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把下面的文字放到一个文本格式的文件夹里，然后把它复制到CAD安装目录下就行
9 H% J4 n+ F9 R4 V;;;-----------弹簧的程序----------
4 c# M! y9 J3 b7 v(defun c:spring(/)
0 @. b2 |1 N) L2 V" d$ T (setq p1(getpoint "请指定螺旋线基点:"))
4 v9 P) }2 ~: D. \, }. p (setq r(getreal "请输入弹簧平均半径:"))
* j7 K" b7 k' w. { (setq d0(getreal "请输入弹簧丝直径:")) / p' l8 Z4 v) u; W
(setq disp(getreal "请输入弹簧节距:")) # i/ I5 g# e6 U
(setq n0(getint "请输入弹簧工作圈数:")) + O6 t- D" ~5 V
(setq n(getint "请输入每圈细化段数(16/20/24/28/32/36/40/48/52/56/60/100):"))
4 R0 a# H: }! o6 M (setq n1(* 1.25 n)) ;支撑圈细化段数 " u9 c, b8 x! y5 @1 i. r( F
(setq n1(fix n1))
' `6 p+ t! z- v/ L$ Z& T) D (setq n2(* n0 n)) ;工作圈细化段数 ' h; u8 ^& T6 W* |5 R" P4 H6 l' Y
(setq delta(/ (* 2.0 pi) n)) ;单位转角 : H& r, t+ X" B# T+ N
(setq j(/ disp n)) ;工作圈轴向位移量 $ s" j) p* X1 i) ]
(setq j0(/ d0 n)) ;支撑圈轴向位移量
: e8 Z, Y. c+ E! {$ X0 C( b* f (setq bb(caddr p1))
# _# ]/ A( G; H' r (setq ang 0) $ }3 c) ~2 C4 W3 @" p
(setq jj 0)
" ]/ j& [* n7 x' u (command "ucs" "o" p1) $ A! |5 _' D( m9 v
(setq pt1(list r 0 0)) - u: x$ {) ^7 T/ m- X
(command "3dpoly" pt1) 7 u% E) E, K1 W
(repeat n1 ;绘制下支撑圈 - M9 u% F# h) Y
(setq jj(+ jj 1)) # d$ j1 ~# M0 n: @/ {7 b& q6 A
(setq ang(+ delta ang))
% Z \+ r4 U! g" s (setq pt(list (* r (cos ang)) (* r (sin ang)) (* j0 jj)))
) h K9 R- g P+ ?' ~% n# E T( { (command pt)
( M% r& u0 }# Z! U: b ) 8 S+ o) q; s( G$ O! U `
(setq p2(list 0 0 (* j0 jj)))
0 e5 E( p; a- o0 N7 N (setq g1(* j0 jj)) ;下支撑圈高度 ' c$ F. E! a2 J- F6 Q4 K
(setq jj 0) ) M" g% P7 J0 x7 `
(repeat n2 ;绘制工作圈 ' Q0 N& p7 z; K& c
(setq jj(+ jj 1)) 9 m7 ?* O Q. e8 x* ^
(setq ang(+ delta ang))
9 D9 _( A/ d4 B% n5 |6 d; K (setq pt(list (* r (cos ang)) (* r (sin ang)) (+ g1 (* j jj)))) ) g5 g: P2 V% }0 f
(command pt) ' p6 h) X' [- u/ k$ w
) 8 O/ Z5 _/ u0 v9 c- c; {0 X
(setq p3(list 0 0 (* j jj)))
: x- Y& K+ x" R* l! r (setq g2(* j jj)) ;工作圈高度 ; d# H; I: S/ K" ~9 R% E% v a
(setq jj 0)
3 i9 d# E1 l5 c5 ^0 q (repeat n1 ;绘制上支撑圈
* A9 e$ S( W3 U- z (setq jj(+ jj 1))
5 P6 S) Y2 B. c; u6 [: a (setq ang(+ delta ang))
. |5 C) Z9 m1 C' _" b (setq pt(list (* r (cos ang)) (* r (sin ang)) (+ g1 g2 (* j0 jj))))
3 k% O' [" S6 I+ ], R7 _ (command pt) ; l" C5 m+ R# P5 R& u2 J/ A
) u" Y! b6 p6 Q0 ?
(setq g3(* j0 jj)) ;上支撑圈高度 0 D! u8 C4 k0 ^$ M @( E9 g2 r7 m
(command "")
; l1 C$ u; U8 ]' r7 z2 q8 ?( _ (setq e1(entlast)) & O4 D# I9 p& \6 j
(command "ucs" "x" "") ;拉伸弹簧 + N; c1 u* O/ p; h' Z7 U5 H2 y
(command "circle" pt1 (/ d0 2)) ' w: S. K, n* Q$ n& G: D$ ^7 z
(setq e2(entlast))
$ X: @0 D2 q. H) a (command "extrude" e2 "" "p" e1)
2 Z& [/ O6 U* W% G2 _1 }: P! d (setq e3(entlast)) , B* y5 Z% N7 S* T- W
(setq pt2(list r (/ d0 4) 0)) ;磨平 % x% ]3 f9 X- e R5 B. d
(setq py(+ g1 g2 g3 (- 0 (/ d0 4)))) " z: |& A) H( s3 x Q7 g i
(setq pt3(list (- 0 r) py 0))
2 [5 H0 ]. J( X& y, J8 i8 Y (command "slice" e3 "" "zx" pt2 pt3) ) a _$ _$ S! p4 `
(command "slice" e3 "" "zx" pt3 pt2)
% y* X, C5 w0 j4 M+ Q (command "ucs" "w")
; z) r7 s9 Q" Q+ {$ C 9 B; T( A2 A! P$ B1 S
) , L2 t, F& w' ^; b& ~2 Y
;;;---------end----------弹簧程序结束！ |
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发表于 2008-1-8 10:22
楼主