scholarly journals New aspects of 3D printing by robots

2017 ◽  
Vol 3 (2(7)) ◽  
pp. 17
Author(s):  
Rafał Wypysiński
Keyword(s):  
3D Printing ◽  
Rapid Prototyping ◽  
Daily Life ◽  
Additive Technologies ◽  
Dynamic Evolution ◽  
Common Field

Additive technologies are common field of industry and daily life. Almost everyone heard about 3D printing and rapid prototyping technologies. Dynamic evolution of methods gives us new possibilities and open new chances. Let’s look on 3D robot printing, its limitation and advantages.

scholarly journals 3D MODELLING AND RAPID PROTOTYPING FOR CARDIOVASCULAR SURGICAL PLANNING – TWO CASE STUDIES

2016 ◽  
Vol XLI-B5 ◽  
pp. 887-893 ◽  
Author(s):  
E. Nocerino ◽  
F. Remondino ◽  
F. Uccheddu ◽  
M. Gallo ◽  
G. Gerosa
Keyword(s):  
3D Printing ◽  
Rapid Prototyping ◽  
Case Studies ◽  
Surgical Planning ◽  
Heart Diseases ◽  
Coronary Vessels ◽  
3D Modelling ◽  
Patient Specific ◽  
Surface Model ◽  
Medical Imagery

In the last years, cardiovascular diagnosis, surgical planning and intervention have taken advantages from 3D modelling and rapid prototyping techniques. The starting data for the whole process is represented by medical imagery, in particular, but not exclusively, computed tomography (CT) or multi-slice CT (MCT) and magnetic resonance imaging (MRI). On the medical imagery, regions of interest, i.e. heart chambers, valves, aorta, coronary vessels, etc., are segmented and converted into 3D models, which can be finally converted in physical replicas through 3D printing procedure. In this work, an overview on modern approaches for automatic and semiautomatic segmentation of medical imagery for 3D surface model generation is provided. The issue of accuracy check of surface models is also addressed, together with the critical aspects of converting digital models into physical replicas through 3D printing techniques. A patient-specific 3D modelling and printing procedure (Figure 1), for surgical planning in case of complex heart diseases was developed. The procedure was applied to two case studies, for which MCT scans of the chest are available. In the article, a detailed description on the implemented patient-specific modelling procedure is provided, along with a general discussion on the potentiality and future developments of personalized 3D modelling and printing for surgical planning and surgeons practice.

scholarly journals JAKARTA GADGET TREND CENTER

2020 ◽  
Vol 1 (2) ◽  
pp. 1671
Author(s):  
Gio Timotius ◽  
Suryono Herlambang
Keyword(s):  
3D Printing ◽  
Daily Life ◽  
Design Method ◽  
Maximum Level ◽  
Digital Cameras ◽  
Daily Life Activities ◽  
Human Needs ◽  
Space Efficiency ◽  
Game Console ◽  
Basic Human Needs

It is commonly known that in this present days technology has been heavily linked with daily life with various affects. These influences has made basic human needs also changed functionally. For example the existence of smartphone has become one of the most crucial thing on supporting daily life activities. Smartphones are only 1 of the various types of gadgets (devices) that have specific functions for users for the sake of facilitating their activities. The existence of gadgets slowly over time began to change into one of the primary needs of millennial society today. A concrete example that we can see is the ease of transportation, transactions, and interacting with the help of smartphone usage. Not only in terms of practical functions, gadget technology also has functions of entertainment & hobbies such as digital cameras, drones, game consoles, 3D printing, etc. Based on concrete statements and phenomena of human civilization now, the existence of the gadget trend center is considered important. And also based on a design method that discusses data and analysis of weaknesses and strength of site locations and approved programs, the Jakarta Gadget Trend Center is produced. This project is designed to have the maximum level of space efficiency and has a contextual response to the style and topography of the area in the form of mass, interior, and facade. AbstrakSudah diketahui secara umum bahwa di masa kini teknologi sudah melekat dengan kehidupan sehari - hari masyarakat umum dengan pengaruh yang beragam. Pengaruh tersebut membuat kebutuhan dasar manusia juga berubah secara fungsional. Contohnya keberadaan smartphone atau ponsel pintar menjadi benda paling krusial dalam mendukung kemudahan dan kelancaran beraktivitas sehari - hari. Smartphone hanya 1 dari sekian jenis gadget (gawai) yang memiliki fungsi tertentu bagi penggunanya untuk kepentingan yang memudahkan kegiatan mereka. Keberadaan gadget perlahan seiring berjalannya waktu mulai berubah menjadi salah satu kebutuhan primer masyarakat milenial kini. Contoh konkrit yang dapat kita lihat fenomenanya adalah kemudahan bertransportasi, bertransaksi, dan berinteraksi dengan penggunaan smartphone. Bukan hanya dari segi fungsi praktis, teknologi gadget juga memiliki fungsi entertainment & hobby seperti kamera digital, drone, game console, 3D printing, dsb. Berdasarkan pernyataan dan fenomena konkrit dari peradaban manusia kini, keberadaan pusat tren gawai dirasa penting. Dengan berbasis metode perancangan yang mengacu pada data dan analisis mengenai kelemahan dan kelebihan lokasi tapak maupun program yang disarankan, maka dihasilkanlah Jakarta Gadget Trend Center. Proyek ini didesain untuk memiliki tingkat efisiensi ruang semaksimal mungkin dan memiliki respons kontekstual terhadap langgam serta topografi kawasan dalam bentukan massa, interior, maupun fasad.

scholarly journals 3D printing technologies for creating models and nozzles in an aerodynamic shock tunnel experiment

2021 ◽  
Vol 2103 (1) ◽  
pp. 012033
Author(s):  
M A Kotov ◽  
N A Monakhov ◽  
S A Poniaev ◽  
P A Popov ◽  
K V Tverdokhlebov
Keyword(s):  
3D Printing ◽  
High Speed ◽  
Additive Technologies ◽  
Structure And Properties ◽  
Dynamic Experiment ◽  
Advantages And Disadvantages ◽  
Nozzle Block ◽  
Rapid Prototyping And Manufacturing ◽  
Manufacturing Techniques ◽  
Traditional Manufacturing

Abstract The features of 3D printing method for rapid prototyping and manufacturing of models for a pulsed high-speed gas-dynamic experiment are considered. Modern additive technologies allow the production of models. The basic properties of the materials and the advantages of 3D printing methods are described. The structure and properties of the obtained models can be unattainable using traditional manufacturing techniques. The design of the wind tunnel nozzle block is considered, which provides for the production of profiled contours using 3D printing. The advantages and disadvantages of use of such units on the shock tube are considered.

scholarly journals Experimental studies of the quality of embossed characters of the Braille alphabet

2016 ◽  
Vol 64 (3) ◽  
pp. 607-614
Author(s):  
R. Barczyk ◽  
D. Jasińska-Choromańska
Keyword(s):  
Surface Roughness ◽  
Statistical Analysis ◽  
3D Printing ◽  
Rapid Prototyping ◽  
Experimental Studies ◽  
Printed Text ◽  
Blind Persons ◽  
Blind Individuals

Abstract The paper presents studies pertaining to the quality of embossed characters of the Braille alphabet used, among other applications, for tagging drug labels. The following parameters of embossed inscriptions were measured: height, diameter of the dots and surface roughness (18 samples with various combinations of their values). 48 blind individuals assessed the quality of the printed text. Statistical analysis proved that a text with dots having height of 0.9 millimeter, diameter of 1.6 millimeters and roughness Ra of about 1 micrometer to be the best. The samples had been made using two different methods of rapid prototyping: PolyJet and SLS. 3D printing is increasingly popular and the studies proved the usefulness of these methods for labeling with embossed inscriptions, due to the repeatability, durability and quality they ensure. The assessing group of blind individuals was comprised of 24 persons 14–17 years old and other 24 persons aged over 60 who were not proficient in reading Braille alphabet, This allows to conclude that a text featuring the above values of the parameters will be easy to read for the majority of blind persons.

Novel antimicrobial materials designed for the 3D printing of medical devices used during the COVID-19 crisis

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Samuel Furka ◽  
Daniel Furka ◽  
Nitin Chandra Teja Chandra Teja Dadi ◽  
Patrik Palacka ◽  
Dominika Hromníková ◽  
...  
Keyword(s):  
3D Printing ◽  
Rapid Prototyping ◽  
Medical Devices ◽  
Hybrid Material ◽  
Weight Ratio ◽  
Layered Silicate ◽  
Content Type ◽  
Antimicrobial Materials ◽  
The Stability ◽  
Designed Materials

Purpose This study aims to describe the preparation of antimicrobial material usable in 3D printing of medical devices. Despite the wealth of technological progress at the time of the crisis caused by SARS-CoV-2 virus: Virus that causes current Pandemic situation (COVID-19), the global population had long been exposed beforehand to an acute absence of essential medical devices. As a response, a new type of composite materials intended for rapid prototyping, based on layered silicate saponite (Sap), antimicrobial dye phloxine B (PhB) and thermoplastics, has been recently developed. Design/methodology/approach Sap was modified with a cationic surfactant and subsequently functionalized with PhB. The hybrid material in powder form was then grounded with polyethylene terephthalate-glycol (PETG) or polylactic acid (PLA) in a precisely defined weight ratio and extruded into printing filaments. The stability and level of cytotoxicity of these materials in various physiological environments simulating the human body have been studied. The applicability of these materials in bacteria and a yeast-infected environment was evaluated. Findings Ideal content of the hybrid material, with respect to thermoplastic, was 15 weight %. Optimal printing temperature and speed, with respect to maintaining antimicrobial activity of the prepared materials, were T = 215°C at 50 mm/s for PETG/SapPhB and T = 230°C at 40 mm/s for PLA/SapPhB. 3 D-printed air filters made of these materials could keep inner air flow at 63.5% and 76.8% of the original value for the PLA/SapPhB and PETG/SapPhB, respectively, whereas the same components made without PhB had a 100% reduction of airflow. Practical implications The designed materials can be used for rapid prototyping of medical devices. Originality/value The new materials have been immediately used in the construction of an emergency lung ventilator, Q-vent, which has been used in different countries during the COVID-19 crisis.

scholarly journals Novel 3D-Printed MEMS Magnetometer with Optical Detection

Proceedings ◽  
2018 ◽  
Vol 2 (13) ◽  
pp. 783 ◽  
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.

scholarly journals Designing a delta tripod based robot fused deposition modelling 3 dimensional printer using an open-source Arduino development platform

2018 ◽  
Vol 184 ◽  
pp. 02013
Author(s):  
Tamás Templom ◽  
Timotei István Erdei ◽  
Zsolt Molnár ◽  
Edwin Shaw ◽  
Géza Husi
Keyword(s):  
3D Printing ◽  
Rapid Prototyping ◽  
Open Source ◽  
Fused Deposition Modelling ◽  
3 Dimensional ◽  
Development Platform ◽  
Fused Deposition

The pinnacle of 3D printing is its effect on the field of rapid prototyping. The major advantage comes from the fact that designers can quickly materialize a part or object, which then could be tested in practice, and can be effortlessly modified if needed. This obviously cuts the development expenses and time by a significant percent. Moreover, it’s possible to create complex and precise shapes with the technology, which would take more time and would be resource intensive if done by older methods, for example manual or automatic machining.

Bend Testing of Parts Made by Rapid Prototyping with Respect to Possible Use in Robotics

2015 ◽  
Vol 760 ◽  
pp. 141-146 ◽  
Author(s):  
Jan Lipina ◽  
Václav Krys ◽  
Jiří Marek
Keyword(s):  
3D Printing ◽  
Rapid Prototyping ◽  
Experimental Determination ◽  
Internal Structure ◽  
Detailed Knowledge ◽  
3D Printer ◽  
Bend Strength ◽  
Bend Testing ◽  
Material Parameters

Recently, the Rapid Prototyping technology (RP hereafter) has been increasingly used for a final product, which requires detailed knowledge of designing parts made by the RP technology. In order to apply parts made by the RP technology in robotics, and design in general, in a wider range, one of the most important material parameters is their bend strength. The paper describes an experimental determination of bend strength in parts printed on a 3D printer. The parts were made of polycarbonate. The tests were carried out in parts with various types of internal structure. The achieved results can be implemented when designing parts made by 3D printing provided that professional printers are used.

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