Scalable 3D printing method for the manufacture of single-material fluidic devices with integrated filter for point of collection colourimetric analysis

2020 ◽  
Author(s):  
Sepideh Keshan Balavandy ◽  
Feng Li ◽  
Niall P. Macdonald ◽  
Fernando Maya ◽  
Ashley T. Townsend ◽  
...  
Keyword(s):  
3D Printing ◽  
Fluidic Devices ◽  
Single Material ◽  
Printing Method

scholarly journals Increasing the functionalities of 3D printed microchemical devices by single material, multimaterial, and print-pause-print 3D printing

Lab on a Chip ◽  
2019 ◽  
Vol 19 (1) ◽  
pp. 35-49 ◽  
Author(s):  
Feng Li ◽  
Niall P. Macdonald ◽  
Rosanne M. Guijt ◽  
Michael C. Breadmore
Keyword(s):  
3D Printing ◽  
Rapid Prototyping ◽  
Soft Lithography ◽  
Fluidic Devices ◽  
3D Printed ◽  
Single Material

3D printing has emerged as a valuable approach for the fabrication of fluidic devices and may replace soft-lithography as the method of choice for rapid prototyping.

The design of pores in PCL/HA-associated PLA scaffold with 3D printing method

2020 ◽  
Author(s):  
Dyah Hikmawati ◽  
Tiandini Dwi Sundari ◽  
Aminatun ◽  
Inten Firdhausi Wardhani
Keyword(s):  
3D Printing ◽  
Printing Method

scholarly journals Correction to: 3D printing method for next‑day acetabular fracture surgery using a surface filtering pipeline: feasibility and 1‑year clinical results

2021 ◽  
Author(s):  
Simon Weidert ◽  
Sebastian Andress ◽  
Christoph Linhart ◽  
Eduardo M. Suero ◽  
Axel Greiner ◽  
...  
Keyword(s):  
3D Printing ◽  
Acetabular Fracture ◽  
Clinical Results ◽  
Fracture Surgery ◽  
Printing Method

A correction to this paper has been published: https://doi.org/10.1007/s11548-021-02348-7

3D printing method of multi piezo head using a photopolymer resin

2007 ◽  
Author(s):  
Jung-Su Kim ◽  
Dong-Soo Kim ◽  
Min-Cheol Lee
Keyword(s):  
3D Printing ◽  
Printing Method

Study of 3D printing method for GRIN micro-optics devices

2016 ◽  
Author(s):  
P. J. Wang ◽  
J. A. Yeh ◽  
W. Y. Hsu ◽  
Y. C. Cheng ◽  
W. Lee ◽  
...  
Keyword(s):  
3D Printing ◽  
Micro Optics ◽  
Printing Method

scholarly journals Using a Cable-Driven Parallel Robot with Applications in 3D Concrete Printing

2021 ◽  
Vol 11 (2) ◽  
pp. 563
Author(s):  
Tuong Phuoc Tho ◽  
Nguyen Truong Thinh
Keyword(s):  
3D Printing ◽  
Large Scale ◽  
Trust Region ◽  
Parallel Robot ◽  
Inverse Kinematic ◽  
Programming Algorithm ◽  
Construction Time ◽  
Inverse Kinematic Problem ◽  
Robot Configuration ◽  
Printing Method

In construction, a large-scale 3D printing method for construction is used to build houses quickly, based on Computerized Aid Design. Currently, the construction industry is beginning to apply quite a lot of 3D printing technologies to create buildings that require a quick construction time and complex structures that classical methods cannot implement. In this paper, a Cable-Driven Parallel Robot (CDPR) is described for the 3D printing of concrete for building a house. The CDPR structures are designed to be suitable for 3D printing in a large workspace. A linear programming algorithm was used to quickly calculate the inverse kinematic problem with the force equilibrium condition for the moving platform; this method is suitable for the flexible configuration of a CDPR corresponding to the various spaces. Cable sagging was also analyzed by the Trust-Region-Dogleg algorithm to increase the accuracy of the inverse kinematic problem for controlling the robot to perform basic trajectory interpolation movements. The paper also covers the design and analysis of a concrete extruder for the 3D printing method. The analytical results are experimented with based on a prototype of the CDPR to evaluate the work ability and suitability of this design. The results show that this design is suitable for 3D printing in construction, with high precision and a stable trajectory printing. The robot configuration can be easily adjusted and calculated to suit the construction space, while maintaining rigidity as well as an adequate operating space. The actuators are compact, easy to disassemble and move, and capable of accommodating a wide variety of dimensions.

3 D printing technology and experimental study of chitosan gel using atomized solidification liquid-assisted extrusion molding

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Yangwei Wang ◽  
Peilun Lv ◽  
Jian Li ◽  
Liying Yu ◽  
Guodong Yuan ◽  
...  
Keyword(s):  
3D Printing ◽  
Three Dimensional ◽  
Theoretical Research ◽  
Error Sources ◽  
Printing Technology ◽  
Content Type ◽  
Printing Ink ◽  
Printing Parameters ◽  
Chitosan Gel ◽  
Printing Method

Purpose This paper aims to propose a suitable atomizing solidification chitosan (CS) gel liquid extrusion molding technology for the three dimensional (3D) printing method, and experiments verify the feasibility of this method. Design/methodology/approach This paper mainly uses experimental means, combined with theoretical research. The preparation method, solidification forming method and 3D printing method of CS gel solution were studied. The CS gel printing mechanism and printing error sources are analyzed on the basis of the CS gel ink printing results, printing performance with different ratios of components by constructing a gel print prototype, experiments evaluating the CS gel printing technology and the effects of the process parameters on the scaffold formation. Findings CS printing ink was prepared; the optimal formula was found; the 3 D printing experiment of CS was completed; the optimal printing parameters were obtained; and the reliability of the forming prototype, printing ink and gel printing process was verified, which allowed for the possibility to apply the 3 D printing technology to the manufacturing of a CS gel structure. Originality/value This study can provide theoretical and technical support for the potential application of CS 3 D printed gels in tissue engineering.

Elastic properties of ABS-plastic acoustic metamaterial produced by 3D-printing method

2021 ◽  
Author(s):  
Alexey I. Kokshayskiy ◽  
Alexander B. Volodarskii ◽  
Natalia V. Shirgina ◽  
Natalia I. Odina ◽  
Alexander I. Korobov
Keyword(s):  
3D Printing ◽  
Elastic Properties ◽  
Acoustic Metamaterial ◽  
Printing Method

scholarly journals Dual Sacrificial Molding: Fabricating 3D Microchannels with Overhang and Helical Features

Micromachines ◽  
2018 ◽  
Vol 9 (10) ◽  
pp. 523 ◽  
Author(s):  
Wei Goh ◽  
Michinao Hashimoto
Keyword(s):  
3D Printing ◽  
Fused Deposition Modeling ◽  
Microfluidic Devices ◽  
High Impact ◽  
3D Printer ◽  
Original Design ◽  
Fused Deposition ◽  
Deposition Modeling ◽  
Indispensable Tool ◽  
Single Material

Fused deposition modeling (FDM) has become an indispensable tool for 3D printing of molds used for sacrificial molding to fabricate microfluidic devices. The freedom of design of a mold is, however, restricted to the capabilities of the 3D printer and associated materials. Although FDM has been used to create a sacrificial mold made with polyvinyl alcohol (PVA) to produce 3D microchannels, microchannels with free-hanging geometries are still difficult to achieve. Herein, dual sacrificial molding was devised to fabricate microchannels with overhang or helical features in PDMS using two complementary materials. The method uses an FDM 3D printer equipped with two extruders and filaments made of high- impact polystyrene (HIPS) and PVA. HIPS was initially removed in limonene to reveal the PVA mold harboring the design of microchannels. The PVA mold was embedded in PDMS and subsequently removed in water to create microchannels with 3D geometries such as dual helices and multilayer pyramidal networks. The complementary pairing of the HIPS and PVA filaments during printing facilitated the support of suspended features of the PVA mold. The PVA mold was robust and retained the original design after the exposure to limonene. The resilience of the technique demonstrated here allows us to create microchannels with geometries not attainable with sacrificial molding with a mold printed with a single material.

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