← Back to course 返回课程页
Renoox Academy
MODULE 05 · 模块五
Technical Drawing with LibreCADLibreCAD 技术制图
Turn sketches into precise, professional 2D drawings. LibreCAD is free and open-source, so you can practise at home with zero software cost — and the CAD skills you build transfer directly to any professional tool.
把草图变成精准专业的二维图纸。LibreCAD 免费且开源，在家练习零软件成本——所掌握的 CAD 技能可直接转移到任何专业软件。
Module Learning Objectives 模块学习目标
- Set up LibreCAD correctly: units, layers, and a reusable drawing template. 正确设置 LibreCAD：单位、图层与可重复使用的图纸模板。
- Draw with millimetre precision using coordinates, snaps, and modify tools. 运用坐标、捕捉与修改工具，以毫米级精度绘图。
- Produce a complete floor plan from a measured site sketch. 依据现场测量草图绘制完整平面图。
- Manage layers, blocks, and build a personal furniture library. 管理图层与图块，建立个人家具图库。
- Dimension, annotate, and print professional drawings to scale. 为图纸标注尺寸与文字，并以正确比例出图。
Lesson Breakdown 课程大纲
LESSON 5.1
CAD Foundations & LibreCAD SetupCAD 基础与软件设置
Goal: Understand why designers use CAD, and set up a correct workspace. 目标：理解设计师为何使用 CAD，并建立正确的工作环境。
Key Topics 主要内容
- From hand sketch to CAD: why precision matters 从手绘到 CAD：精准的重要性
- Installing LibreCAD — free & open-source 安装 LibreCAD——免费开源软件
- Interface, command line & drawing units (mm) 界面、命令行与绘图单位（毫米）
- Zoom, pan & selection basics 缩放、平移与选取基础
Activities 课堂活动
- Install LibreCAD & draw your first shapes 安装软件并绘制第一批图形
- Set up a personal drawing template 建立个人图纸模板
Outcome 成果: Students have a working CAD setup with correct units and template. 学员完成软件设置，单位与模板正确可用。
LESSON 5.2
Precision Drawing Tools精准绘图工具
Goal: Draw exactly — to the millimetre — using coordinates and snaps. 目标：运用坐标与捕捉，实现毫米级精准绘图。
Key Topics 主要内容
- Line, polyline, rectangle, circle & arc 直线、多段线、矩形、圆与弧
- Absolute & relative coordinate input 绝对坐标与相对坐标输入
- Snaps: endpoint, midpoint, intersection, grid 捕捉：端点、中点、交点与网格
- Modify tools: trim, extend, offset, mirror, fillet 修改工具：修剪、延伸、偏移、镜像、圆角
Activities 课堂活动
- Coordinate drawing drills from given dimensions 依给定尺寸进行坐标绘图练习
- Reproduce a dimensioned shape exactly 精确复制一个标注图形
Outcome 成果: Students draw accurately to the millimetre using keyboard input. 学员能以键盘输入实现毫米级精准绘图。
LESSON 5.3
Drawing the Floor Plan绘制平面图
Goal: Draw a real unit's walls, doors, and windows to standard conventions. 目标：按制图规范绘制真实单位的墙体、门与窗。
Key Topics 主要内容
- Wall thicknesses & the offset method 墙体厚度与偏移画法
- Drawing doors, windows & openings 门、窗与开口的画法
- Working from a measured site sketch 依据现场测量草图绘图
- Standard line types for plans 平面图的标准线型
Activities 课堂活动
- Draw the wall plan of a 2-bedroom unit 绘制两房单位的墙体平面
- Add all doors & windows to the plan 为平面加入所有门窗
Outcome 成果: Students produce an accurate wall plan of a real unit. 学员能完成真实单位的准确墙体平面图。
LESSON 5.4
Layers, Blocks & Furniture Library图层、图块与家具图库
Goal: Organise drawings professionally and stop redrawing the same furniture. 目标：专业管理图纸，不再重复绘制相同家具。
Key Topics 主要内容
- Layer structure: walls, furniture, dimensions, text 图层规划：墙体、家具、标注、文字
- Creating & inserting blocks 创建与插入图块
- Building your reusable furniture library 建立可重复使用的家具图库
- Hatching floors & wall fills 地面与墙体的填充图案
Activities 课堂活动
- Build a 6-piece furniture block library 建立含 6 件家具的图块库
- Furnish the unit plan using your blocks 用自建图块布置单位平面
Outcome 成果: Students maintain a layered drawing plus a reusable block library. 学员能维护分层图纸并拥有可重用图块库。
LESSON 5.5
Dimensions, Text & Printing to Scale标注、文字与按比例出图
Goal: Annotate drawings to standard and print them at true scale. 目标：按规范标注图纸，并以真实比例出图。
Key Topics 主要内容
- Dimension styles & placement rules 标注样式与摆放规范
- Text, room labels & areas 文字、空间名称与面积
- Title block & drawing frame 图框与标题栏
- Printing to PDF at 1:50 / 1:100 以 1:50 / 1:100 出 PDF 图
Activities 课堂活动
- Fully dimension the unit plan 为单位平面完成完整标注
- Print to PDF & verify the scale by measuring 出 PDF 图并量测验证比例
Outcome 成果: Students deliver a dimensioned drawing printed at correct scale. 学员能交付比例正确的完整标注图纸。
LESSON 5.6
Complete CAD Plan — Module Project完整 CAD 平面图 — 模块项目
Goal: Deliver a professional CAD floor plan package, end to end. 目标：端到端交付一套专业 CAD 平面图。
Key Topics 主要内容
- Drawing checklist & quality control 图纸检查清单与质量控制
- File organisation & naming conventions 文件管理与命名规范
- From CAD plan to client discussion 从 CAD 图纸到客户沟通
Activities 课堂活动
- Module project: redraw your Module 2 furniture plan in LibreCAD, fully dimensioned 模块项目：以 LibreCAD 重绘模块二家具平面并完整标注
- Peer QC swap: check each other's drawings 同侪互检图纸质量
Outcome 成果: A professional CAD floor plan — the Module 5 portfolio piece. 一份专业 CAD 平面图 — 模块五作品集作业。
Module Assessment 模块考核
40% Exercises (Lessons 5.1–5.5) · 50% Module Project (Lesson 5.6) · 10% Participation. Students must achieve 60% overall to progress to Module 6: Design & Production with KD20.
40% 课堂练习（第 5.1–5.5 课）· 50% 模块项目（第 5.6 课）· 10% 课堂参与。总分达 60% 方可进入模块六：KD20 云端设计与生产。