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 110 for “"3D printer"”.
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Development of Dual Extruder Biomaterial 3D Printer
… and fabrication of a novel dual-extruder biotic 3D printer for the precise deposition of natural biocomposites using organic materials such as pectin, chitosan, and cellulose. Unlike traditional FDM printers that rely on thermoplastic extrusion, this printer employs a syringe-based mechanical …
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Modeling abrasive wear of a 3D printer extruder drive mechanism
Additive manufacturing, more specifically 3D printing using fused filament fabrication (FFF), is a valuable technique; however, little has been done in developing a new mechanism for driving filament through the hot end of the 3D printer. This investigation focuses on a prototype extruder mechanism …
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Design and fabrication of a modular multi-material 3D printer
This thesis presents 3DP-0, a modular, multi-material 3D printer. Currently, 3D printers available on the market are typically expensive and difficult to develop. In addition, the simultaneous use of multiple materials in 3D printing has not been extensively explored. The printer presented in this …
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Development of a 3D Printer for Oxide-free Aluminum Transportation
… encapsulation with water-soluble polymer. A 3d printer was designed and fabricated which creates aluminum-polymer structures that do not oxidize during storage and can achieve a wide range of reaction rates with water by varying the structure surface area. This new approach provides several …
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Design, Fabrication, and Testing of a 3D Printer Based Microfluidic System
… from the use of fused deposition modeling (FDM) 3D printing. The pumping efficiency of the PDMS devices was analyzed through the characterization of the micro-pumps flowrate with respect to the pumps driving pressure and the actuation frequency. Tested at a driving pressure of 10psi, the flowrate …
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Improving Ink Feedback Control System for Vision Controlled Jetting 3D Printer
Vision-Controlled Jetting (VCJ) is one of the 3D-printing techniques that operates by repeatedly depositing photopolymer materials in 2 dimensions onto a printing plane, solidifying them using UV light, and scanning the printing plane’s topography to readjust the printing layer accordingly. It has …
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Analysis of linear motion systems for a large scale FDM 3D printer
3D printers have been around for quite some time in one way or another. Only in resent years with programs such as Reprap, an open source 3D printer that can self replicate a lot of it's own parts, has helped greatly in bringing 3D printing into the price range and homes of hobbyists. When …
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Design of electronics for a high-resolution, multi-material, and modular 3D printer
… a high-resolution, multi-material, and modular 3D printer were designed and implemented. The driver for a piezoelectric inkjet print head can fire its nozzles with one of three droplet sizes ranging from 6 pL to 26 pL at approximately 10 kHz. The system developed for curing photopolymer …
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Eliminating Plastic Waste by Transitioning Machine Shop to Produce Its Own 3D Printer Filament
As 3D printing becomes more popular, the issue of excess plastic grows. In response, companies and hobbyists have developed recycling systems to turn waste material back into 3D printing filament. In the Laboratory for Manufacturing and Productivity (LMP), students use injection-molding and …
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Creation of brain tissue-mimicking material and multi-material gradient 3D printer for magnetic resonance elastography phantom
… Phantom development started with creating a 3D printer to extrude soft materials. The printer was further modified to print two materials separately or in mixed ratios so that stiffness could be varied within a print. A phantom was printed with a low- to high-stiffness gradient using a …
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Design and fabricating of an orthotic insole by using Kinect® XBOX gaming sensor scanner and 3D printer
… using Kinect® XBOX 360 gaming sensor scanner and 3D printer. In order to fulfill medical requirement, it was invented to help medical field to overcome their problem of high 3D scanner cost, handcrafted fabrication, inventory problem, and long fabrication time. In term of process, author had …
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The Study of 3D Micro-fluid Printing in Aqueous Two-phase System
… academia. This thesis is a combination of ATPS, 3D printing, and microfluidics technologies and realizes the printing of biocompatible aqueous structures in another aqueous matrix. The objectives of this thesis include 1) customizing a regular thermal extrusion 3D printer for printing 3D aqueous …
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Macroscale Design and Modeling of Multifluidic Cantilever Devices for Advanced Nanoscale 3D Printing Applications
A reliably functioning nanoscale 3D printer would be revolutionary in the advancement of the field of bioprinting and nanoprinting technologies; it would have many broad ranging potential applications such as the creation of biocompatible medical devices, alleviation of disease/medical …
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Additive Manufacturing of Electrical Machines and Electronic Devices
… have led to successful demonstrations of 3D-printed passive (e.g., resistors, capacitors, inductors) and active (e.g., transistors) electronic components, as well as magnetic cores and power transfer devices. However, each new demonstration of 3D-printed functional devices has typically …
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Custom digital fabrication in industrial design
… dropping. Since the first commercially available 3D printer was released in 1988 by 3D Systems, the technology has advanced and it is possible to by a DIY 3D printer kit for under $1000 from MakerBot Industries. The term digital fabrication is publicized as the next step towards fabricating your …
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Principles of Laser Alignment in Atomic Force Microscopy and its Potential Application for Nanoscale 3D Printing
… recognized, the potential of AFM techniques in 3D printing applications has not been fully explored. In this thesis, we present a detailed process of building a custom Atomic Force Microscope, which has been adapted to an AFM probe with microfluidic channels. The construction process involved …
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Extrusion Based Ceramic 3D Printing - Printer Development, Part Characterization, and Model-Based Systems Engineering Analysis
… thesis is to develop an extrusion based ceramic 3D printing process to digitally produce a casting mold. To achieve the objective, an in-house designed ceramic 3D printer was developed by converting a filament based plastic 3D printer. For mold making applications, zircon was selected because it …
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Ink-gel simultaneous embedded 3D printing
3D printing has improved by leaps and bounds. The gains include both the hardware and software. With 3D printers increasingly becoming staples of many a laboratory and engineering workshop, naturally comes the application of 3D printing to ever more significant issues. Some of these new …
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Robotic-assisted 3D printing for bone defect reconstruction
… may be improved by using robot-assisted 3D printing technologies. To demonstrate the capability of robotic-assisted 3D printing for bone defect reconstruction, this MRes study has been conducted through several steps. Firstly, a 3D laser scanner was used to obtain 3D imaging data of the …
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Interactive Robogami
… robots that can be easily fabricated with a 3D printer. The system leverages a database of examples created by expert roboticists. A composition tool imbedded in this system allows the users to create new designs by composing parts from the robots in this database. The system automatically …
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