scholarly journals Helicoids 3D modeling for additive technologies

2020 ◽  
Vol 21 (2) ◽  
pp. 136-143
Author(s):  
Vladimir Jean Paul ◽  
Timur A. Elberdov ◽  
Marina I. Rynkovskaya
Keyword(s):  
3D Printing ◽  
3D Modeling ◽  
Complex Geometry ◽  
Parametric Modeling ◽  
Modeling Method ◽  
Additive Technologies ◽  
Software Systems ◽  
3D Printer ◽  
Characteristic Equations

The article provides an analysis of modern and affordable software systems for modelling shells of complex geometry and the possibilities of using these software systems in 3D printing. Such an analysis made it possible to choose software systems that most accurately allow for the implementation of the 3D modeling method proposed in the article with subsequent printing on a 3D printer. This method is considered in detail on the example of constructing several types of helicoids. The process of 3D modeling of a helicoid is described step by step and is divided into several stages: parametric modeling of a helicoid in SCAD, editing of the resulting model in AutoCAD and its export to a special format for 3D printing. The use of the method of parametric modeling is due to its accuracy and uncompromisingness. With its help, one can accurately judge the type of the built surface. Parametric modeling is the construction of a surface by compiling equations on each axis, i.e. along the x, y, z axes, and for each type of surface there are specific characteristic equations. It is not possible to implement the method of parametric modeling in all software systems; in this connection, certain difficulties arise. The article analyzes the difficulties encountered in 3D modeling of the helicoid and suggests ways to solve them.

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

APPLICATION OF ADDITIVE TECHNOLOGIES IN THE TECHNICAL SERVICE OF GARDEN EQUIPMENT

2020 ◽  
pp. 39-44
Author(s):  
ALEKSEI S. DOROKHOV ◽  
◽  
ALEKSEI S. SVIRIDOV ◽  
Keyword(s):  
Mechanical Properties ◽  
3D Printing ◽  
Physical And Mechanical Properties ◽  
Additive Technologies ◽  
3D Printer ◽  
Technical Service ◽  
Test Results ◽  
Standard Samples ◽  
Sliding Bearings ◽  
Equipment Failures

The paper considers the analysis of the market for garden equipment. The authors consider some information on garden equipment failures, using an example of Husqvarna trimmers. They also assess a possibility of using additive technologies to manufacture sliding bearings for mechanical drives of garden equipment. For testing the physical and mechanical properties, a batch of samples was prepared by means of 3D printing using FDM (FFF) technology. According to the ASTM D638-14 standard, samples were prepared on a PICASO 3D Desingner X Pro 3D printer. Samples were made of ABS-plastic and PA12 with diff erent degrees of fi lling: 20, 50 and 100%. It is noted that the destruction pattern of samples made of diff erent materials is signifi cantly diff erent. Samples made from ABS plastics are more fragile than samples made from PA12. According to the test results, PA12 with 100% fi lling have shown the best results, which makes them suitable for use in the manufacture of slide bearings by means of 3D printing.

Studi Efektivitas Praktik Modeling Dalam Produksi Asset Animasi Stop Motion Menggunakan 3D Printing

2016 ◽  
Vol 7 (2) ◽  
pp. 36-46
Author(s):  
Bharoto Yekti
Keyword(s):  
3D Printing ◽  
Key Words ◽  
3D Modeling ◽  
3D Model ◽  
3D Printer ◽  
Stop Motion ◽  
Digital Sculpting

Teknologi 3D printing sudah mulai banyak digunakan di industri animasi terutama animasi stop motion. Penggunaan 3D printer untuk animasi stop motion paling banyak digunakan pada teknik replacement animation. Perangkat lunak yang digunakan untuk membuat aset animasi stop motion tidak terbatas pada jenis perangkat lunak untuk animasi 3 Dimensi (3D) saja, Teknik 3D digital sculpting juga dapat digunakan untuk membentuk 3D model yang kemudian bisa diproses menjadi aset untuk animasi stop motion dengan 3D printer. Penelitian ini membandingkan pembuatan model 3Dimensi yang menggunakan metode polygon modeling (memakai perangkat lunak Softimage) dengan pembuatan 3D model yang menggunakan metode digital sculpting (memakai perangkat lunak Zbrush). Penelitian ini bertujuan untuk mengetahui kelemahan serta kelebihan metode poly modeling dan digital sculpting untuk membuat 3D model, dari proses modeling awal sampai ke tahap converting file perangkat lunak native menjadi file .stl yang siap diproses dengan 3D printer. Key words : 3d modeling, 3d printing, Stop motion, animationEngine.

scholarly journals DEVELOPMENT OF FONT DESIGHN FOR TACTICAL MAPS, CREATED WITH THE USE OF ADDITIVE TECHNOLOGIES

2019 ◽  
Vol 1 (2) ◽  
pp. 129-134
Author(s):  
Yulia Andryukhina
Keyword(s):  
3D Printing ◽  
Three Dimensional ◽  
Numerical Data ◽  
Additive Technologies ◽  
3D Printer ◽  
Three Dimensional Printing ◽  
Font Design ◽  
Tactile Maps ◽  
Sense Of Touch ◽  
Dimensional Printing

Modeling technologies and 3D printing are being introduced into many branches of production, supplementing or displacing traditional methods and provide new results in various fields. Research and development based on the use of three-dimensional printing did not bypass tactile cartography, which is quite expected, given the very essence of tactile perception – the sense of touch of the surface under study. The article discusses the possibility of using 3D printing for the font design of tactile maps intended for people with limited visual function. The author presents the results of a study on the perception of Braille created with a 3D printer. An algorithm developed for converting textual and numerical data from fields in the attribute tables of geographic information system bases into inscriptions of objects executed in Braille was.

scholarly journals Investigation of the physical and mechanical properties of composite materials obtained using additive technologies

2021 ◽  
pp. 9-21
Author(s):  
Vladyslav Solovei ◽  
Vitalii Oleksyshen V.
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
3D Printing ◽  
Physical And Mechanical Properties ◽  
Additive Technologies ◽  
Polymer Matrices ◽  
3D Printer ◽  
Reinforcing Fillers ◽  
Reinforcing Fibers ◽  
The Creation

The prevalence of polymers in all spheres of human life necessitates the creation of new more effective composite materials based on polymer matrices and reinforcing fillers, which by their characteristics meet the growing needs of society. In modern industry, production speeds are constantly increasing, so additive technologies are becoming a powerful alternative to traditional single and small-scale production. Among the existing types of additive technologies, the method of fused deposition modeling (FDM) deserves special attention, which provides an opportunity to organize production in conditions of limited material, time and human resources. As opposite to traditional production technologies, such as injection molding, FDM allows you to create products of more complex geometric shapes, using different combinations of polymer matrices and reinforcing fillers and thus create composite materials with the required physico-mechanical, rheological and other properties. At the same time, the main advantages of FDM also cause a number of serious disadvantages, such as anisotropy of the properties of finished products, printing defects that lead to increased yields of defective products, uneven physical and mechanical properties etc. In particular, the anisotropy of the properties of FDM-printed products results in significantly lower strength of the parts in the transverse direction to the 3D printing direction (strand overlay direction) compared to the longitudinal one, and the discontinuity of the reinforcing fibers in the strands of polymeric material leads to reduced strength. The main areas of research to modernize the process of manufacturing products on a 3D printer using the FDM method are: modernization of components and structures of 3D printers to improve the melting process and layering of materials, aimed at improving print quality and speed, as well as reducing defective yield products; improving the properties of raw materials and creating composite materials to improve the quality of finished products and their characteristics, such as electrical, chemical, mechanical, thermal, environmental, etc .; development of new biopolymers, technologies of their production and use for 3D-printing, which in the future are planned to be used in the creation of bionic parts of human bodies, etc. To overcome the main shortcomings of FDM technology, it is proposed to modernize the method of 3D printing and the extruder unit of the 3D printer, which allows to create composite materials directly (directly in the extruder), using different combinations of polymer matrices and solid reinforcing fibers.

scholarly journals Application of Additive Technologies in Improving Instrumental Equipment of Space Simulators.

2020 ◽  
pp. 28-41
Author(s):  
V.V. Batrakov ◽  
A.I. Krylov ◽  
B.N. Nefedov ◽  
V.M. Novichkov ◽  
D.V. Mukhina
Keyword(s):  
3D Printing ◽  
3D Modeling ◽  
Digital Transformation ◽  
Additive Technologies ◽  
Practical Application ◽  
Space Industry ◽  
Software And Hardware

The paper considers: additive technologies and their practical application in solving problems of operation, testing and modernization of space simu-lators in the framework of digital transformation policy of the Russian space industry; software and hardware and the experimental setups; prac-tical recommendations and suggestions for using the advantages of 3D modeling and FDM 3D printing technologies for prototyping products ap-plied in simulator construction and operation of technical means for train-ing cosmonauts.

Results of studying the dimensional accuracy of the bases of complete removable prostheses made using 3D printing and traditional technologies

2020 ◽  
pp. 34-39
Author(s):  
Vokulova Yu.A. Vokulova ◽  
E.N. Zhulev
Keyword(s):  
3D Printing ◽  
Traditional Method ◽  
Laser Scanning ◽  
Laser Scanner ◽  
Digital Technologies ◽  
Dimensional Accuracy ◽  
3D Printer ◽  
Significance Level ◽  
Average Value ◽  
The Difference

This article presents the results of studying the dimensional accuracy of the bases of complete removable prostheses made using a 3D printer and the traditional method. Bases of complete removable prostheses were made using an intraoral laser scanner iTero Cadent (USA) and a 3D printer Asiga Max UV (Australia). To study the dimensional accuracy of the bases of complete removable prostheses, we used the DentalCAD 2.2 Valletta software. The Nonparametric Wilcoxon W-test was used for statistical analysis of the obtained data. We found that the average value of the difference with the standard for bases made using digital technologies is 0.08744±0.0484 mm. The average value of the difference with the standard for bases made by the traditional method is 0.5654±0.1611 mm. Based on these data, we concluded that the bases of complete removable prostheses made using modern digital technologies (intraoral laser scanning and 3D printer) have a higher dimensional accuracy compared to the bases of complete removable prostheses made using the traditional method with a significance level of p<0.05 (Wilcoxon's W-test=0, p=0.031). Keywords: digital technologies in dentistry, digital impressions, intraoral scanner, 3D printing, ExoCAD, complete removable dentures.

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