文件名称：CAD二次开发技术在各工程领域的应用
文件大小：94KB
文件格式：DOC
更新时间：2013-07-10 09:36:40
CAD二次开发 螺纹 CAD二次开发 绘制螺纹 (defun c:luowen() (setq d(getreal “螺纹公称直径=”)) (setq r(/d 2)) (setq tt(getreal “螺距=”)) (setq l(getreal “螺纹长度=”)) (setq p0(getpoint “指定基点”)) (setq p01(list (n th 0 p0) (n th 1 p0) (-1(/tt 1.155)))) (setq p012(list (n th 0 p0) (n th 1 p0)1)) (command “layer” “m” “l1” “c” 1 “” “”) (command “layer” “m” “l2” “c” 2“” “”) (command “layer” “m” “l3” “c” 252 “” “”) (command “layer” “s” “l1” “”) (command “cylinder” p0 r 1) (command “ucs” “o” p0) (setq e0 (entlast)) (setq r0(-0 r)) (setq t0(/tt 2)) (setq pr(* (pi n))) (setq pr0(-0(*pi n))) (setq pt1(list pr r0 (+ 1 t0))) (command “ucs” “o” pt1) (command “ucs” “y” -90) (setq p1(list 0 0)) (setq p1(list tt 0))) (setq p3(list(- 0 tt 0 (*pi d))) (command “layer” “s” “13” “”) (command “line” p1 p3 “”) (setq e2(entlast)) (command “extrude” e1 “” “P” e2 “”) (setq e3(entlast)) (command “erase” e2 “”) (setq n 30) (set I 0) (setq zl(/ tt n)) (setq zj(/360 n)) (setq yd 0) (while (