Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 36 for “"3D print"”.
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3D print quality in the context of PLA color
3D printing is a hot topic in manufacturing and a truly useful tool, but it has limitations. Print quality properties - like raft peelability, dimensional tolerance and surface roughness - are hard to calibrate perfectly. A common material used in fused deposition modeling (FDM) printers is …
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3D Printing on Textile Fabrics Based on Material Extrusion
3D print technology has been developed rapidly since 1984. Now there are many types of 3D printing equipment and different techniques available to create a 3D printed object using additive layer by layer processes. 3 popular printing technologies are SLS (Selective Laser Sintering), FDM (Fused …
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Development of 3D-Printed Patient Specific Bolus For Clinical Use In to tal Scalp Irradiation
… develop and validate the use of patient-specific 3D-printed bolus caps for TSI. 3D-printing materials were studied to find materials suitable for use as a bolus cap. Clinical workflows were developed to 3D-print two bolus caps for an anthropomorphic head phantom: one printed using an in-house 3D …
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Exploring fabrication principles for making freeform breadBoards
CurveBoards are 3D breadboards integrated into the surface of physical prototypes. CurveBoards offer both the flexibility of breadboards, i.e., the ability to add or remove components, while also integrating well with the shape of the prototype. Thus, designers can use CurveBoards to test function …
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Applications of Investment Casting as a Manufacturing Process for Injection Mold Tooling
… Complex patterns were designed and 3D printed using castable resin, following manufacturers specifications. Various parameters throughout each step of the casting process, such as part design, 3D print settings, and investment procedures were altered to determine their effect on the …
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Additive Manufacturing for Phase Change Thermal Energy Storage and Management
… filaments for fused filament fabrication 3D-printing, and their subsequent use to 3D-print advanced heat exchange topologies with intricate geometric features.</p>
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A software pipeline for converting 3D models into 3D breadboards
3D breadboards are a new form of physical prototypes with breadboard functions directly integrated into its surfaces. 3D breadboards offer both the flexibility and re-configurability of breadboards, while also integrating well with the shape of the prototype. As a result, 3D breadboards can be used …
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Exploring Novel, Hard, Acoustically Absorbent, Materials
… existing materials and tiles created utilizing 3D print technology and Helmholtz resonators. Additionally, an empirical study of Helmholtz resonator geometry was performed by analyzing the sound absorption of resonant cavity shape changes. Finally, plots of the absorption coefficients for each …
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3-D Printing, Characterizing and Evaluating the Mechanical Properties of 316L Stainless Steel Materials with Gradient Microstructure
… mechanical properties. In this research, we 3D print, characterize and evaluate the mechanical properties of 316L Stainless Steel with a gradient in their microstructure. During 3D printing, the gradient in the microstructure is created by tailoring the processing parameters (hatch spacing, …
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Optically Clear FDM Printing
3D printers are becoming increasingly common in homes and libraries across the country. With it comes a desire to make something, but little direction about what to make. A large percentage of the US population wears glasses, so a project which allows people to 3D print their own glasses would be …
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3D-Printed, Internally Fed Electrospray Thruster
… with in-space manufacturing. Advances in 3D printing technology make it possible to create microstructures at a much lower cost than microfabrication; however, internally fed electrospray thrusters have only been fabricated in a cleanroom so far, primarily due to their high hydraulic …
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Dynamic response of 3D printed beams with damping layers
3D printers are a relatively new technology and they could be used in the future to 3D print structural components in buildings or bridges. The main advantages of using 3D printing would be the optimization of the structures. Effectively, with 3D printers, it is possible to generate polymers with …
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Curing Characteristics of Photopolymer Resin With Dispersed Glass Microspheres in Vat Polymerization 3D Printing
… geometric accuracy, and surface quality of the 3D printed specimen. Dispersing filler material into the photopolymer resin changes its curing characteristics because the filler scatters and absorbs light, which modifies the curing reaction. However, the ability to cure photopolymer resin with …
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Mask Projection Microstereolithography 3D Printing of Gelatin Methacrylate
… cell encapsulation and additive manufacturing (3D printing). However, extrusion based 3D printing is the most common technique used with GelMA. Mask projection microstereolithography (MPµSL or µSL) is an advanced 3D printing technique that can produce geometries with high resolution, high …
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Design, Fabrication, and Validation of 3D Printed, Patient-Specific Compensators For Postmastectomy Radiation Therapy
<p>The purpose of this study was to use 3D printed, patient-specific tissue compensators to overcome the 3D planning limitations for postmastectomy radiation therapy (PMRT). Tissue compensators can be used to reduce dose heterogeneity, hot and cold spots at field junctions, and treatment …
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Processing to Enable Direct-Write Additive Manufacturing of Ceramics and Ceramic Composites
… zirconia (ZrO<sub>2</sub>) pastes were used to print densely filled, large continuous volume (≳ 1 cm<sup>3</sup>) ceramic components. An elastic shear modulus (G’) of 56,000 Pa and yield stresses between 6 and 10 Pa allowed for printed components of 34.5 mm in height over 115 layers without …
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Translating the intimate: digital renderings of bio-matter into material forms through artistic research.
… through both two and three- dimensional print practices: articulations which I read (after Chadwick) as my "Enfleshings"; a virtual fleshy materiality. I also provide a critical analysis of emergent material practices of 3D Print (also known as Additive Layer Manufacture). The exegesis …
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Flight And Symbolic Modeling Of A 3D Printed Ornithopter
… in air. First, a method was developed to 3D print functional flapping wings. The use of 3D printing technology has greatly expanded the possibilities for wing fabrication, allowing wing shapes and structures to replicate those of real insects or virtually any other design. It has also …
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Architecture in the Afternet
… @archmixes with selections from the archive of 3D meshes i have compiled, you can make architecture. Appropriated from 3D models uploaded to Sketchup Warehouse, anyone can make anew from preexisting digitized disciplinary matter. This is a call for the regime of a new six points of architecture: …
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Towards Fibre-Integrated Hydrogels: A New Approach for 3D Hydrogel Printing & A Study of Single Cell-Microfibre Interactions
… on ECM-mimic fibrils. Firstly, a new hydrogel printing strategy, Hydrogel Embedding with Reversible Multiphase Encapsulating System (HERMES), was developed to 3D print chemically-inert and mechanically-robust polyacrylamide (PAAM) based hydrogels. In particular, pre-crosslinked alginate …
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