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针对目前熔融沉积成型义齿3D打印机不能连续进料、打印精度不高等缺点,基于开源的熔融沉积成型3D打印机,重新设计了机械结构和电气控制系统,实现了打印机的持续进料、不间断的高精度打印。采用气泵、螺杆进料机构,保证连续稳定的进料,采用Hbot型的传动机构,并借助Bresenham算法实现协调运动、均匀进料,自动调平保证打印的稳定性,并对进给量进行标定,保证填充的紧密。论述了挤出系统的结构、硬件系统框图和软件的实现。该设计打印质量良好。 相似文献
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熔融沉积成型法(FDM)是重要的3D打印成型方法之一,提升结构复杂打印件的打印效率是3D打印领域一直的追求目标。在应用FDM技术对一些悬臂结构进行3D打印时由于添加支撑结构致使试件打印质量偏低或打印成功率低,设计了工作平台可翻转的3D打印机。对结构及原理进行介绍的同时为装置设计了新的控制方法,解释了新打印思路的可行性。通过对具有代表性试件的打印证实了打印机的功能实现的可行性以及正确性。 相似文献
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针对3D打印机的使用成本高、打印效率低的弊端,提出3D打印机的低成本、多头高效打印的生产模式.依据熔融沉积成型原理设计了多打印头3D打印机,并与单打印头3D打印机进行对比实验,结果表明据此设计的多头3D打印机,能够3～5倍提高工作效率和设备利用率,快速完成产品的生产工作,为3D打印机在工业生产中的高效快捷生产提供了研究方向. 相似文献
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3D打印技术也称为快速成型,是一门新兴的技术。其中基于融熔沉积技术的桌面3D打印机应用日益广泛。为了使打印材料牢固的涂覆在打印机工作台表面,需要将一些利于粘附的材料贴附到3D打印机工作台表面。根据不同的打印耗材,应使用不同的贴面材料。文章分析了几种贴面材料的性能,使用方法,适用范围。并以使用PLA （聚乳酸）线材进行3D打印为例,分析了几种工作台贴面材料的优缺点。 相似文献
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《课外阅读》2014,(8)
<正>3D打印3D打印是快速成型技术的一种,它是一种以数字模型文件为基础,运用粉末状金属或塑料等可粘合材料,通过逐层打印的方式来构造物体的技术。1986年,Charles Hull开发了第一台商业3D印刷机。1993年,麻省理工学院获3D印刷技术专利。1995年,美国ZCorp公司从麻省理工学院获得唯一授权并开始开发3D打印机。2005年,市场上首个高清晰彩色3D打印机Spectrum Z510由ZCorp公司研制成功。2010年11月,世界上第一辆由3D打印机打印而成的汽车Urbee问世。2011年6月,发布了全球第一款3D打印的比基尼。2011年7月,英国研究人员开发出世界上第一台3D巧克力打印机。2011年8月,南安普顿大学的工程师们开发出世界上第一架3D打印的飞机。 相似文献
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应用3D打印技术,进行齿轮系列零件由建模到3D打印的任务导向教学,指导学生使用SolidWorks设计软件和热塑挤压3D打印机完成齿轮系列零件的建模、打印、装配、验证等任务导向训练,并推广应用到其他机构设计模块中,达到"教、学、做"一体化教学效果,提高学生机械原理知识的实践应用能力、设计创新能力。 相似文献
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文章对3D打印技术的原理及其在创新实践中的应用进行了基本的介绍,结合机电创新实验室学生实践活动的实际经验,对创新实践活动中,3D打印技术应用面对的主要问题进行了列举和分析,对3D打印机选型、环境及参数设置、零件摆放及常见的翘边和堵料等问题,提出了一定的解决方案。 相似文献
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《实验室研究与探索》2015,(8):158-161
3D打印作为快速制造领域的一种新兴的技术,正在迅速崛起,将成为未来制造业的重要组成部分。为了培养学生的工程实践能力以及对先进数字化技术的了解和掌握,对基于3D打印技术的实验教学进行了建设和实践。学生通过三维数字化建模,数据处理和操作3D打印机生成实物模型的全过程,加深对3D打印技术的认识和理解,将有助于顺应产业界对人才培养的最新需求,提高学生运用先进设计和制造技术的综合能力。 相似文献
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Laura Gosine Brianna Kean Chelsea Parsons Matthew B. McSweeney 《Journal of Food Science Education》2021,20(1):18-25
Three‐dimensional (3D) food printing is a new technology that can be used to produce personalized and customized food products. However, very little research has been completed on how 3D food printers could be used as educational tools. As such, the objective of this study was to evaluate how teachers (n = 6), dietitians (n = 6), and nutrition students (n = 11) envision the use of 3D food printers when disseminating information about food and nutrition. Focus groups were conducted with teachers, dietitians, and nutrition students. Initially, the participants were introduced to the concept of 3D food printing and then they were asked how they could use a 3D food printer in their teachings. The participants did not feel that a 3D food printer would enhance their teaching and instead felt it could confuse or frighten people. Also, all of the participants were worried about learning how to 3D print foods. The participants did state that people would be interested in watching a 3D food printer. Furthermore, the teachers and nutrition students indicated they thought a demonstration of a 3D food printer would lead to more interest in food and nutrition. Additionally, they thought a 3D food printer could be used to create visually appealing foods. Overall, until 3D food printers are found in residential and commercial kitchens, the participants did not think it would enhance their teachings; however, they did indicate that 3D food printing demonstrations could lead to students being interested in the food and nutrition fields. 相似文献
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Teemu Leinonen Marjo Virnes Iida Hietala Jaana Brinck 《The International Journal of Art & Design Education》2020,39(3):600-615
In recent years, digital fabrication, and especially its associated activities of 3D design and printing, have taken root in school education as curriculum‐based and maker‐oriented learning activities. This article explores the adoption of 3D design and printing for learning by fourth, fifth and sixth grade children (n=64) in multidisciplinary learning modules in elementary school education. School‐coordinated 3D projects were not led by design experts, such as art and design teachers, designers, researchers or technical specialists, but run ‘in the wild’ by school teachers. The study was conducted by using an ethnographic research design, including field observations, non‐formal interviews and a reflective questionnaire. The results indicate that, in the adoption of 3D printing activities, learning is centred on the technical skills and the usage of 3D tools. Hence, the elementary ABCs of 3D printing do not achieve the full design and creativity potential of digital fabrication that earlier research has suggested. However, the results do have implications for the potential of 3D printing projects to increase children’s empowerment. In their current state, 3D design and printing are some of the learning tools, among others, and similar achievements can be achieved with other hands‐on learning technologies. In order to enhance the learning of creativity and design thinking skills, 3D activities in school should be planned accordingly. 相似文献
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3D打印是最近两年开始流行的一种快速成形技术,它以数字模型文件为基础,通过逐层打印的方式来构造物体。目前,已经有学者尝试将它应用于教学中,取得了一定成果。从文献研究入手,介绍了3D打印机的原理和3D打印技术的发展现状;呈现了3D打印在各学科教学中的创造性应用,并列举了三个典型案例加以剖析;进一步分析了其在学习环境中的角色、主要应用模式和创新性用法;最后讨论了目前3D打印应用于教学的前景、优势和不足。 相似文献
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介绍一种利用低端电子秤结合LP-50标签打印机设计标签打印系统,讨论硬件改造的原理和软件设计的过程,解决低端电子秤无法打印标签的问题。该方案能够使用户自由地设计标签模板和编辑产品信息。上位机软件经串口把标签代码信息下载到下位机存储器上,用户只需通过按键选择相应的标签模板就可以由下位机串口把打印信息输出给打印机打印标签。 相似文献
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3D打印技术的发展使得产品的设计、制造和传播更为便利化,但是也随之引发侵犯著作权的风险。根据产品设计文档进行3D打印产品的行为是否属于著作权法上的复制行为,抑或是产品制造行为,是判定其构成侵权的重要因素。对于美术作品或者实用产品的设计文档进行3D打印,将产生不同的法律后果。在3D打印领域,我们应当对于功能性产品的设计文档提供著作复制权保护,合理设定复制权保护范围,同时拓展合理使用和默示许可等著作权保护的豁免制度,以期通过3D打印增进社会公共利益。 相似文献
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使用NDPS，打印机、打印队列和打印服务器的功能被集合到一个称为打印机代理(Printer Agent)的实体中，简化网络打印系统的管理，降低管理成本。 相似文献
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Min Jeong Song 《Educational Media International》2018,55(3):183-198
3D printing implementation in educational contexts has gained considerable attention in recent years. However, research shows that both in-service and pre-service teachers lack digital literacy and the confidence required to teach this emerging technology. This study reports the current challenges and opportunities in 3D printing education in Korea and identifies the range of knowledge required for teachers to integrate 3D printing technology into classrooms in meaningful ways. The technological, pedagogical, and content knowledge (TPACK) framework was used to analyze the certificate program for 3D printing educators and in-service teachers’ practices. The findings from interviews with 10 in-service teachers and participant observation in the 3D printing training workshop for pre-service teachers revealed that technological knowledge is overly emphasized in the 3D printing teacher training curriculum. Thus, many in-service teachers develop their content knowledge and pedagogical knowledge by exchanging ideas with other teachers online and running project-based courses with flipped classroom approaches. Two potential paths were discovered for developing curricula that cross over the domains of the TPACK framework to successfully integrate the technology into classrooms: collaboration between teachers in different subject areas and industry experts to develop technical knowledge and curriculum, and contextualizing 3D printing technology in relation to open-source digital culture. 相似文献
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张伟 《南通职业大学学报》2012,26(4):107-109
运用Gmail邮件系统作为连接云打印前台与后台的桥梁,采用运行在Chrome云打印平台上的第三方软件接口,文章提出了基于Windows、便于用户操作的普通打印机实现云打印的技术思路与实施方案,其突破了传统网络共享打印的区域限制,且不依赖于打印设备驱动。实践表明,该方案易于操作、实用性强。 相似文献
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Two material 3D printing is becoming increasingly popular, inexpensive and accessible. In this paper, freely available printable files and dual extrusion fused deposition modelling were combined to create a number of functional anatomical models. To represent muscle and bone FilaFlex3D flexible filament and polylactic acid (PLA) filament were extruded respectively via a single 0.4 mm nozzle using a Big Builder printer. For each filament, cubes (5 mm3) were printed and analyzed for X, Y, and Z accuracy. The PLA printed cubes resulted in errors averaging just 1.2% across all directions but for FilaFlex3D printed cubes the errors were statistically significantly greater (average of 3.2%). As an exemplar, a focus was placed on the muscles, bones and cartilage of upper airway and neck. The resulting single prints combined flexible and hard structures. A single print model of the vocal cords was constructed which permitted movement of the arytenoids on the cricoid cartilage and served to illustrate the action of intrinsic laryngeal muscles. As University libraries become increasingly engaged in offering inexpensive 3D printing services it may soon become common place for both student and educator to access websites, download free models or 3D body parts and only pay the costs of print consumables. Novel models can be manufactured as dissectible, functional multi‐layered units and offer rich possibilities for sectional and/or reduced anatomy. This approach can liberate the anatomist from constraints of inflexible hard models or plastinated specimens and engage in the design of class specific models of the future. Anat Sci Educ 11: 65–72. © 2017 American Association of Anatomists. 相似文献