Strap-On Magnets: A Framework for Rapid Prototyping of Magnets and Beam Lines

We describe a framework to assemble permanent-magnet cubes in 3D-printed frames to construct dipole, quadrupole, and solenoid magnets, whose field, in the absence of iron, can be calculated analytically in three spatial dimensions. Rotating closely spaced dipoles and quadrupoles in opposite directions allows us to adjust the integrated strength of a multipole. The contributions of unwanted harmonics were calculated and found to be moderate. We then combined multiple magnets to construct beam-line modules: a chicane, a triplet cell, and a solenoid focusing system.

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Optimization of a 3D-Printed Permanent Magnet Coupling Using Genetic Algorithm and Taguchi Method

Electronics ◽

10.3390/electronics10040494 ◽

2021 ◽

Vol 10 (4) ◽

pp. 494

Author(s):

Ekaterina Andriushchenko ◽

Ants Kallaste ◽

Anouar Belahcen ◽

Toomas Vaimann ◽

Anton Rassõlkin ◽

...

Keyword(s):

Genetic Algorithm ◽

Taguchi Method ◽

Permanent Magnet ◽

Optimization Problems ◽

Optimization Method ◽

Taguchi Optimization ◽

Torque Density ◽

Electromagnetic Devices ◽

3D Printed ◽

Manufacturing Techniques

In recent decades, the genetic algorithm (GA) has been extensively used in the design optimization of electromagnetic devices. Despite the great merits possessed by the GA, its processing procedure is highly time-consuming. On the contrary, the widely applied Taguchi optimization method is faster with comparable effectiveness in certain optimization problems. This study explores the abilities of both methods within the optimization of a permanent magnet coupling, where the optimization objectives are the minimization of coupling volume and maximization of transmitted torque. The optimal geometry of the coupling and the obtained characteristics achieved by both methods are nearly identical. The magnetic torque density is enhanced by more than 20%, while the volume is reduced by 17%. Yet, the Taguchi method is found to be more time-efficient and effective within the considered optimization problem. Thanks to the additive manufacturing techniques, the initial design and the sophisticated geometry of the Taguchi optimal designs are precisely fabricated. The performances of the coupling designs are validated using an experimental setup.

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Novel 3D-Printed MEMS Magnetometer with Optical Detection

Proceedings ◽

10.3390/proceedings2130783 ◽

2018 ◽

Vol 2 (13) ◽

pp. 783 ◽

Cited By ~ 1

Author(s):

Matthias Kahr ◽

Wilfried Hortschitz ◽

Harald Steiner ◽

Michael Stifter ◽

Andreas Kainz ◽

...

Keyword(s):

3D Printing ◽

Product Development ◽

Rapid Prototyping ◽

Low Cost ◽

High Accuracy ◽

Structural Performance ◽

Sensitivity Measurement ◽

Optical Readout ◽

3D Printed ◽

Working Principle

This paper reports a novel 3D printed MEMS magnetometer with optical readout, which demonstrates the advantages of 3D printing technology in terms of rapid prototyping. Low-cost and fast product development cycles favour 3D printing as an effective tool. Sensitivity measurement with such devices indicate high accuracy and good structural performance, considering material and technological uncertainties. This paper is focusing on the novelty of the rapid, 3D-printing prototyping approach and verification of the working principle for printed MEMS magnetometers.

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Metallic 3D Printed Rectangular Waveguides (WR3) for Rapid Prototyping of THz Packages

2018 First International Workshop on Mobile Terahertz Systems (IWMTS) ◽

10.1109/iwmts.2018.8454684 ◽

2018 ◽

Author(s):

Sumer Makhlouf ◽

Besher Khani ◽

Jorg Lackmann ◽

Sebastian Dulme ◽

Andreas Stohr

Keyword(s):

Rapid Prototyping ◽

Rectangular Waveguides ◽

3D Printed

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3D-printed materials based low-speed permanent magnet generator for energy harvesting applications

Materials Today Proceedings ◽

10.1016/j.matpr.2019.08.034 ◽

2020 ◽

Vol 22 ◽

pp. 180-184

Author(s):

C. Soemphol ◽

N. Angkawisittpan

Keyword(s):

Energy Harvesting ◽

Permanent Magnet ◽

Low Speed ◽

3D Printed ◽

Printed Materials ◽

Permanent Magnet Generator

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The Use of Composite Materials in 3D Printing

Journal of Composites Science ◽

10.3390/jcs4020042 ◽

2020 ◽

Vol 4 (2) ◽

pp. 42 ◽

Cited By ~ 5

Author(s):

Ignazio Blanco

Keyword(s):

Composite Materials ◽

3D Printing ◽

Rapid Prototyping ◽

Polymer Matrix ◽

Chemical Properties ◽

Modified Polymer ◽

Research Activities ◽

Physico Chemical ◽

3D Printed ◽

Limited Spectrum

Nowadays, all production, from the smallest ones to large companies, and research activities are affected by the use of 3D printing technology. The major limitation, in order to cover as many fields of application as possible, is represented by the set of 3D printable materials and their limited spectrum of physico-chemical properties. To expand this spectrum and employ the 3D-printed objects in areas such as biomedical, mechanical, electronical and so on, the introduction of fibers or particles in a polymer matrix has been widely studied and applied. In this review, all those studies that proposed modified polymer presenting advantages associated with rapid prototyping are reported.

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Negligible-cost microfluidic device fabrication using 3D-printed interconnecting channel scaffolds

PLoS ONE ◽

10.1371/journal.pone.0245206 ◽

2021 ◽

Vol 16 (2) ◽

pp. e0245206

Author(s):

Harry Felton ◽

Robert Hughes ◽

Andrea Diaz-Gaxiola

Keyword(s):

Rapid Prototyping ◽

Point Of Care ◽

Low Cost ◽

Microfluidic Channel ◽

Microfluidic Devices ◽

Device Fabrication ◽

Appropriate Technology ◽

Channel Cross Section ◽

Microfluidic Systems ◽

3D Printed

This paper reports a novel, negligible-cost and open-source process for the rapid prototyping of complex microfluidic devices in polydimethylsiloxane (PDMS) using 3D-printed interconnecting microchannel scaffolds. These single-extrusion scaffolds are designed with interconnecting ends and used to quickly configure complex microfluidic systems before being embedded in PDMS to produce an imprint of the microfluidic configuration. The scaffolds are printed using common Material Extrusion (MEX) 3D printers and the limits, cost & reliability of the process are evaluated. The limits of standard MEX 3D-printing with off-the-shelf printer modifications is shown to achieve a minimum channel cross-section of 100×100 μm. The paper also lays out a protocol for the rapid fabrication of low-cost microfluidic channel moulds from the thermoplastic 3D-printed scaffolds, allowing the manufacture of customisable microfluidic systems without specialist equipment. The morphology of the resulting PDMS microchannels fabricated with the method are characterised and, when applied directly to glass, without plasma surface treatment, are shown to efficiently operate within the typical working pressures of commercial microfluidic devices. The technique is further validated through the demonstration of 2 common microfluidic devices; a fluid-mixer demonstrating the effective interconnecting scaffold design, and a microsphere droplet generator. The minimal cost of manufacture means that a 5000-piece physical library of mix-and-match channel scaffolds (100 μm scale) can be printed for ~$0.50 and made available to researchers and educators who lack access to appropriate technology. This simple yet innovative approach dramatically lowers the threshold for research and education into microfluidics and will make possible the rapid prototyping of point-of-care lab-on-a-chip diagnostic technology that is truly affordable the world over.

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