanical components, ensuring durability and extended operational life. The pulsator's 3D-printed components can be customized with different materials to suit various applications. Engineered to generate a pulsating flow profile that closely resembles a sinusoidal wave, video tracking analysis confirmed the sinusoidal nature of the flow, demonstrating consistent flow profile generation with adjustable frequency and amplitude. The maximum volume displacement achieved was 11.9 mL, which was reduced to 2.0 mL when the electrochemical cell was connected. Limiting current experiments with a ferri/ferrocyanide electrolyte showed that the mass transport coefficient of a typical cell increased from 2.3 × 10⁻³ cm/s under constant flow to 4.5 × 10⁻³ cm/s under pulsating conditions. These findings validate that the adjustable, Arduino-programmable sinusoidal pulsation generated by the diaphragm pulsator offers a practical and customizable method for enhancing mass transport in small-scale electrochemical reactors. </p>
Experimental dataset on basal stresses and seismic signals generated by granular flows moving on a 3D-printed bumpy substrate
<p>This dataset provides the data supporting the experimental study of granular flows moving on a 3D-printed bumpy substrate considering the response of basal stresses and seismic signatures.</p> <p>S1_video clips_the side-view of the kinematic behaviors of the granular flows tracked by a high-speed camera.</p> <p>S2_data_stress and seismic signals measured at the instrumented plate</p> <p>S3_data_example of velocity fields downstream and normal to the base<br>S4_data_propagation features of the flow characterized by basal stresses and seismic signals<br>S5_data_variations of the depth-averaged velocity of the granular flows and corresponding nondimensionalized downslope velocity profiles<br>S6_data_profiles of the velocity of the granular flows normal to the base along with their depth-averaged velocities in the basal layers<br>S7_data_ nondimensionalized shear rates of the granular flows for various particle diameters <br>S8_data_depth-averaged shear rates and corresponding inertial numbers for granular flows with different particle sizes<br>S9_data_the mean normal stress and shear stress and stress fluctuations normal and tangential to the base<br>S10_data_characteristics of seismic signals in terms of peak amplitude, mean envelope, seismic deviation factor, and the signal mean frequency<br>S11_data_effective basal friction coefficient and equivalent friction coefficient as functions of particle diameter<br>S12_data_relationships between nondimensionalized normal stress fluctuations and nondimensionalized basal vertical velocity, inertial number, effective basal friction coefficient and equivalent friction coefficient of the flows.<br>S13_data_seismic deviation factor as functions of nondimensionalized normal stress fluctuations, inertial number, effective basal friction coefficient and equivalent friction coefficient</p> <p>S14_data_Comparison of effective basal friction coefficient μ_b and that scaled by the nondimensionalized basal vertical velocity.</p>
Data from: Passive sampling of environmental DNA in aquatic environments using 3D-printed hydroxyapatite samplers
<p>The study of environmental DNA released by aquatic organisms in their habitat offers a fast, non-invasive and sensitive approach to monitor their presence. Common eDNA sampling methods such as water filtration and DNA precipitation are time consuming, require difficult-to-handle equipment and partially integrate eDNA signals. To overcome these limitations, we created the first proof of concept of a passive, 3D-printed and easy-to-use eDNA sampler. We designed the samplers from hydroxyapatite (HAp samplers), a natural mineral with a high DNA adsorption capacity. The porous structure and shape of the samplers were designed to optimise DNA adsorption and facilitate their handling in the laboratory and in the field. Here we show that HAp samplers can efficiently collect genomic DNA in controlled set-ups, but can also collect animal eDNA under controlled and natural conditions with yields similar to conventional methods. However, we also observed large variations in the amount of DNA collected even under controlled conditions. A better understanding of the DNA-hydroxyapatite interactions on the surface of the samplers is now necessary to optimise the eDNA adsorption and to allow the development of a reliable, easy-to-use and reusable eDNA sampling tool.</p>
CAD file and chromatographic data for determination of diclofenac in wastewater using a 3D printed immunosorbent device
<p>CAD file of the 3D-printed device (in FreeCAD) and chromatographic data for determination of diclofenac in wastewater associated to Fig. S5 (in CSV) of the paper "A 3D printed spinning cup-shaped device for immunoaffinity solid-phase<br> extraction of diclofenac in wastewaters" published in Microchimica Acta 2022 (DOI:10.1007/s00604-022-05267-9.)</p>
Density driven flow in porous media by 3D print_measured data
<p>Density-driven convection in porous media constructed with 3D printed porous blocks were performed. This dataset is the measured total dissolved MEG and flux across the top interface.</p>
Resilient 3D-Printed Infrastructure with Engineered Cementitious Composites (ECC)
<p>Conventional construction of reinforced concrete structures is slow, labor-intensive, and expensive. 3D printing holds great potential to assist engineers and architects in constructing fast and economical yet complex representational infrastructures. One of the most significant barriers to the broader adoption of concrete 3D printing in civil infrastructure is the difficulty of providing printed structural components with reinforcement to achieve sound structural performance under different loading conditions. Hence, it is essential to design concrete that can be utilized as a rebar-free material by considering strength and ductility. Recently, the development of Engineered Cementitious Composites (ECC) has neared the possibility to achieve both strength and ductility in the concrete structures without embedding steel reinforcement. ECC has been offered to enhance the problem related to the ductility and low tensile strength of traditional concrete and Fiber Reinforced Composite (FRC). As such, the implementation of intrinsically reinforced cementitious materials has the potential to address this barrier in the reinforcement of 3D-printed concrete and yields significant benefits such as an enhanced structural capacity, durability, and resiliency. This project proposes the development of ECC materials utilizing readily available ingredients in Region 6 with rheological characteristics tailored specifically for 3D printing applications. Furthermore, the project aims to conduct a comprehensive evaluation of the hardened properties of 3D-printed ECC specimens, including mechanical tests.</p>
The dataset for an article - An Evaluation of 3D-Printed Materials' Structural Properties Using Active Infrared Thermography and Deep Neural Networks Trained on the Numerical Data
<p>Dataset used in the research presented in the article:</p> <p>Szymanik, Barbara. 2022. "An Evaluation of 3D-Printed Materials’ Structural Properties Using Active Infrared Thermography and Deep Neural Networks Trained on the Numerical Data" <em>Materials</em> 15, no. 10: 3727. https://doi.org/10.3390/ma15103727</p> <p>The database in the .mat (matlab) format contains arrays of double type related to: A - original thermograms obtained for the plate made with the 3D printing technique Ar - thermograms with ROI included FITorg - approximation of original thermograms ImDiff, ImInt, ImProp - data obtained after subtracting the approximation.</p>
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.