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This work describes a set of new inexpensive 3D printers and their applications in experiential learning as part of engineering education encompassing two multidisciplinary undergraduate engineering programs: Mechatronics and Industrial Engineering. The work addresses applications of inexpensive 3D printers in support of many engineering and noneng...
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... 3D printers in the lab use the same 1.75mm diameter filaments and have the same nozzle diameter of 0.4 mm. A comparison of printer characteristics is tabulated in Table 1. While our 3D printers can only print in ABS, PLA, dissolvable plastic, glow-in-the-dark plastic and flexible plastic, other more-expensive 3D printers (some of them not yet commercially available) are capable of printing objects in Aluminum, Titanium, concrete, glass, sugar, and chocolate. ...
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Citations
... e 3D slice model is traversed and searched according to the matrix relationship, and the cylindrical coordinates obtained by intersecting the same section are stored in the same group. Each layer generates a set of intersecting surfaces with layer number as the search criterion [11,12]. ...
In view of the problems of low printing efficiency and low accuracy of 3D printers currently developed in the domestic market, based on fused deposition modeling technology, this paper constructs a processing data model with a cylindrical coordinate data structure by 3D printing and processing models according to the cylindrical coordinate slicing rules. The data model can be used to search in adjacent cylinders to obtain the cylindrical coordinate information of the printing model and use the depth-first traversal method of the slicing model to establish a cylindrical coordinate slicing function. Aiming at the problem of “pointcut” of the model cylinder in cylindrical coordinate slice, a high-performance calculation method of machining accuracy based on the cylindrical coordinate slice algorithm is proposed. This algorithm is used to perform 3D printing processing through high-performance computing of cylindrical coordinate slices. After obtaining the intersection points obtained according to the order of the cylindrical coordinate slices of the model, through the automatic generation of the section profile corresponding to the printed model in OpenGL software, the profile direction of the model section can be determined according to the first cylindrical coordinate slice data generated by cutting each contour. The software and hardware of the 3D printer control system are designed, and the actual model printing test is conducted at the same time. By debugging and testing each module of software and hardware, the system is guaranteed to run stably under scientific and reasonable design. Finally, the experimental analysis results show that the algorithm proposed in this paper can effectively reduce the topology time required for cylindrical coordinate slicing, and the operation is simple, stable, and reliable.
... 3D printer libraries have been trialled, providing a point of access/support for 3D printing for students/faculty across disciplines beyond engineering and technology [4]. There are many benefits of using 3D printing in engineering education, offering learning opportunities across computer aided design (CAD), digital manufacturing, software skills, amongst others [5]. 3D printing is used in various teaching settings ranging from schools through to higher education and across multiple subjects ranging from engineering, product design, amongst others [6]. ...
The DIY movement goes back to the late 60’s and started the trend of shared tools as a reaction to the lack of skills and education on how things are made; this resulted in an increased awareness of democratic manufacturing resources and facilities, especially makerspaces and hackspaces, innovation labs, 3D printer farms etc. At Nottingham Trent University (NTU), we have observed an increase in students choosing to study Product Design thus increasing pressure on workshop/manufacturing spaces, especially automated manufacturing resources such as 3D Printers. Subsequently, the maker experiences students have been experiencing within the workshop environment temporarily lessened to ensure the needs of our rapidly increasing student cohorts are catered for. This paper explores how democratic technologies and manufacturing tools have overcome this issue by enabling designers, makers, and hobbyists to increase their access to facilities within the Product Design Department at NTU. This paper explores/reflects on the initial development of a 3D printer farm located in a product design studio where a group of sixty-nine students manufactured/assembled eighteen Creality CR-10S 3D printers. The success of the initial student led democratic manufacturing project resulted in ADBE developing a second 3D printer farm in a second product design studio consisting of a further eight Creality CR-10S V3 3D printers. The 3D printer farms are now complimented by a blended induction allowing for student independent use of the resource. Student feedback is also presented regarding the blended induction to ascertain knowledge acquisition and confidence on using the resources independently.
... Jaksic (2014) [22] explained that at Colorado State University Pueblo, 3DP is being used in industrial engineering and mechatronics programmes with an integrated courses. The investigation represented methodically the influence of 3D-printing technology, in the urological field. ...
... 3D printed paper is safe, friendly environmental, recyclable and no need to post-processing. Figures (22,23,24) are showing 3D printing as paper forms. [44] have a research conducted into the potential of 3D printing biomaterials for a host of medical applications. ...
... Therefore, an inclusion of up-to-date 3D printing technology in higher education is beneficial for undergraduates to have them prepared for their future careers. 3D printing of plastic material, such as fused deposition modeling (FDM), has been included into many undergraduate curricula [3][4][5]. ...
3D printing is a promising manufacturing technology for its generic tooling, flexible and customized design, and efficient usage of raw materials. The inclusion of up-to-date 3D printing technology in higher education is beneficial for undergraduates to get prepared for future careers. However, some 3D printing technologies, such as binder jetting, have not been widely adopted into the undergraduate education due to the considerable technology complexity. This paper reports a sixteen-month project to involve engineering undergraduates in the education of binder jetting 3D printing technology. A binder jetting printer was assembled from scratch. The project consisted of two phases: development of a prototype using an existing design and modification of the original design to enhance printing performance and meet special requirements. Main modifications include frame block, belt tensioner, powder tank, and printer closure. Self-directed strategy was chosen by team members. The weekly survey included questions on students' satisfaction level and project contribution, and the final questionnaire quantified their understanding level of binder jetting technology gained from the project. Weekly survey results showed that the undergraduates had high-level sense of satisfaction and contribution during the project. Final questionnaire indicated significant improvement of the understanding of binder jetting 3D printing technology, including its mechanism, advantages, limits, and application scenarios. This project successfully involved engineering undergraduates in the project of an emerging 3D printing technology and reached the designed educational goal.
... Robotics is becoming one of the most attractive majors at the Colleges of Technology because of the advantages in respect of applications and future careers [1]. In addition, the field of robotics has been broadened significantly by a number of new topics including additive manufacturing [2], automation [3], internet of things [4], virtual reality [5], etc. Therefore, more and more Colleges of Technology have had robotics programs, or they are planning to create robotics programs. ...
Robotics is one form of interdisciplinary field
which involves the tight integration of mechanical systems,
electrical systems, computer systems, and information systems.
However for students enrolled in the Engineering Technology
programs, especially the Mechanical Engineering Technology
(MET) program to learn robotics, they are confronted with two
difficulties: (1) limited number of fundamental robotics-related
courses, (2) limited robotics course hours. In order to help the
students of MET to overcome these two difficulties, a wireless
sensor and control network (WSCN) platform is designed and
employed. This platform has two advantages: affordable and
foolproof. Therefore, students can avoid exposing themselves to
complicated algorithms. They can focus on the applications of
robotics to develop sophisticated projects. Before introducing
WSCN,, the existing entry-level robotics course was redesigned
based on the pre-class survey results and the assessment of the
students’ abilities. Subsequently, the students were instructed to
familiarize themselves with the basic sensors and actuators, the
Arduino development kit and the c-based programming. Then,
the platform was implemented in the course. In addition, a series
of homework and projects were assigned. Through these
assignments, the students were able to design practical projects
using the platform. It was proven that the platform enhanced the
students’ understanding of the fundamental concepts, inspired
the students’ interest in this course, and improved their
performance in the robotics classes.
... There are multiple opportunities for students to acquire 3DP skills at the Missouri University of Science and Technology, with 3DP skills development opportunities available in courses focusing on design and basic CAD modelling; product modelling; rapid prototyping; integrated product development; as well as in advanced level courses [115]. Meanwhile at Colorado State University-Pueblo, 3DP is being used in industrial engineering and mechatronics programmes, and integrated into 12 courses in total [116]. Uses of 3DP include direct learning of 3DP skills during rapid prototyping and functional part manufacturing, along with 3D visualizations and specimens for testing the mechanical properties of materials. ...
... Uses of 3DP include direct learning of 3DP skills during rapid prototyping and functional part manufacturing, along with 3D visualizations and specimens for testing the mechanical properties of materials. Commenting on what they believe to be the significant benefits of integrating 3DP into the undergraduate engineering curriculum, the Program Director lists: "Creation of functional parts in the first year of study by various engineering majors, quick verification of designs early in the curriculum, fast turn-around times from "imagination to implementation," the decreased need for students with the well-developed machining skills, connections with other sciences and mathematics through 3D built objects, and increased lab safety" [116]. ...
... A growing number of universities are finding applications for 3DP in their outreach activities. While outreach from universities into middle and high schools is the most commonly described [115,116,150,[312][313][314][315][316][317][318][319], there are also descriptions of 3DP being used in an outreach function to enable the professional development of teachers [150], librarians [130,146], and industry professionals [115,117,150], as well as engage with students in other universities [316], and adult learners [150]. ...
The emergence of additive manufacturing and 3D printing technologies is introducing industrial skills deficits and opportunities for new teaching practices in a range of subjects and educational settings. In response, research investigating these practices is emerging across a wide range of education disciplines, but often without reference to studies in other disciplines. Responding to this problem, this article synthesizes these dispersed bodies of research to provide a state-of-the-art literature review of where and how 3D printing is being used in the education system. Through investigating the application of 3D printing in schools, universities, libraries and special education settings, six use categories are identified and described: (1) to teach students about 3D printing; (2) to teach educators about 3D printing; (3) as a support technology during teaching; (4) to produce artefacts that aid learning; (5) to create assistive technologies; and (6) to support outreach activities. Although evidence can be found of 3D printing-based teaching practices in each of these six categories, implementation remains immature, and recommendations are made for future research and education policy.
... However, recently, a number of fundamental 3D printing patents expired and opened this technology to the rest of the world. New companies started producing inexpensive FFF 3D printers thus enabling their expansive use in engineering education [20]. Numerous undergraduate engineering 3D-printing laboratories with multiple 3D printers have been established [21][22][23][24][25]. ...
... During the lecture portion of the course students learn about various 3D printing technologies. In the lab, they create various small objects using nine FFF 3D printers [20]. ...
While the Fused Filament Fabrication (FFF) 3D printers are now ubiquitous devices in many undergraduate engineering curricula, the Digital Light Processing (DLP) 3D printers just became affordable for widespread use in undergraduate engineering labs. This work has two objectives. It describes, for the first time, the similarities and differences between three inexpensive DLP 3D printers and one FFF 3D printer as evaluated by undergraduate students to help others develop DLP 3D printing labs. Furthermore, it provides the means necessary for student engagement and learning opportunities. While measuring various characteristics of three inexpensive DLP and one FFF 3D printer, students became more knowledgeable and accustomed to different additive manufacturing (AM) processes. In a two-hour lab session students created objects, measured process parameters, measured object characteristics, and discussed material properties. They were impressed with this new and affordable 3D printing process.
... However, recently, a number of fundamental 3D printing patents expired and opened this technology to the rest of the world. New companies started producing inexpensive FFF 3D printers thus enabling their expansive use in engineering education [20]. Numerous undergraduate engineering 3D-printing laboratories with multiple 3D printers have been established [21][22][23][24][25]. ...
... During the lecture portion of the course students learn about various 3D printing technologies. In the lab, they create various small objects using nine FFF 3D printers [20]. ...
While the Fused Filament Fabrication (FFF) 3D printers are now ubiquitous devices in many undergraduate engineering curricula, the Digital Light Processing (DLP) 3D printers just became affordable for widespread use in undergraduate engineering labs. This work has two objectives. It describes, for the first time, the similarities and differences between three inexpensive DLP 3D printers and one FFF 3D printer as evaluated by undergraduate students to help others develop DLP 3D printing labs. Furthermore, it provides the means necessary for student engagement and learning opportunities. While measuring various characteristics of three inexpensive DLP and one FFF 3D printer, students became more knowledgeable and accustomed to different additive manufacturing (AM) processes. In a two-hour lab session students created objects, measured process parameters, measured object characteristics, and discussed material properties. They were impressed with this new and affordable 3D printing process.
... Based on the loading type and the nature of the structure, they analyzed force and stress and determined the size of the structure. Students were asked to design with 3-D printing technology based on renewable energy type, operating environment, etc. and verify by hands-on experimental study [15][16][17][18][19] . For grading, a rubric was provided with an expected design content and steps to be followed. ...
... There are multiple opportunities for students to acquire 3DP skills at the Missouri University of Science and Technology, with 3DP skills development opportunities available in courses focusing on design and basic CAD modelling; product modelling; rapid prototyping; integrated product development; as well as in advanced level courses [83]. Meanwhile at Colorado State University-Pueblo, 3DP is being used in industrial engineering and mechatronics programmes, and integrated into 12 courses in total [84]. Uses of 3DP include direct learning of 3DP skills during rapid prototyping and functional part manufacturing, along with 3D visualizations and specimens for testing the mechanical properties of materials. ...
... Uses of 3DP include direct learning of 3DP skills during rapid prototyping and functional part manufacturing, along with 3D visualizations and specimens for testing the mechanical properties of materials. Commenting on what they believe to be the significant benefits of integrating 3DP into the undergraduate engineering curriculum, the Program Director lists: "Creation of functional parts in the first year of study by various engineering majors, quick verification of designs early in the curriculum, fast turn-around times from "imagination to implementation," the decreased need for students with the well-developed machining skills, connections with other sciences and mathematics through 3D built objects, and increased lab safety" [84]. ...
... 3.6 Using 3D printing to support outreach activities A growing number of universities are finding applications for 3DP in their outreach activities. While outreach from universities into middle and high schools is the most commonly described [83,84,118,[286][287][288][289][290][291][292][293], there are also descriptions of 3DP being used in an outreach function to enable the professional development of teachers [118], librarians [98,114], and industry professionals [83,85,118], as well as engage with students in other universities [290], and adult learners [118]. ...
The emergence of additive manufacturing and 3D printing technologies is introducing industrial skills deficits and opportunities for new teaching practices in a range of subjects and educational settings.
In response, research investigating these practices is emerging across a wide range of education disciplines, but often without reference to studies in other disciplines. Responding to this problem, this article synthesizes these dispersed bodies of research to provide a state-of-the-art literature review of where and how 3D printing is being used in the education system. Through investigating the application of 3D printing in schools, universities, libraries and special education settings, six use categories are identified and described: (1) to teach students about 3D printing; (2) to teach educators about 3D printing; (3) as a support technology during teaching; (4) to produce artefacts that aid learning; (5) to create assistive technologies; and (6) to support outreach activities. Although evidence can be found of 3D printing-based teaching practices in each of these six categories, implementation remains immature, and recommendations are made for future research and education policy.
The published version of the article in the journal "Additive Manufacturing" is available here: https://dfab.it/3DPTeaching
