twq19810302 发表于 2022-12-8 13:45:53

机械制图“6要素”，图形绘制“3步法”，详细讲解制图基本知识

制图基础制图标准、图纸幅面和格式、比例、字体、图线、尺寸标注。尺寸标注“4要素”(１) 机件的真实大小，应以图样上所注的尺寸数值为依据，与图形的大小（即所采用的比例）和绘图的准确度无关。(２) 图样中（包括技术要求和其它说明文件中）的尺寸，以毫米为单位时，不需标注计量单位的代号或名称。如果采用其它单位，则必须注明相应的计量单位的代号或名称。(３) 图样中所标注的尺寸，为该图样所示机件的最后完工尺寸，否则应另加说明。(４) 机件的每一尺寸，一般只标注一次，并应标注在反映该结构最清晰的图形上。平面图形的分析与作图方法平面图形的尺寸分析、平面图形的线段分析、平面图形的绘图方法与步骤。
PPT介绍绘图
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zjhcnsod 发表于 2022-12-8 15:23:26

若干年前的功课，今天一点都没有变

babty 发表于 2022-12-8 15:24:36

这这这

未来会出头吧 发表于 2022-12-16 16:40:46

为什么加载不出来

邢云鹤 发表于 2022-12-19 08:53:55

我也加载不出来

噩梦醒来 发表于 2022-12-19 15:21:13

进来学习一下

飞翔的企鹅y 发表于 2022-12-19 16:09:21

一张都加载不出来
页: [1]
查看完整版本: 机械制图“6要素”，图形绘制“3步法”，详细讲解制图基本知识