Sample Printing Device for Additive Manufacturing of Electronic Housings

2021 ◽  
Vol 1037 ◽  
pp. 105-110
Author(s):  
Andrey Y. Sinev ◽  
Roman A. Panasenko ◽  
Vlada S. Shamkova ◽  
Gennady K. Baryshev ◽  
Aleksandr Vasilievich Berestov
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Electronic Devices ◽  
Third Party ◽  
3D Printer ◽  
Experimental Equipment ◽  
Metal Part ◽  
Additive Production ◽  
Design And Manufacture ◽  
Standard Arrangement

This work presents the results of work on a 3D printing device with a non-standard arrangement of the table and nozzle, which is necessary for the additive production of plastic cases for electronic devices. The non-standard arrangement of the table is caused by the need to use special accessories to hold third-party embedded elements of the case. A metal part - a contactor - is used as an embedded element. Due to the specific mortgage they made, as well as the experimental equipment, the authors came to the conclusion that it is economically more expedient to design and manufacture a prototype 3D printer than to modify the existing device. A sample of the FDM printing device was designed, manufactured and tested.

scholarly journals Efficient 3D printing via photooxidation of ketocoumarin based photopolymerization

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Xiaoyu Zhao ◽  
Ye Zhao ◽  
Ming-De Li ◽  
Zhong’an Li ◽  
Haiyan Peng ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Visible Light ◽  
Light Exposure ◽  
Three Dimensional ◽  
3D Printer ◽  
Light Penetration ◽  
Viable Solution

AbstractPhotopolymerization-based three-dimensional (3D) printing can enable customized manufacturing that is difficult to achieve through other traditional means. Nevertheless, it remains challenging to achieve efficient 3D printing due to the compromise between print speed and resolution. Herein, we report an efficient 3D printing approach based on the photooxidation of ketocoumarin that functions as the photosensitizer during photopolymerization, which can simultaneously deliver high print speed (5.1 cm h−1) and high print resolution (23 μm) on a common 3D printer. Mechanistically, the initiating radical and deethylated ketocoumarin are both generated upon visible light exposure, with the former giving rise to rapid photopolymerization and high print speed while the latter ensuring high print resolution by confining the light penetration. By comparison, the printed feature is hard to identify when the ketocoumarin encounters photoreduction due to the increased lateral photopolymerization. The proposed approach here provides a viable solution towards efficient additive manufacturing by controlling the photoreaction of photosensitizers during photopolymerization.

History of Additive Manufacturing

2017 ◽  
pp. 1-24 ◽  
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Large Scale ◽  
Selective Laser Sintering ◽  
3D Printer ◽  
3D Objects ◽  
History Of ◽  
Pros And Cons ◽  
3D Printed ◽  
The Common

History of additive manufacturing started in the 1980s in Japan. Stereolithography was invented first in 1983. After that tens of other techniques were invented under the common name 3D printing. When stereolithography was invented rapid prototyping did not exists. Tree years later new technique was invented: selective laser sintering (SLS). First commercial SLS was in 1990. At the end of 20t century, first bio-printer was developed. Using bio materials, first kidney was 3D printed. Ten years later, first 3D Printer in the kit was launched to the market. Today we have large scale printers that printed large 3D objects such are cars. 3D printing will be used for printing everything everywhere. List of pros and cons questions rising every day.

scholarly journals Property Analysis of Photo-Polymerization-Type 3D-Printed Structures Based on Multi-Composite Materials

2021 ◽  
Vol 11 (18) ◽  
pp. 8545
Author(s):  
So-Ree Hwang ◽  
Min-Soo Park
Keyword(s):  
Mechanical Properties ◽  
Additive Manufacturing ◽  
Composite Materials ◽  
3D Printing ◽  
Bending Test ◽  
3D Printer ◽  
Complex Structures ◽  
Photo Polymerization ◽  
Anisotropic Structures ◽  
3D Printed

Additive manufacturing, commonly called 3D printing, has been studied extensively because it can be used to fabricate complex structures; however, polymer-based 3D printing has limitations in terms of implementing certain functionalities, so it is limited in the production of conceptual prototypes. As such, polymer-based composites and multi-material 3D printing are being studied as alternatives. In this study, a DLP 3D printer capable of printing multiple composite materials was fabricated using a movable separator and structures with various properties were fabricated by selectively printing two composite materials. After the specimen was fabricated based on the ASTM, the basic mechanical properties of the structure were compared through a 3-point bending test and a ball rebound test. Through this, it was shown that structures with various mechanical properties can be fabricated using the proposed movable-separator-based DLP process. In addition, it was shown that this process can be used to fabricate anisotropic structures, whose properties vary depending on the direction of the force applied to the structure. By fabricating multi-joint grippers with varying levels of flexibility, it was shown that the proposed process can be applied in the fabrication of soft robots as well.

scholarly journals The Influence of Different Slicer Software on 3d Printing Products Accuracy and Surface Roughness

2021 ◽  
Vol 12 (2) ◽  
pp. 371-380
Author(s):  
Sally Cahyati ◽  
◽  
Haris Risqy Aziz
Keyword(s):  
Surface Roughness ◽  
Additive Manufacturing ◽  
3D Printing ◽  
3D Model ◽  
High Surface ◽  
3D Printer ◽  
Layer By Layer ◽  
Additive Manufacturing Technology ◽  
Printing Machine

Rapid Prototyping (RP) is a manufacturing process that produces a 3D model CAD to be a real product rapidly by using additive manufacturing technology. In this case, the product will print layer by layer uses a 3D printer machine. The 3D printer requires slicer software to convert CAD data into data that a 3D printer machine can read. Research is done to analyze the effect of three kinds of slicer software on 3D printing objects on the accuracy and surface roughness of the product. The 3D model CAD is sliced using three different slicer software, namely Ideamaker, Repetier Host, and Cura. The slice model result from each slicer will be printed on a 3D printer machine with the same process parameters to be compared. Then the product's dimensional and surface roughness will be measured to determine the effect of each slicer on product quality. The best quality of the product reflected the most suitable slicer software for the 3D printing machine that used. The best results achieved by Cura slicer because it has resulted in small dimensional deviations (max 0,0308±0,0079) and stabile high surface roughness of the product (max 1,585+059).

scholarly journals Analisis Pada Proses 3d Printer Terhadap Pengujian Tarik Menggunakan Filamen Pla Pro

2021 ◽  
Vol 2 (12) ◽  
pp. 2107-2117
Author(s):  
Riskullah Dirga Trisaplin ◽  
Zaldy Sirwansyah Suzen ◽  
Subkhan Subkhan
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Rapid Prototyping ◽  
3D Printer ◽  
Nozzle Temperature

Hadirnya Revolusi Industri 4.0 menyebabkan teknologi di bidang industri manufaktur berkembang sangat pesat, salah satunya mesin Rapid Prototyping dengan teknologi FDM yang merupakan mesin cetak 3 dimensi dengan prinsip pencetakan secara additive manufacturing informasi mengenai parameter proses yang dapat menghasilkan suatu produk 3D dengan kekuatan tarik secara ideal di Indonesia sangat minim, mengingat informasi tersebut sangat diperlukan dunia industri, sehingga penelitian ini bertujuan untuk mengetahui nilai kekuatan tarik serta parameter proses yang ideal dengan menggunakan filamen PLA PRO Metode yang digunakan pada penelitian ini adalah metode eksperimen faktorial, penelitian ini menggunakan mesin 3D printer Anet Et4, nozzle berukuran 0,4 mm, variasi parameter yang digunakan yaitu 3 level nozzle temperature, 15 infill pattern berdasarkan software Prusaslicer 2.3 dan orientasi sudut pencetakan vertikal 90ᵒ. Sehingga menghasilkan 45 kombinasi eksperimen. Hasil dari pengujian tarik tertinggi sebesar 44,2 yang terdapat pada eksperimen nomor 10 infill pattern 3D Honeycomb, Nozzle Temperature 210ᵒC, sudut pencetakan vertikal 90ᵒ. Sedangkan nilai kekuatan tarik terendah terdapat pada eksperimen nomor 43 dengan parameter infill Pattern Archimedean Chord, Nozzle Temperature 220ᵒC, sudut pencetakan vertikal 90ᵒ, dengan nilai kekuatan tarik sebesar 15,7 MPa. Sehingga dapat disimpulkan parameter proses tersebut mempengaruhi hasil dari pencetakan produk 3D printing.

scholarly journals Photopolymerization-based additive manufacturing of ceramics: A systematic review

2021 ◽  
Author(s):  
Sefiu Abolaji Rasaki ◽  
Dingyu Xiong ◽  
Shufeng Xiong ◽  
Fang Su ◽  
Muhammad Idrees ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Mechanical Performance ◽  
Ceramic Materials ◽  
Modern Technology ◽  
Solid Loading ◽  
Polymer Mixtures ◽  
Digital Light Processing ◽  
The Right ◽  
Design And Manufacture

AbstractConversion of inorganic-organic frameworks (ceramic precursors and ceramic-polymer mixtures) into solid mass ceramic structures based on photopolymerization process is currently receiving plentiful attention in the field of additive manufacturing (3D printing). Various techniques (e.g., stereolithography, digital light processing, and two-photon polymerization) that are compatible with this strategy have so far been widely investigated. This is due to their cost-viability, flexibility, and ability to design and manufacture complex geometric structures. Different platforms related to these techniques have been developed too, in order to meet up with modern technology demand. Most relevant to this review are the challenges faced by the researchers in using these 3D printing techniques for the fabrication of ceramic structures. These challenges often range from shape shrinkage, mass loss, poor densification, cracking, weak mechanical performance to undesirable surface roughness of the final ceramic structures. This is due to the brittle nature of ceramic materials. Based on the summary and discussion on the current progress of material-technique correlation available, here we show the significance of material composition and printing processes in addressing these challenges. The use of appropriate solid loading, solvent, and preceramic polymers in forming slurries is suggested as steps in the right direction. Techniques are indicated as another factor playing vital roles and their selection and development are suggested as plausible ways to remove these barriers.

scholarly journals Design and Development of Plastic Filament Extruder for 3D Printing

2018 ◽  
Vol 10 (3) ◽  
pp. 23 ◽  
Author(s):  
Mamta H. Wankhade ◽  
Satish G. Bahaley
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Three Dimensional ◽  
3D Printer ◽  
3D Objects ◽  
Fused Deposition ◽  
Additive Manufacturing Technology ◽  
Mechanized Method ◽  
Dimensional Object ◽  
The Cost

<p>3D printing is a form of additive manufacturing technology where a three dimensional object is created by laying down successive layers of material. It is mechanized method whereby 3D objects are quickly made on a reasonably sized machine connected to a computer containing blueprints for the object. As 3D printing is growing fast and giving a boost to product development, the factories doing 3D printing need to continuously meet the printing requirements and maintain an adequate amount of inventory of the filament. As the manufactures have to buy these filaments from various vendors, the cost of 3D printing increases. To overcome the problem faced by the manufacturers, small workshop owners, the need of 3D filament making machine arises. This project focuses on designing and fabricating a portable fused deposition 3D printer filament making machine with cheap and easily available components to draw 1.75 mm diameter ABS filament.</p>

scholarly journals Amalgamation of 3D Printing with Fabrication Robotics

2021 ◽  
Vol 9 (9) ◽  
pp. 2161-2164
Author(s):  
Patel Mann B.
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Paradigm Shift ◽  
Raw Materials ◽  
Multiple Roles ◽  
3D Printer ◽  
Normal Product ◽  
Building Process ◽  
Subtractive Manufacturing ◽  
Pass Through

Abstract: 3D printing has always been a matter of curiosity to layman. But for engineers and innovators, 3D printer is viewed as a machine of additive manufacturing domain. It is definitely revolutionary in that area but if we remove such a myopic vision, we can say that a 3D printer is devise giving relative motions in 3 directions. Taking the advantage of this, we can assign multiple roles to 3D printer. In normal product building process, raw materials are converted and processed with subtractive manufacturing processes. Than they are treated with number of fabrication processes for final end product. On this journey, they pass through different layouts and machines. But if we develop a single unit machine where raw product is processed and also fabricated on single bed resulting in end product, than we can bring a paradigm shift in manufacturing technology in prevailing world. Keyword: 1. Additive manufacturing, 2. 3D printing, 3. Digital manufacturing, 4. Rapid prototyping, 5. Industrial engineering.

Recent Designs on Resin Containers of Photocuring 3D Printer

2020 ◽  
Vol 13 ◽  
Author(s):  
Baocheng Xie ◽  
Xuhui Ji
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Temperature Control ◽  
Complex Object ◽  
3D Printer ◽  
Curing Process ◽  
Core Component ◽  
Additive Manufacturing Technology ◽  
Similarities And Differences ◽  
Selection Of

Background: Photocuring 3D printing is a highly efficient additive manufacturing technology for machining complex object geometries. Resin container, a core component of photocuring 3D printer, plays a significant role in solving the problems about resin supply, temperature control, peeling method and membrane pressure during the curing process. Thus, the resin container has been paid more and more attention to optimize the curing process Objective: To offer some new designs of resin container which contribute to solve problems about resin supply, temperature control, peeling method and membrane pressure. Provide the reader with a new idea that the function of resin containers cannot be ignored during 3d printing. Moreover, stimulate the reader's thoughts about how can designs of resin containers be further improved Methods: This paper sketches out the strengths and weaknesses of these designs of resin containers with a more critical eye. And show their similarities and differences in a more concise form. Results: The strengths and weaknesses of these designs of resin containers in photocuring 3D printing are summarized. There is no doubt that a suitable resin container contributes to solve the problems about resin supply, temperature control, peeling method and membrane pressure. It helps to stimulate the reader's thoughts on the selection of resin containers for printing optimization Conclusion: Researchers should pay more attention to the new designs of resin containers which are easy to be ignored but have great significance. Some new resin containers will be invented to solve problems about resin supply, temperature control, peeling method and membrane pressure during the curing process

scholarly journals The Effect of Deviation Due to the Manufacturing Accuracy in the Parameters of an MPP on Its Acoustic Properties: Trial Production of MPPs of Different Hole Shapes Using 3D Printing

Acoustics ◽  
2020 ◽  
Vol 2 (3) ◽  
pp. 605-616
Author(s):  
Kimihiro Sakagami ◽  
Midori Kusaka ◽  
Takeshi Okuzono ◽  
Shinsuke Nakanishi
Keyword(s):  
Additive Manufacturing ◽  
Pilot Study ◽  
3D Printing ◽  
Low Cost ◽  
Normal Incidence ◽  
Acoustic Properties ◽  
3D Printer ◽  
Recent Developments ◽  
Manufacturing Accuracy ◽  
Basic Studies

In this study, we discuss the effect of the manufacturing accuracy of a microperforated panel (MPP) produced by 3D printers on acoustic properties through measured and calculated results as a pilot study. The manufacturing costs of MPPs have long been one of their shortcomings; however, with recent developments in the manufacturing process, low-cost MPPs are now available. In a further attempt at reducing the cost, 3D printing techniques have recently been considered. Cases of trial production of MPPs manufactured by 3D printing have been reported. When introducing such new techniques, despite the conventional microdrill procedure, manufacturing accuracy can often become an issue. However, there are few studies reporting the effect of manufacturing accuracy on the acoustic properties in the case of 3D-printed MPPs. Considering this situation, in this pilot study, we attempted to produce MPPs with circular and rectangular perforations using a consumer 3D printer of the additive manufacturing type. The hole sizes of the specimens were measured, and the accuracy was evaluated. The normal incidence absorption coefficient and specific impedance were measured using an impedance tube. The measured results were compared with the theoretical values using Guo’s model. Through these basic studies, the MPPs produced by an additive manufacturing 3D printer demonstrated good sound absorption performance; however, due to the large deviations of parameters, the agreement with the theoretical values was not good, which suggests that it is difficult to predict the acoustic properties of MPPs made by a consumer-grade additive manufacturing 3D printer.

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