Module 1 Overview模块 1 概述

Overview 概述

You will gain an understanding of the history behind the creation of desktop 3D printers, the different types of desktop 3D printers, how they work, and what they are typically used for. Then we will observe a desktop 3D printer “in the wild,” noting the sequence of components that contribute to the process of fabricating a part. Armed with this experience, we can then examine a number of common perceptions and misperceptions held about desktop 3D printers to provide you with additional context for what desktop 3D printing is, isn’t, and isn’t yet. We will also share details to help you make an informed decision about the class of desktop 3D printer hardware that suits your specific needs and budget.
您将了解桌面 3D 打印机背后的历史，不同类型的桌面 3D 打印机，它们的工作原理以及通常的用途。然后我们将观察桌面 3D 打印机“在野外”的情况，注意构成制造零件过程的组件顺序。有了这次经验，我们就可以检查关于桌面 3D 打印机的许多常见观点和误解，为您提供桌面 3D 打印是什么、不是以及尚未是什么的额外背景。我们还将分享详细信息，帮助您做出关于适合您特定需求和预算的桌面 3D 打印机硬件类别的明智决定。

Time 时间

This module should take approximately 5.5 hours of dedicated time to complete, with its videos and assignments.
这个模块需要大约 5.5 小时的专注时间来完成，包括其视频和作业。

Lessons 课程

The lessons for this module are listed below (with assignments in bold italics):
本模块的课程如下（加粗斜体表示作业）：

Goals and Objectives 目标和目标

After you actively engage in the learning experiences in this module, you should be able to:
在您积极参与本模块的学习体验后，您应该能够：

• Explain how “desktop 3D printers” emerges from and continues to extend the thirty+ year history of Additive Manufacturing.
  解释“桌面 3D 打印机”如何从三十多年的增材制造历史中产生并继续扩展。
• Differentiate between popular types of desktop 3D printing technology, including recognizing limitations and opportunities associated with each.
  区分流行的桌面 3D 打印技术类型，包括识别每种技术的局限性和机遇。
• Develop a broad, practical overview of the elements involved when a desktop 3D printer produces a printed part.
  开发一个关于桌面 3D 打印机生产打印部件所涉及元素的广泛、实用的概述。
• Recognize the number of ways you might gain access to desktop 3D printers or 3D printing services where you are located.
  识别您所在地区获取桌面 3D 打印机或 3D 打印服务的方式数量。
• Review a number of strategies to help guide you should you wish to purchase a desktop 3D printer.
  评估多种策略，以帮助您在想要购买桌面 3D 打印机时进行指导。
• Recognize the reasons that some students of desktop 3D printing build printer kit to better understand how the technology functions.
  认识到一些桌面 3D 打印学生组装打印机套件的原因，以便更好地理解该技术的运作方式。
• Solve a few of the common misperceptions frequently cropping up around this topic.
  解决围绕这个话题频繁出现的几个常见误解。
• Recognize the passions that attracted a team of designers and engineers to the challenge of building a professional desktop 3D printing company.
  认识到吸引一群设计师和工程师接受挑战，共同打造一家专业桌面 3D 打印公司的激情。

Key Phrases/Concepts 关键短语/概念

Keep your eyes open for the following key terms or phrases as you interact with the lectures and complete the activities.
请注意以下关键词或短语，在您与讲座互动和完成活动时保持关注。

• Desktop 3D Printers vs Industrial 3D Printers
  桌面 3D 打印机与工业 3D 打印机对比
• Fused Deposition Modeling (FDM)
  熔融沉积建模（FDM）
• Fused Filament Fabrication (FFF)
  熔融丝材制造（FFF）
• Selective Laser Sintering (SLS)
  选择性激光烧结（SLS）
• Stereolithography (SLA)  立体光固化（SLA）
• Rapid Prototyping (RP) and Additive Manufacturing (AM)
  快速原型设计（RP）和增材制造（AM）

Guiding Questions 引导问题

Develop your answers to the following guiding questions while watching lectures and working on assignments throughout the module.
在观看讲座和完成模块中的作业时，针对以下指导性问题发展你的答案。

• What experience and products did you associate with 3D printing before this Module?
  在进入本模块之前，您将哪些经验和产品与 3D 打印联系起来？
• In what ways does “desktop” 3D printing match and in which ways is it unique within the 30 year development of the 3D printing field?
  桌面 3D 打印在 30 年的 3D 打印领域发展中，在哪些方面与之相匹配，又在哪些方面独具特色？
• Which desktop 3D printing technology suits your specific needs and interests?
  哪种桌面 3D 打印技术符合您的具体需求和兴趣？
• What use cases for desktop 3D printing surprise you, and what fields might benefit from this technology more than they are currently?
  桌面 3D 打印有哪些应用场景让你感到惊讶，哪些领域可能比现在更多地受益于这项技术？

Getting and Giving Help 获取与给予帮助

You can get/give help via the following means:
您可以通过以下方式获得/提供帮助：

• Use the Learner Help Center to find information regarding specific technical problems. For example, technical problems would include error messages, difficulty submitting assignments, or problems with video playback. If you cannot find an answer in the documentation, you can also report your problem to the Coursera staff by clicking on the Contact Us! link available on each topic's page within the Learner Help Center.
  使用学习帮助中心查找有关特定技术问题的信息。例如，技术问题包括错误信息、提交作业困难或视频播放问题。如果在文档中找不到答案，您还可以通过点击学习帮助中心每个主题页面上的“联系我们！”链接向 Coursera 工作人员报告您的问题。
• Use the Content Issues forum to report errors in lecture video content, assignment questions and answers, assignment grading, text and links on course pages, or the content of other course materials. University of Illinois staff and community TAs will monitor this forum and respond to issues.
  使用内容问题论坛来报告讲座视频内容、作业题目和答案、作业评分、课程页面上的文本和链接，或其他课程材料的错误。伊利诺伊大学的工作人员和社区助教将监控此论坛并回应问题。