scholarly journals Implementing a 3D printing service in a biomedical library

2017 ◽  
Vol 105 (1) ◽  
Author(s):  
Verma Walker, MLIS
Keyword(s):  
Problem Solving ◽  
3D Printing ◽  
3D Modeling ◽  
Three Dimensional ◽  
National Institutes Of Health ◽  
3D Printer ◽  
Service Model ◽  
Steep Learning Curve ◽  
3D Printers ◽  
Creative Problem

Three-dimensional (3D) printing is opening new opportunities in biomedicine by enabling creative problem solving, faster prototyping of ideas, advances in tissue engineering, and customized patient solutions. The National Institutes of Health (NIH) Library purchased a Makerbot Replicator 2 3D printer to give scientists a chance to try out this technology. To launch the service, the library offered training, conducted a survey on service model preferences, and tracked usage and class attendance. 3D printing was very popular, with new lab equipment prototypes being the most common model type. Most survey respondents indicated they would use the service again and be willing to pay for models. There was high interest in training for 3D modeling, which has a steep learning curve. 3D printers also require significant care and repairs. NIH scientists are using 3D printing to improve their research, and it is opening new avenues for problem solving in labs. Several scientists found the 3D printer so helpful they bought one for their labs. Having a printer in a central and open location like a library can help scientists, doctors, and students learn how to use this technology in their work.

scholarly journals GAYA PENDIDIKAN 3D MODELLING (CAD/CAID) KE 3D PRINTING SEBAGAI LANGKAH DASAR DESAIN SESUAI REVOLUSI INDUSTRI KE EMPAT

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Geggy Gamal Surya
Keyword(s):  
3D Printing ◽  
3D Modeling ◽  
Design Education ◽  
Industrial Revolution ◽  
Industrial Design ◽  
Three Dimensional ◽  
3D Modelling ◽  
3D Printer ◽  
3D Design ◽  
Fourth Industrial Revolution

Abstrak Pendidikan desain industri memerlukan tahapan-tahapan sesuai pada zamannya. Pembelajaran yang dibutuhkan harus sesuai tuntutan zaman yakni kemajuan teknologi yang berfungsi memudahkan dalam aspek penggunaan dan pembuatan dalam bidang desain industri. Desain industri memiliki tahapan dasar, yaitu ide, konsep, gambar sketsa, proyeksi tiga dimensi, pemodelan skala dan mockup atau prototipe. Dalam tiap tahapan tersebut, perkembangan yang mempunyai pengaruh besar adalah tahapan proyeksi tiga dimensi. Proyeksi tiga dimensi tidak hanya sekedar membuat model dan menciptakan hasil render, tapi sudah pada kepada hasil nyatanya yaitu masuk ke ranah 3D mockup/3D prototipe melalui 3D Printer yang disebut sebagai 3D Printing. Pentingnya pendidikan seperti Universitas, Sekolah Tinggi, Akademi maupun tempat-tempat kursus yang memiliki mata pembelajaran ini, wajib menyertakan pendidikan 3D Printing ke dalam mata pembelajaran/mata kuliah 3D Modelling (CAD/CAID). Memasuki era Revolusi Industri Keempat tentu memerlukan beberapa update pada masing-masing mata pembelajaran pada pendidikan desain industri, hal ini karena berkaitan dengan unsur teknologi dalam dunia desain industri yaitu mesin Printer 3D. Saat ini, sangat dibutuhkan lapangan pekerjaan yang membutuhkan operator mesin 3D Printer yang muncul dari lulusan-lulusan desain produk/desain industri. Operator yang dimaksud adalah lulusan yang menguasai software 3D Modelling. Lulusan tersebut harus dibubuhi ilmu dalam pengoperasian mesin 3D Printer yang berkaitan erat dengan CAD/CAID dalam diploma maupun Strata Satu. Sehingga dapat menciptakan lulusan yang berkompeten dan menjadi pekerja yang sangat dibutuhkan di perusahaan yang mengaplikasikan teknologi-teknologi Revolusi Industri Keempat. Kata kunci : 3D Modelling, 3D Printing, Desain Industri, Desain 3D   Abstract Industrial design education requires stages according the timeline of the era. The learning needed must be in accordance with the demands of the era, ie technological advancements that function to facilitate aspects of the use and manufacture in the field of industrial design. Industrial design has basic stages, ie ideas, concepts, sketch drawings, three dimensional projections, scale modeling and mockups or prototypes. In each of these stages, developments that have a large influence are the stages of three dimensional projection. The 3-dimensional projection is not just making a model and creating a rendering result, but it has turned to the real results of entering the 3D mockup / 3D prototype through 3D Printer which is called 3D Printing. The importance of education such as Universities, Colleges, Academies and course places that have this subject of study, must include 3D Printing education into the subject of learning / 3D Modeling (CAD / CAID) courses. Entering the fourth industrial revolution era certainly requires some updates on each subject of learning in industrial design education, this is because it is related to technological elements in the world of industrial design ie 3D Printing machine. At present, jobs are urgently needed that require 3D Printer machine operators to emerge from graduates of product design / industrial design. Approved operators are those who understand 3D Modeling software. These graduates must be knowledgeable in the operation of 3D Printer machines that are closely related to CAD / CAID in diploma or bachelor degree. So that it can create competent graduates who are needed workers in companies that apply fourth industrial revolution technologies. Keywords : 3D Modelling, 3D Printing, Industrial Design, 3D Design Keywords : 3D Modelling, 3D Printing, Industrial Design, 3D Design

scholarly journals 3D Printing: What Are the Hazards?

2018 ◽  
Vol 66 (3) ◽  
pp. 164-164 ◽  
Author(s):  
Susan A. Randolph
Keyword(s):  
3D Printing ◽  
Occupational Health ◽  
Health Professionals ◽  
Three Dimensional ◽  
3D Printer ◽  
3D Printers

As the popularity of three-dimensional (3D) printers increases, more research will be conducted to evaluate the benefits and risks of this technology. Occupational health professionals should stay abreast of new recommendations to protect workers from exposure to 3D printer emissions.

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.

scholarly journals Supercritical Impregnation of PLA Filaments with Mango Leaf Extract to Manufacture Functionalized Biomedical Devices by 3D Printing

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2125
Author(s):  
José María Rosales ◽  
Cristina Cejudo ◽  
Lidia Verano ◽  
Lourdes Casas ◽  
Casimiro Mantell ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
3D Printing ◽  
Polylactic Acid ◽  
Leaf Extract ◽  
Three Dimensional ◽  
3D Printer ◽  
Pharmacological Properties ◽  
Bioactive Properties ◽  
Supercritical Impregnation ◽  
Mango Leaves

Polylactic Acid (PLA) filaments impregnated with ethanolic mango leaves extract (MLE) with pharmacological properties were obtained by supercritical impregnation. The effects of pressure, temperature and amount of extract on the response variables, i.e., swelling, extract loading and bioactivity of the PLA filaments, were determined. The analysis of the filaments biocapacities revealed that impregnated PLA filaments showed 11.07% antidenaturant capacity and 88.13% antioxidant activity, which after a 9-day incubation shifted to 30.10% and 9.90%, respectively. Subsequently, the same tests were conducted on printed samples. Before their incubation, the printed samples showed 79.09% antioxidant activity and no antidenaturant capacity was detected. However, after their incubation, the antioxidant activity went down to only 2.50%, while the antidenaturant capacity raised up to 23.50%. The persistence of the bioactive properties after printing opens the possibility of using the functionalized PLA filaments as the feed for a three-dimensional (3D) printer.

scholarly journals Foundation Piles—A New Feature for Concrete 3D Printers

Materials ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2545
Author(s):  
Marcin Hoffmann ◽  
Krzysztof Żarkiewicz ◽  
Adam Zieliński ◽  
Szymon Skibicki ◽  
Łukasz Marchewka
Keyword(s):  
3D Printing ◽  
Rapid Development ◽  
Construction Materials ◽  
Shallow Foundation ◽  
Soil Reinforcement ◽  
3D Printer ◽  
Permanent Formwork ◽  
3D Printers ◽  
New Feature ◽  
The Cost

Foundation piles that are made by concrete 3D printers constitute a new alternative way of founding buildings constructed using incremental technology. We are currently observing very rapid development of incremental technology for the construction industry. The systems that are used for 3D printing with the application of construction materials make it possible to form permanent formwork for strip foundations, construct load-bearing walls and partition walls, and prefabricate elements, such as stairs, lintels, and ceilings. 3D printing systems do not offer soil reinforcement by making piles. The paper presents the possibility of making concrete foundation piles in laboratory conditions using a concrete 3D printer. The paper shows the tools and procedure for pile pumping. An experiment for measuring pile bearing capacity is described and an example of a pile deployment model under a foundation is described. The results of the tests and analytical calculations have shown that the displacement piles demonstrate less settlement when compared to the analysed shallow foundation. The authors indicate that it is possible to replace the shallow foundation with a series of piles combined with a printed wall without locally widening it. This type of foundation can be used for the foundation of low-rise buildings, such as detached houses. Estimated calculations have shown that the possibility of making foundation piles by a 3D printer will reduce the cost of making foundations by shortening the time of execution of works and reducing the consumption of construction materials.

scholarly journals Mesh-Type Three-Dimensional (3D) Printing of Human Organs and Tumors: Fast, Cost-Effective, and Personalized Anatomic Modeling of Patient-Oriented Visual Aids

2021 ◽  
Vol 11 (3) ◽  
pp. 1047
Author(s):  
Jungirl Seok ◽  
Sungmin Yoon ◽  
Chang Hwan Ryu ◽  
Junsun Ryu ◽  
Seok-ki Kim ◽  
...  
Keyword(s):  
3D Printing ◽  
3D Modeling ◽  
Fused Deposition Modeling ◽  
Three Dimensional ◽  
Tumor Location ◽  
Visual Aids ◽  
Surgical Specimen ◽  
Personalized Care ◽  
Fused Deposition ◽  
Mesh Work

Although three-dimensional (3D)-printed anatomic models are not new to medicine, the high costs and lengthy production times entailed have limited their application. Our goal was developing a new and less costly 3D modeling method to depict organ-tumor relations at faster printing speeds. We have devised a method of 3D modeling using tomographic images. Coordinates are extracted at a specified interval, connecting them to create mesh-work replicas. Adjacent constructs are depicted by density variations, showing anatomic targets (i.e., tumors) in contrasting colors. An array of organ solid-tumor models was printed via a Fused Deposition Modeling 3D printer at significantly less cost ($0.05/cm3) and time expenditure (1.73 min/cm3; both, p < 0.001). Printed models helped promote visual appreciation of organ-tumor anatomy and adjacent tissues. Our mesh-work 3D thyroidal prototype reproduced glandular size/contour and tumor location, readily approximating the surgical specimen. This newly devised mesh-type 3D printing method may facilitate anatomic modeling for personalized care and improve patient awareness during informed surgical consent.

Research on the printing error of tilted vertical beams in delta-robot 3D printers

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Yuezong Wang ◽  
Jinghui Liu ◽  
Mengfei Guo ◽  
LiuQIan Wang
Keyword(s):  
3D Printing ◽  
Kinematic Model ◽  
Three Dimensional ◽  
3D Printer ◽  
Simulation Approach ◽  
Content Type ◽  
Printing Quality ◽  
Delta Robot ◽  
Error Generation ◽  
Error Simulation

Purpose A three-dimensional (3D) printing error simulation approach is proposed to analyze the influence of tilted vertical beams on the 3D printing accuracy. The purpose of this study is to analyze the influence of such errors on printing accuracy and printing quality for delta-robot 3D printer. Design/methodology/approach First, the kinematic model of a delta-robot 3D printer with an ideal geometric structure is proposed by using vector analysis. Then, the normal kinematic model of a nonideal delta-robot 3D robot with tilted vertical beams is derived based on the above ideal kinematic model. Finally, a 3D printing error simulation approach is proposed to analyze the influence of tilted vertical beams on the 3D printing accuracy. Findings The results show that tilted vertical beams can indeed cause 3D printing errors and further influence the 3D printing quality of the final products and that the 3D printing errors of tilted vertical beams are related to the rotation angles of the tilted vertical beams. The larger the rotation angles of the tilted vertical beams are, the greater the geometric deformations of the printed structures. Originality/value Three vertical beams and six horizontal beams constitute the supporting parts of the frame of a delta-robot 3D printer. In this paper, the orientations of tilted vertical beams are shown to have a significant influence on 3D printing accuracy. However, the effect of tilted vertical beams on 3D printing accuracy is difficult to capture by instruments. To reveal the 3D printing error mechanisms under the condition of tilted vertical beams, the error generation mechanism and the quantitative influence of tilted vertical beams on 3D printing accuracy are studied by simulating the parallel motion mechanism of a delta-robot 3D printer with tilted vertical beams.

scholarly journals Design and implementation of a three dimensions (3D) printer for modeling and pre-manufacturing applications

2019 ◽  
Vol 9 (6) ◽  
pp. 4749
Author(s):  
Ghazi Qaryouti ◽  
Abdel Rahman Salbad ◽  
Sohaib A. Tamimi ◽  
Anwar Almofleh ◽  
Wael A. Salah ◽  
...  
Keyword(s):  
3D Printing ◽  
Manufacturing Sector ◽  
Low Cost ◽  
Three Dimensional ◽  
Three Dimensions ◽  
3D Printer ◽  
Overall Design ◽  
Design And Implementation ◽  
Manufacturing Applications ◽  
Functional Components

The three-dimensional (3D) printing technologies represent a revolution in the manufacturing sector due to their unique characteristics. These printers arecapable to increase the productivitywithlower complexity in addition tothe reduction inmaterial waste as well the overall design cost prior large scalemanufacturing.However, the applications of 3D printing technologies for the manufacture of functional components or devices remain an almost unexplored field due to their high complexity. In this paper the development of 3D printing technologies for the manufacture of functional parts and devices for different applications is presented. The use of 3D printing technologies in these applicationsis widelyused in modelingdevices usually involves expensive materials such as ceramics or compounds. The recent advances in the implementation of 3D printing with the use of environmental friendly materialsin addition to the advantages ofhighperformance and flexibility. The design and implementation of relatively low-cost and efficient 3D printer is presented. The developed prototype was successfully operated with satisfactory operated as shown from the printed samples shown.

Employing 3D Printing to Fabricate Augmented Reality Headsets for Middle School STEM Education

2019 ◽  
pp. 241-261
Author(s):  
Daniel A. Tillman ◽  
Ross C. Teller ◽  
Paul E. Perez ◽  
Song A. An
Keyword(s):  
Middle School ◽  
Middle School Students ◽  
Augmented Reality ◽  
3D Printing ◽  
Learning Science ◽  
3D Printer ◽  
School Students ◽  
Mathematics Content Knowledge ◽  
3D Printers ◽  
And Mathematics

This chapter examines the theories, strategies, and techniques for employing 3D printing technologies to fabricate education-appropriate augmented reality (AR) headsets and provides a concrete example of an AR headset that the authors developed. The chapter begins by discussing theories and historically relevant events that provide a context for the chapter's narrative about use of 3D printers to support AR in education. Next, the chapter presents the strategies that were employed while developing and 3D fabricating a custom-designed AR headset that was intended for supporting middle school students learning science and mathematics content knowledge. Afterward, the chapter provides directions and resources for the reader describing how to build the presented AR headset design themselves by using a 3D printer and affordable electronic components, as well as information about how to join the Maker community and participate in the designing and producing of similar projects. Lastly, the chapter delivers a summarization of all findings discussed.

scholarly journals Flexible 3D Printed Molds for Educational Use. Digital Fabrication of 3D Typography

2019 ◽  
Vol 15 (13) ◽  
pp. 4 ◽  
Author(s):  
Alejandro Bonnet De León ◽  
Jose Luis Saorin ◽  
Jorge De la Torre-Cantero ◽  
Cecile Meier ◽  
María Cabrera-Pardo
Keyword(s):  
3D Modeling ◽  
Low Cost ◽  
Digital Fabrication ◽  
3D Printer ◽  
School Environments ◽  
Flexible Material ◽  
Educational Environments ◽  
3D Printers ◽  
3D Printed ◽  
The Subject

<p class="0abstract"><span lang="EN-US">One of the drawbacks of using 3D printers in educational environments is that the creation time of each piece is high and therefore it is difficult to manufacture at least one piece for each student. This aspect is important so that each student can feel part of the manufacturing process. To achieve this, 3D printers can be used, not to make pieces, but to make the molds that students use to create replicas. On the other hand, for a mold to be used to make several pieces, it is convenient to make it with flexible material. However, most used material for 3D printers (PLA) is very rigid. To solve this problem, this article designs a methodology that allows the use of low-cost 3D printers (most common in school environments) with flexible material so that each mold can be used to manufacture parts for several students. To print flexible material with low-cost printers, it is necessary to adapt the machine and the print parameters to work properly. This article analyzes the changes to be made with a low cost 3D printer and validates the use of molds in school environments. A pilot test has been carried out with 8 students of the subject of Typography, in the School of Art and Superior of Design of Tenerife. During the activity, the students carried out the process of designing a typography and creating digital molds for 3D printing with flexible material. The designs were made using free 3D modeling programs and low-cost technologies.</span></p>

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