3D Printing of NiZn ferrite/ABS Magnetic Composites for Electromagnetic Devices

2015 ◽  
Vol 1788 ◽  
pp. 29-35 ◽  
Author(s):  
Yunqi Wang ◽  
Flynn Castles ◽  
Patrick S. Grant
Keyword(s):  
3D Printing ◽  
Computer Aided Design ◽  
Lattice Structure ◽  
Electromagnetic Properties ◽  
Fused Deposition Modelling ◽  
Magnetic Composites ◽  
Microwave Frequencies ◽  
Fused Deposition ◽  
Electromagnetic Devices ◽  
Aided Design

ABSTRACT3D printing is a versatile fabrication method that offers the potential to realize complex 3D devices with metamaterial characteristics in a single process directly from a computer aided design. However, the range of functional devices that might be realized by 3D printing is limited by the current range of materials that are compatible with a given 3D printing process: fused deposition modelling (FDM), which is a widely used 3D printing method, typically employs only common thermoplastics. Here we describe the development of a magnetic feedstock based on polymer-ferrite composite that is compatible with FDM. The feasibility of the technique is demonstrated by the permittivity and permeability measurement of direct printed blocks and the fabrication of a complex 3D diamond-like lattice structure. The development of printable magnetic composites provides increased design freedom for direct realization of devices with graded electromagnetic properties operating at microwave frequencies.

Animal orthosis fabrication with additive manufacturing – a case study of custom orthosis for chicken

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Wiktoria Maria Wojnarowska ◽  
Jakub Najowicz ◽  
Tomasz Piecuch ◽  
Michał Sochacki ◽  
Dawid Pijanka ◽  
...  
Keyword(s):  
Veterinary Medicine ◽  
Additive Manufacturing ◽  
Computer Aided Design ◽  
Three Dimensional ◽  
Fused Deposition Modelling ◽  
Content Type ◽  
Fused Deposition ◽  
Secondary Objective ◽  
Traditional Manufacturing ◽  
Aided Design

Purpose Chicken orthoses that cover the ankle joint area are not commercially available. Therefore, the main purpose of this study is to fabricate a customised temporary Ankle–Foot Orthosis (AFO) for a chicken with a twisted ankle using computer-aided design (CAD) and three-dimensional (3D) printing. The secondary objective of the paper is to present the specific application of Additive Manufacturing (AM) in veterinary medicine. Design/methodology/approach The design process was based on multiple sketches, photos and measurements that were provided by the owner of the animal. The 3D model of the orthosis was made with Autodesk Fusion 360, while the prototype was fabricated using fused deposition modelling (FDM). Evaluation of the AFO was performed using the finite element method. Findings The work resulted in a functional 3D printed AFO for chicken. It was found that the orthosis made with AM provides satisfactory stiffen and a good fit. It was concluded that AM is suitable for custom bird AFO fabrication and, in some respects, is superior to traditional manufacturing methods. It was also concluded that the presented procedure can be applied in other veterinary cases and to other animal species and other parts of their body. AM provides veterinary with a powerful tool for the production of well-fitted and durable orthoses for animals. Research limitations/implications The study does not include the chicken's opinion on the comfort or fit of the manufactured AFO due to communication issues. Evaluation of the final prototype was done by the researchers and the animal owner. Originality/value No evidence was found in the literature on the use of AM for chicken orthosis, so this study is the first to describe such an application of AM. In addition, the study demonstrates the value of AM in veterinary medicine, especially in the production of devices such as orthoses.

scholarly journals Desain dan Pembuatan Prototype Piston Honda MEGAPRO FI Menggunakan 3D Printing

2020 ◽  
Vol 1 (2) ◽  
pp. 81-91
Author(s):  
Frince Marbun ◽  
Richard A.M. Napitupulu
Keyword(s):  
3D Printing ◽  
Computer Aided Design ◽  
Fused Deposition Modeling ◽  
Layer By Layer ◽  
Printing Technology ◽  
3D Printing Technology ◽  
Fused Deposition ◽  
Deposition Modeling ◽  
Manufacturing Technologies ◽  
Aided Design

3D printing technology has great potential in today's manufacturing world, one of its uses is in making miniatures or prototypes of a product such as a piston. One of the most famous and inexpensive 3D printing (additive manufacturing) technologies is Fused Deposition Modeling (FDM), the principle FDM works by thermoplastic extrusion through a hot nozzle at melting temperature then the product is made layer by layer. The two most commonly used materials are ABS and PLA so it is very important to know the accuracy of product dimensions. FDM 3D Printing Technology is able to make duplicate products accurately using PLA material. FDM machines work by printing parts that have been designed by computer-aided design (CAD) and then exported in the form of STL or .stl files and uploaded to the slicer program to govern the printing press according to the design. Using Anet A8 brand 3D printing tools that are available to the public, Slicing of general CAD geometry files such as autocad and solidwork is the basis for making this object. This software is very important to facilitate the design process to be printed. Some examples of software that can be downloaded and used free of charge such as Repetier-Host and Cura. by changing the parameters in the slicer software is very influential in the 3D printing manufacturing process.

scholarly journals Rancang Bangun dan Simulasi 3D Printer Model Cartesian Berbasis Fused Deposition Modelling

2021 ◽  
Vol 5 (2) ◽  
pp. 53
Author(s):  
Romario A Wicaksono ◽  
Eddy Kurniawan ◽  
M Khalid Syafrianto ◽  
Ramadhani Fadelandro Suratman ◽  
M Ridho Sofyandi
Keyword(s):  
Computer Aided Design ◽  
Fused Deposition Modelling ◽  
3D Printer ◽  
The Finite Element Method ◽  
Printing Process ◽  
Fused Deposition ◽  
Three Stages ◽  
Printer Model ◽  
Aided Design ◽  
Method Show

<p><em>The process of designing and manufacturing a Cartesian 3D printer model based on Fused Deposition Modelling (FDM) is carried out to produce a 3D printer machine that can perform the printing process accurately and quickly. In this research, the process is divided into three stages, namely designing using Computer-Aided Design (CAD) software, printing and assembling components of a 3D printer machine, and analysing the mechanical structure of a 3D printer machine. This 3D printer is designed to carry out the printing process with an area of 180x180x150 mm. Some components of 3D printing machines use Polylactic Acid (PLA). The simulation results based on the Finite Element Method show that the 3D printer engine is feasible to produce printing with a mass of 40% of the maximum possible load.</em></p>

scholarly journals Accuracy of chair-side fused-deposition modelling for dental applications

2019 ◽  
Vol 25 (5) ◽  
pp. 857-863
Author(s):  
Fusong Yuan ◽  
Yao Sun ◽  
Lei Zhang ◽  
Yuchun Sun
Keyword(s):  
Computer Aided Design ◽  
Three Dimensional ◽  
Production Method ◽  
Fused Deposition Modelling ◽  
Content Type ◽  
Fused Deposition ◽  
3D Data ◽  
Dental Model ◽  
Aided Design ◽  
Dental Applications

Purpose The purpose of this paper is to establish a chair-side design and production method for a tooth-supported fixed implant guide and to evaluate its accuracy. Design/methodology/approach Three-dimensional (3D) data of the alveolar ridge, adjacent teeth and antagonistic teeth were acquired from models of the edentulous area of 30 patients. The implant guides were then constructed using self-developed computer-aided design software and chair-side fused deposition modelling 3D-printing and positioned on a dental model. A model scanner was used to acquire 3D data of the positioned implant guides, and the overall error was then evaluated. Findings The overall error was 0.599 ± 0.146 mm (n = 30). One-way ANOVA revealed no statistical differences among the 30 implant guides. The gap between the occlusal surface of the teeth covering and the tissue surface of the implant guide was measured. The maximum gap after positioning of the implant guide was 0.341 mm (mean, 0.179 ± 0.019 mm). The implanted axes of the printed implant guide and designed guide were compared in terms of overall, lateral and angular error, which were 0.104 ± 0.004 mm, 0.097 ± 0.003 mm, and 2.053° ± 0.017°, respectively. Originality/value The results of this study demonstrated that the accuracy of a new chair-side tooth-supported fixed implant guide can satisfy clinical requirements.

Novel topological design of 3D Kagome structure for additive manufacturing

2018 ◽  
Vol 24 (2) ◽  
pp. 261-269 ◽  
Author(s):  
Rong Wang ◽  
Jianzhong Shang ◽  
Xin Li ◽  
Zhuo Wang ◽  
Zirong Luo
Keyword(s):  
3D Printing ◽  
Computer Aided Design ◽  
Fused Deposition Modeling ◽  
Lattice Structure ◽  
Topology Design ◽  
Original Structure ◽  
Compression Tests ◽  
Content Type ◽  
Fused Deposition ◽  
And Topology

Purpose This paper aims to present a new topology method in designing the lightweight and complex structures for 3D printing. Design/methodology/approach Computer-aided design (CAD) and topology design are the two main approaches for 3D truss lattices designing in 3D printing. Though these two ways have their own advantages and have been used by the researchers in different engineering situations, these two methods seem to be incompatible. A novel topology method is presented in this paper which can combine the merits of both CAD and topology design. It is generally based on adding materials to insufficient parts in a given structure so the resulting topology evolves toward an optimum. Findings By using the topology method, an optimized-Kagome structure is designed and both 3D original-Kagome structure and 3D optimized-Kagome structure are manufactured by fused deposition modeling (FDM) 3D printer with ABS and the compression tests results show that the 3D optimized-Kagome has a higher specific stiffness and strength than the original one. Originality/value The presented topology method is the first work that using the original structure-based topology algorithm other than a boundary condition-based topology algorithm for 3D printing lattice and it can be considered as general way to optimize a commonly used light-weight lattice structure in strength and stiffness.

scholarly journals Advances in Orthotic and Prosthetic Manufacturing: A Technology Review

Materials ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 295 ◽  
Author(s):  
Jorge Barrios-Muriel ◽  
Francisco Romero-Sánchez ◽  
Francisco Javier Alonso-Sánchez ◽  
David Rodríguez Salgado
Keyword(s):  
Rapid Prototyping ◽  
Manufacturing Process ◽  
Computer Aided Design ◽  
Manufacturing Industry ◽  
Selective Laser Sintering ◽  
Fused Deposition Modelling ◽  
Fused Deposition ◽  
Laminated Object Manufacturing ◽  
Body Shapes ◽  
Aided Design

In this work, the recent advances for rapid prototyping in the orthoprosthetic industry are presented. Specifically, the manufacturing process of orthoprosthetic aids are analysed, as thier use is widely extended in orthopedic surgery. These devices are devoted to either correct posture or movement (orthosis) or to substitute a body segment (prosthesis) while maintaining functionality. The manufacturing process is traditionally mainly hand-crafted: The subject’s morphology is taken by means of plaster molds, and the manufacture is performed individually, by adjusting the prototype over the subject. This industry has incorporated computer aided design (CAD), computed aided engineering (CAE) and computed aided manufacturing (CAM) tools; however, the true revolution is the result of the application of rapid prototyping technologies (RPT). Techniques such as fused deposition modelling (FDM), selective laser sintering (SLS), laminated object manufacturing (LOM), and 3D printing (3DP) are some examples of the available methodologies in the manufacturing industry that, step by step, are being included in the rehabilitation engineering market—an engineering field with growth and prospects in the coming years. In this work we analyse different methodologies for additive manufacturing along with the principal methods for collecting 3D body shapes and their application in the manufacturing of functional devices for rehabilitation purposes such as splints, ankle-foot orthoses, or arm prostheses.

Precision Manufacturing Process of Parts Realized by FDM Rapid Prototyping

2013 ◽  
Vol 581 ◽  
pp. 292-297 ◽  
Author(s):  
Ludmila Novakova-Marcincinova ◽  
Jozef Novak-Marcincin ◽  
Miroslav Janak
Keyword(s):  
Rapid Prototyping ◽  
Computer Aided Design ◽  
Three Dimensional ◽  
Scale Model ◽  
Fused Deposition Modelling ◽  
Fused Deposition ◽  
Technology Preparation ◽  
Basic Characteristics ◽  
Aided Design ◽  
Selection Of

Rapid Prototyping (RP) can be defined as a group of techniques used to quickly fabricate a scale model of a part or assembly using three-dimensional computer aided design (CAD) data. What is commonly considered to be the first RP technique, Stereolithography, was developed by 3D Systems of Valencia, CA, USA. In this contribution are presented basic characteristics and problems in area of technology of Rapid Prototyping with use of Fused Deposition Modelling. It belongs to methods of precision model creation based on geometry obtained from CAD environment. Chapters are focused on optimization of FDM technology preparation process with aim of maximal precision of the parts. There also is algorithm that leads to selection of suitable settings for these problems. There are outputs in form of graph and tables accumulating information directly affecting precision aspects of manufacturing.

scholarly journals Entwicklung und Realisierung neuer Designs zur Nutzung als Knochenersatzmaterial mittels Fused-Deposition-Modelling-3D- Druck

2021 ◽  
Author(s):  
◽  
Jonas Neijhoft
Keyword(s):  
Tissue Engineering ◽  
Computer Aided Design ◽  
Fused Deposition Modelling ◽  
Fused Filament Fabrication ◽  
Fused Deposition ◽  
Computer Aided ◽  
Osteogene Differenzierung ◽  
Aided Design ◽  
Physikalische Eigenschaften

Die Therapie langstreckiger Knochendefekte stellt auch weiterhin eine große Herausforderung dar. Dies beruht unter anderem darauf, dass der therapeutische Goldstandard - die Verwendung von autogener Knochensubstanz aus dem Beckenkamm - neben der begrenzten Verfügbarkeit vor allem Komplikationen im Bereich der Entnahmestelle mit sich bringen kann. Es wurde bisher aber noch kein durchschlagendes Ergebnis in der Entwicklung neuer Scaffolds zum Einsatz bei langstreckigen Knochendefekten erreicht. Dies kann eine Vielzahl an Ursachen haben, die sich von der verwendeten Ausgangssubstanz, bis hin zum verwendeten Design erstrecken können. Neben dem Ausgangsmaterial spielen vor allem die Formgebung und physikalische Eigenschaften, wie Porosität und Mikroarchitektur, eine wichtige Rolle. Ein aktueller Ansatz zur Nutzung als alternatives Knochenersatzmaterial ist das Knochen-Tissue-Engineering. Hierbei werden körpereigene, knochen-regenerative Zellen mit einem dreidimensionalen Gerüststoff (Knochenersatzmaterial oder -scaffold) kombiniert und in den Knochendefekt implantiert. In dieser Arbeit wurde der Fokus auf die Designentwicklung eines neuen Kochenersatz-Scaffolds gelegt. Nach Vorbild schon vorgestellter Knochenersatzdesigns und unter Berücksichtigung einer Grundstruktur, die auch Phasen der Knochenheilung wie die Frakturhämatomausbreitung und initiale Nährstoffversorgung einbeziehen sollte, wurden mehrere Designs (Raster, Tempel, Zwiebel) entwickelt. Mithilfe des additiv extrusionsbasierten Schmelzschichtverfahrens (Fused Filament Fabrication) wurden die in Computer-Aided Design entworfenen Scaffolds realisiert. Dieser Ansatz beinhaltet, unter Verwendung des resorbierbaren und biokompatiblen Trägerpolymers Polylaktat, mehrstufige Designs, die kleine biologisch funktionelle Einheiten in eine tragende, kompressionsfeste Rahmenstruktur einbetten. Hierdurch entsteht einerseits die nötige mechanische Belastbarkeit und andererseits eine offene Architektur mit Poren, die Diffusion von Sauerstoff und Nährstoffen in die inneren Bereiche des Implantats ermöglicht. Es wurden verschiedene Designs entwickelt, gedruckt und mechanisch sowie in vitro in den Kernbereichen Zelladhäsion, Zellaktivität und osteogene Differenzierung nach Besiedelung mit Saos-2-Zellen charakterisiert. Ein weiterer Entwicklungsschritt stellte das Einführen eines neuartigen, innerhalb der Designs kompatiblen Baukastensystems dar. Hierdurch wird nicht nur die Anpassbarkeit an den Knochendefekt verbessert, es sind auch weitere Funktionen ergänzbar und die unterschiedlichen Designs untereinander kombinierbar. Die Ergebnisse dieser Dissertationsarbeit dienen als Basis für einen völlig neuen Ansatz von Knochenersatzmaterialien mit positiven biologischen sowie biophysikalischen Eigenschaften.

scholarly journals Additive Manufacturing in the Geopolymer Construction Technology: A Review

2020 ◽  
Vol 14 (1) ◽  
pp. 150-161
Author(s):  
Salmabanu Luhar ◽  
Ismail Luhar
Keyword(s):  
3D Printing ◽  
Computer Aided Design ◽  
Selective Laser Sintering ◽  
Three Dimensional ◽  
Fused Deposition Modelling ◽  
Layer By Layer ◽  
Construction Technology ◽  
Fused Deposition ◽  
Labor Requirements ◽  
Net Shaping

This research paper presents a scientific attempt of a comprehensive systematic review of three-dimensional printing in geopolymer construction technology. The concept of 3D printing is an automated manufacturing process, layer- by- layer command, with computer-aided design model to create physical objects, acquiring swift development for the last few decades. An expansion of novel Geopolymer technology has been adopted in the construction and infrastructure industries for decades. The critical challenges of construction and infrastructure industries, such as the need for architectural, holistic, and rational designs, can be dealt with 3D printing techniques. Plentiful advantages of this emerging novel technology include a reduced amount of cost, ease of construction, a lesser amount of time, freedom of design, less wastage, aptitude to create complex structures, decrease in labor requirements, etc. Accordingly, The paper discusses common 3D techniques, such as Fused Deposition Modelling, Selective Laser Sintering, Stereolithography, 3D plotting, Laminated Object Manufacturing technique, Direct Energy deposition technique or laser engineered net shaping, Powder Bed Fusion and Inject Head 3D printing and direct deposition method. Overall, this study provides an introduction of 3D printing automation and robotics processes in a geopolymer construction industry. Ultimately, the paper emphasizes to motivate researchers towards future studies about 3D printing.

scholarly journals Effect of Infill Percentage on Properties of FDM Printed GPLA/PETGs

2019 ◽  
Vol 9 (2) ◽  
pp. 1732-1737
Keyword(s):  
Mechanical Properties ◽  
Computer Aided Design ◽  
Three Dimensional ◽  
Digital Data ◽  
Experimental Methodology ◽  
Fused Deposition Modelling ◽  
Fused Deposition ◽  
Design Structure ◽  
Aided Design

Additive Manufacturing termed by ASTM standard referred to in short as, the technology of fabricating a model based on creating a three-dimensional Computer-Aided Design structure. In the context of developing a product from digital data directly, widely involved various technologies. Amongst them, one being Fused Deposition Modelling (FDM) which supervises the principle of AM, is widely known for developing a polymer-constructed sturdiest range of materials or parts are having operative mechanical properties. Even though, the main problem exaggerates that, the quality of the output still denies due to which void parts are created from bubbles trapped leading to failure of parts under mechanical stresses. Since with 15% infill, stronger parts are estimated and their mechanical properties are studied. Since the work signifies the influence of 15% infill on mechanical properties in estimating stronger products by layered addition process. The experimental methodology is based on structural infill parameters determining goal in achieving and studying material mechanical properties.

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