埃德蒙顿华人社区-Edmonton China

 找回密码
 注册
查看: 2909|回复: 3

[经验感悟] AutoCAD 实战讲座

[复制链接]
鲜花(0) 鸡蛋(0)
发表于 2007-11-24 13:32 | 显示全部楼层 |阅读模式
老杨团队,追求完美;客户至上,服务到位!
AutoCAD 实战讲座: x6 c5 z0 R! J, K9 e! m7 m& v
http://www.newmaple.com/forumdisplay.php?fid=28
' N2 M4 }4 X: @( R
4 |/ k( o( c  P" R# m( o) zwww.newmaple.com/video/autocad0006
8 o: O; D' k7 |! E; H$ B  |% W1 r; p" o8 e6 H% W& f" x
1. Title block brief introduction" Y( e# R$ G( m# z: t

: [5 X, W, }7 Y3 c2. Text height: A, ~' `$ Y8 T, n' B
# o1 }5 \% U8 F7 I- e. G3 p: W% d
3. Viewport
, t2 r" J! a7 z
# ~2 N1 b# g. o2 _9 ^( H9 U6 {4. Dimensions style brief introduction3 S1 f, x- T9 X8 Y# W8 Z0 s
•        Tolerance in Mechanical / Autocad0 ~1 [6 \9 d3 p4 @5 |
# ^5 U4 q6 @+ ?  v1 N
special symbols/ J: v3 z7 m& ~& w0 F$ }' T7 C
%%D degree sign
! d1 W4 N  e! G%%P plus and minus sign
9 ^% m* V( Q3 A' {! Y0 i%%C diameter symbol
鲜花(64) 鸡蛋(0)
发表于 2007-11-24 18:33 | 显示全部楼层
鲜花(0) 鸡蛋(0)
发表于 2007-11-24 19:27 | 显示全部楼层
Very practical!
鲜花(0) 鸡蛋(0)
 楼主| 发表于 2007-12-3 12:38 | 显示全部楼层
老杨团队 追求完美
[V] AutoCAD 实战讲座第七讲! {$ k$ g# t' {5 V' d5 e
AutoCAD 实战讲座第七讲" @! v2 I/ ]/ E1 p9 [2 E
New Maple AutoCAD (7)
% m( V9 q5 I3 ]. L; a& c4 c( ywww.newmaple.com/video/autocad0007' v" K4 T/ F4 n3 }2 P
* h% L2 C7 Z" T7 w
A real sample to review lecture 6) v- c- w9 s' E3 ?/ E
! S! h1 `. q" G' z
Introduction Roughness
7 x) R" k7 }$ K' E9 c7 v4 Y* GQuick check hole size and position/ k5 |1 {. c( c6 u
Introduction O-ring groove+ f3 ~. D( F' |3 J4 g

$ G& _9 R: ]! CSurface roughness
/ [5 H+ s1 e& F' H•        Imperial Unit: micro-inch 10-6 inch
8 S0 K. s! n& I7 ]( m•        Metric Unit: micrometer 10-6 m4 M* k$ v6 @& f# ^8 N2 C
•        Sample 250 micro-inch = 6.3 micrometer
: U7 a( |4 }8 U; A1 v(250X25.4X10-3)
  f5 s- V6 ~" Z3 L6 ]; n' e- w0 }0 N•        250 micro-inch – forging surface
0 |3 B( k+ b' g3 u5 R; I! I6 _•        125 rough machine, 32 fine machine
4 F( E$ x, b& i/ S3 v! M$ l0 z0 H
Inch size O-ring
2 W- I  U& u, L•        O-ring number 2323 I2 g, {; ?0 Y1 {% [
•        nominal size 2.75”x3”x1/8”
; M- h, m3 o2 r3 H( K•        Actual size 2.734”x3.012”x0.139”4 @4 z) B+ S( Q, M" v# R. Z
•        Static surface seal groove depth 0.101~0.107 about 25% squeeze
1 D; d$ N5 W/ [. j& h4 R& {•        One of OD or ID is close standard size3 h: t: b" F7 r9 ^  y! z' S

) l! W. {) B- A. P2 n9 j4 Phttp://www.newmaple.com/forumdisplay.php?fid=28
您需要登录后才可以回帖 登录 | 注册

本版积分规则

联系我们|小黑屋|手机版|Archiver|埃德蒙顿中文网

GMT-7, 2026-9-27 17:17 , Processed in 0.888656 second(s), 13 queries , Gzip On, APC On.

Powered by Discuz! X3.4

Copyright © 2001-2021, Tencent Cloud.

快速回复 返回顶部 返回列表