Module 2 Overview模块 2 概述

Overview 概述

In this module, we will introduce an overview of 3D printer anatomy, and then explore the Control System and Mechanical System.  You will build an understanding of how the control system influences the mechanical system and the communications that take place amongst these different subsystems of a 3D printer. 
在这个模块中，我们将介绍 3D 打印机解剖概述，然后探讨控制系统和机械系统。您将建立起对控制系统如何影响机械系统以及这些不同子系统之间发生的通信的理解。

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 will be able to:
在您积极参与本模块的学习体验后，您将能够：

• Identify the major systems and components of a desktop 3D printer.
  识别桌面 3D 打印机的主体系统和组件。
• Identify the electronics interface subsystem menu that you would use to calibrate, operate, and service a printer. 
• Define the role of the electronics control subsystem in its driving mechanical operation, temperature sensing, managing power and communications and execution of actions via the onboard interactive interface.
  定义电子控制子系统在驱动机械操作、温度感应、管理电源和通信以及通过机载交互界面执行动作中的作用。
• Explain the importance of motion system and its coordination with the build plate and build envelope.
  解释运动系统的重要性及其与构建板和构建包络的协调。
• Differentiate the inputs and outputs of the control and mechanical systems.
  区分控制和机械系统的输入输出。

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. For definitions of the terms, please see the Glossary
请注意以下关键词或短语，在您与讲座互动和完成活动时。有关术语的定义，请参阅术语表.

• Build Envelope  构建空间
• Control Board  控制板
• Coordinate System  坐标系
• Firmware  固件
• G-Code  G-代码
• Interactive Interface  交互式界面
• MCU  微控制器

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：

• How does each component fit the subsystems and what larger role does it have in the whole systems operation?
  每个组件如何适应子系统，它在整个系统运行中又扮演着什么更大的角色？
• What types of information does each sensor provide to the printer and how can this help you diagnose issues?
  每种传感器向打印机提供哪些类型的信息？这如何帮助您诊断问题？
• How does the difference between Mechanical Arrangement and Distribution help you to recognize how very similar looking 3D printer machines can behave quite different from each other?
  如何通过机械装置和分布之间的差异帮助你认识到外观非常相似的 3D 打印机机器可以彼此行为差异很大？

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。