scholarly journals SERVICE FUNCTIONS AUTOMATION IN FDM 3D PRINTER

2021 ◽  
pp. 78-82
Author(s):  
S. S. Shemelyunas ◽  
A. V. Drobotov ◽  
D. V. Samoylov
Keyword(s):  
Additive Manufacturing ◽  
Control Systems ◽  
3D Printer ◽  
Material Supply ◽  
3D Printers ◽  
Software And Hardware ◽  
Automatic Removal

The article discusses systems for automatic removal and retrieval of printed products, as well as control systems for material supply in FDM 3D printers. The process of the module software for ensuring the functioning of these systems in a software and hardware integrated 3D printer is described. The capabilities of the developed module and the ways of its application in modern additive manufacturing are described.

Using 3D Printers to Engage Students in Research

2019 ◽  
pp. 50-69
Author(s):  
Jim Flowers
Keyword(s):  
Additive Manufacturing ◽  
Research And Development ◽  
Educational Experiences ◽  
Physical And Mechanical Properties ◽  
Testing Equipment ◽  
3D Printer ◽  
3D Printers ◽  
3D Printed ◽  
Manufacturing Technologies ◽  
Student Inquiry

Is the primary purpose of a 3D printer to manufacture a product? Yes, but students and teachers can also use 3D printers to learn about and engage in research and experimentation. This could begin with product research and development, then expand to technical areas based on additive manufacturing technologies, the physical and mechanical properties of additive manufacturing materials, and the properties of 3D printed products. Student inquiry can take the form of formal or informal experimentation and observational studies. Although dedicated testing equipment can facilitate more demanding investigations, it is possible for quite a bit of experimentation to be done with little or no dedicated testing equipment. It is hoped that the reader will identify different educational experiences with experimentation that might fit their learners' needs and see 3D printers as tools for conducting and teaching about research, including product research and development and research into process engineering and materials.

Choosing a 3D Printer with Parallel Kinematics for Independent Student Work

2017 ◽  
pp. 57-69
Author(s):  
V. B. Samoylov
Keyword(s):  
Educational Process ◽  
3D Printer ◽  
Technological Properties ◽  
Parallel Kinematics ◽  
Design Decisions ◽  
Student Work ◽  
3D Printers ◽  
Technical Specifications ◽  
Software And Hardware ◽  
Independent Work

Currently, there are a lot of offers of 3D printers on the market, which are used for educational purposes, but in the independent work of students (CDS) it is important not only the availability of bulk printing technologies, but also the visibility of these processes and the ability to directly influence them when working independently .The main criteria for choosing such devices are cost, openness of software and hardware, the possibility of modernization and repair, ease of maintenance and the minimum price of consumables, provided there is a sufficient level of reliable and accurate operation. The article analyzes seventeen models of 3D printers with parallel kinematics that meet the specified requirements, taking into account the technical specifications declared by the manufacturers. The design decisions of both individual units and devices as a whole are considered, the estimation of technological properties for use in the educational process is given, the methodology and actual recommendations for selecting a 3D printer are proposed.

A Virtual Reality Application for Additive Manufacturing Process Training

2015 ◽  
Author(s):  
Alex Renner ◽  
Joseph Holub ◽  
Shubang Sridhar ◽  
Gabe Evans ◽  
Eliot Winer
Keyword(s):  
Virtual Reality ◽  
Additive Manufacturing ◽  
Virtual Environment ◽  
Machine Component ◽  
3D Printer ◽  
Software Application ◽  
Outreach Programs ◽  
Cave System ◽  
Before And After ◽  
3D Printers

The promise of cheap and widely available 3D printers may be one of the best and worst aspects of Additive Manufacturing (AM). A non-technical consumer may pay significantly more for a 3D printer with “no assembly required”. Since it is reasonable to assume that they may not understand how the printer works and what will come out of it, they may wind up returning it because it does not meet their expectations. While consumers are starting to use 3D printers, designers in industry are utilizing Rapid Prototyping (RP) machines to manufacture final products in addition to prototypes. Designers will need to know AM principles in order to communicate design specifications to a RP lab technician so that a part passes Quality Assurance inspection. Training users on fundamental layer-based manufacturing methods can assist before and after a 3D printer purchase and reduce the strain on RP labs in industry. This paper presents an extensible software application that simulates an AM process in a Virtual Reality (VR) environment. The application parses machine component movements and printed segment attributes from G-code files exported from the MakerBot® Computer Aided Manufacturing (CAM) software. Position, speed, and type of movement are used to simulate the physical machine movements. A print “segment” is created at the start and end positions of a print movement. Color-coding segment attributes and modifying their size and shape establishes a visual relationship between terminology for a print setting and its representation in the virtual environment. This visual relationship between printed segments and print settings makes it easier to learn the 3D printing process and associated terminology. Novice and expert users can modify print settings in the virtual environment before and after printing a prototype. Identifying and fixing a mistake in the virtual environment reduces the time and cost to print a part with the desired quality. Training multidisciplinary users in a virtual world allows them to explore AM processes in detail from any angle or scale desired. This application has been tested in a cube shaped virtual reality CAVE system with each side measuring ten feet powered by a 96-node graphics computer cluster. Approximately 20 hours of demonstrations have been performed for public outreach programs related to STEM initiatives and visitors from industry who have had a variety of AM experience.

scholarly journals The Use of 3D Printing in Comparative Research and Teaching

2020 ◽  
Vol 33 ◽  
Author(s):  
Hitesh D. Vora ◽  
Charles I. Abramson
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Comparative Research ◽  
Student Interest ◽  
3D Printer ◽  
Design Issues ◽  
Apparatus Design ◽  
The Past ◽  
Research And Teaching ◽  
3D Printers

The past decade has witnessed remarkable advancements in 3D printing or more scientifically called as additive manufacturing. Surprisingly, few comparative psychologists have taken advantage of 3D printing in the design of apparatus. Our paper discusses the advantages of 3D printing, the type of 3D printers (printing technologies) we have found most useful for various applications, offers practical suggestions on how engineers and comparative psychologists can communicate with each other on apparatus design issues and discuss how apparatus design with 3D printing can increase student interest in the STEM field. We first document that comparative/experimental psychologists seldom use 3D printer technology and then offer recommendations on how to increase the use of such technology in the behavioral sciences.

scholarly journals Building Material: Exploring Playfulness of 3D Printers

2014 ◽  
Vol 1 (3) ◽  
Author(s):  
Stephanie De Smale
Keyword(s):  
3D Printing ◽  
Open Source ◽  
Open Source Software ◽  
Building Material ◽  
3D Printer ◽  
General Development ◽  
3D Printers ◽  
Software And Hardware ◽  
Open Source Development

This article explores the practice of 3D printers from a playful perspective. Using the Ultimaker Original as a case study, it addresses the question of whether the practice of open source software and hardware in 3D printing is inherently playful and how the user affects and is affected by its playability. After examining the materiality of open source development and hacking processes in the Ultimaker Original, I will argue how playfulness of 3D printing stimulates hacking the 3D printer. From a broader perspective, the playful practice of 3D printing can be seen as part of a general development towards the ludification of culture.

scholarly journals Can 3-D Printing Go Green?

2016 ◽  
Vol 138 (10) ◽  
pp. 42-47 ◽  
Author(s):  
R.P. Siegel
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Supply Chains ◽  
3D Printer ◽  
Vinyl Ethers ◽  
Fuel Use ◽  
Advantages And Disadvantages ◽  
Solid Objects ◽  
3D Printers

This article explores various advantages and disadvantages of 3D printing. As 3D printers have become smaller, less expensive, and easier to use, they have become increasingly popular. Additive manufacturing could make manufacturing more sustainable because it creates far less waste than traditional subtractive methods and because making products locally would shorten supply chains, reducing fuel use and carbon pollution from shipping. The researchers believe that 3D printing could ‘accelerate consumerism of nonbiodegradable throwaway plastic objects.’ Students have found that 3D printers use six common resin types: acrylates, thiols, alkenes, vinyl ethers, epoxides, and oxetanes. Acrylates, which the Ember printer uses, are the most common because they work well in a 3D printer and are considered safest for creating solid objects from liquids.

scholarly journals Vibration Suppression of a Fast Filament Fabrication 3d Printer via Resonance Compensation

2021 ◽  
Vol 9 (12) ◽  
pp. 15-17
Author(s):  
Patel Mann B
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
High Speed ◽  
Manufacturing Systems ◽  
Vibration Suppression ◽  
System Development ◽  
3D Printer ◽  
Engineering Mathematics ◽  
Mathematical System ◽  
3D Printers

Abstract: Additive manufacturing systems especially 3d printers are made by rigid links which provide sufficient stiffness to give motion to 3d printing head system which are moving at very high speed &acceleration. It has been found out that high-speed manipulators generate vibration problem and 3dprinting head is one of them which encounter significant vibration at high speed and acceleration. Therefore, evolution in mathematical control system is necessary for effective vibration suppression and to allow fast motion of 3d printing head at high speed and acceleration. In this paper we develop experiment where we measure the resonance frequency of our bed swinging 3d printer and with graph we optimized it with mathematical system which allows printer to run 140% faster speed and over 600% higher acceleration with same quality and precision. Keyword: 1. Additive Manufacturing, 2. Complex system development, 3. Mechatronics, 4. Robotics, 5. Physics. 6. Advanced engineering mathematics 7. High speed manipulators.

scholarly journals Evaluation of the Circularity of Recycled PLA Filaments for 3D Printers

2020 ◽  
Vol 10 (24) ◽  
pp. 8967
Author(s):  
Victor Gil Muñoz ◽  
Luisa M. Muneta ◽  
Ruth Carrasco-Gallego ◽  
Juan de Juanes Marquez ◽  
David Hidalgo-Carvajal
Keyword(s):  
Circular Economy ◽  
Protective Equipment ◽  
Fused Filament Fabrication ◽  
Circular Loop ◽  
Material Supply ◽  
3D Printers ◽  
3D Printed ◽  
Circular Economics ◽  
High Level ◽  
Additional Value

The circular economy model offers great opportunities to companies, as it not only allows them to capture additional value from their products and materials, but also reduce the fluctuations of price-related risks and material supply. These risks are present in all kind of businesses not based on the circular economy. The circular economy also enables economic growth without the need for more resources. This is because each unit has a higher value as a result of recycling and reuse of products and materials after use. Following this circular economics framework, the Polytechnic University of Madrid (Universidad Politécnica de Madrid, UPM) has adopted strategies aimed at improving the circularity of products. In particular, this article provides the result of obtaining recycled PLA filament from waste originating from university 3D FFF (fused filament fabrication) printers and waste generated by “Coronamakers” in the production of visors and parts for PPEs (Personal Protective Equipment) during the lockdown period of COVID-19 in Spain. This filament is used in the production of 3D printed parts that university students use in their classes, so the circular loop is closed. The obtained score of Material Circularity Indicator (MCI) of this material has been calculated, indicating its high level of circularity.

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 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.

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