还做读书狼 发表于 2011-9-12 22:10 
+ a7 \& O* \$ u! j6 ?7 s你这个意思是什么意思?整体齿形是什么东西?是渐开线吗?一般还真不画出渐开线。只画出齿顶圆齿根圆分度 ... 6 V+ g9 m) B( \+ b
(defun C:gear ()
9 C9 L) \0 J- l* N+ [ (setq numt nil
+ l2 ^, f6 d$ c, E: ^' _& | diap nil
& N9 g: q6 k4 i# \7 b prsa nil: |6 B1 B, s/ w* Q5 a
pnts nil
3 j& p; u0 d6 d( x0 L5 b test nil
: t2 Q, ^9 j" C% L pwd nil
! {9 A' }6 I! a2 v3 m' r2 I1 L )
* z5 x I; S7 V* U( |" _7 r; _ . p" p* J+ U3 q: B7 P
(setq numt (getint "Number of teeth:<24>"))- i6 o/ W3 @! j" t7 i8 w
(if (= numt nil)
, a0 e1 J8 T' I0 K$ D/ K (setq numt 24)! \6 M' @; l2 U2 H# c; |/ ^
)
% h2 u O8 i+ C7 c& [ (setq diap (getreal "Modulus of gear:<0.5> "))
% R/ C# A5 G; u+ Z! K" @ (if (= diap nil)% {2 D1 Z/ O( Y
(setq diap (/ 1 0.5))7 d: a* ]( X; M0 { `3 A6 L# [1 s
(setq diap (/ 1 diap))
) L; v+ e* B7 s% B- F0 s )
5 P1 d7 T5 T" w (setq prsa (getreal "Pressure angle:<20.0> "))
9 [6 x4 r" V% l' n2 I) m/ I (if (= prsa nil)
4 H2 r# p7 z4 j1 a; f! | (setq prsa 20.0)& z) E2 y' h2 u [
)
: t5 l: K9 w( ~- K (setq pnts (getint "number of points on curve:<40> "))
: K7 z& c6 [* B! b: g (if (= pnts nil)
3 y8 _( i+ n' z7 q9 _& _ (setq pnts 40)3 C- b0 u0 R8 Z" r& J9 Z. s
)& D# D" T1 [9 ^: b1 c2 H) B4 X& i$ ^
; (setq pwd (getreal "Please input password:"))+ G4 ~+ ]6 Q7 n2 v2 o3 e
; (if (/= pwd 8833)
9 a: Z8 s) p0 y" l& w; (setq numt 0)$ a. t! _/ p. t. D O
; )
. p) w5 j/ i3 w1 [; (if (= pwd nil)
0 Q1 w; F5 k) l6 r6 R. P' i; (setq numt 0)
% j6 h5 g5 ^4 T4 j; E; )8 G% b' N2 W G* u
;1 K9 a# o0 d+ O/ l7 V4 t$ y
(command "osnap" "non")' l" P& R+ Y' b, u5 f2 _, \
(setvar "cmdecho" 0)' D5 k9 n6 S2 }0 {
(setq oldvar (getvar "pickbox"))3 c" K, }1 S- O0 a0 {$ z" `( B Q0 w
(setvar "pickbox" 0)
3 S I2 C) x2 {" I6 |, H+ \ (setvar "aperture" 1)
6 W L" ^9 n* l& j5 ^ b (command "osmode" "0" ): o! v9 i! ]# @- D' t
; ^" X' C* K% ]0 o5 w
(setq prsa (/ (* prsa pi) 180.0))
* V+ |& b8 L$ y (setq pitd (/ numt diap))# `# J9 E1 u, U. \/ V Y( S
(setq outd (/ (+ numt 2) diap))$ U3 K) k; a& M, s2 a
(setq basr (/ (* pitd (cos prsa)) 2))
. w' K4 Q2 W; E9 p0 k, y9 Q (setq orad (/ outd 2.0)) n* K* J% W1 i1 `' g
(setq z (- (expt orad 2.0) (expt basr 2.0))); T3 S* D3 f* V/ f6 r$ f: H
(setq x (sqrt z))
' u' i5 P: S# C( `4 q0 y# T$ E (setq paodd (atan (/ x basr)))& p* z+ u5 H5 r0 L, M3 e
(setq incr (/ paodd pnts))& J+ \% {+ F0 `* b7 Y* P9 n, x
(setq p 0.0); t. T" @3 I) e( R' N
(setq pitr (/ pitd 2.0))
0 w7 ^% S' d% m7 V (setq pang (/ 360. (* numt 4.0)))- H( h+ Q4 G& Y K/ F
(setq pang (/ (* pang pi) 180.0))
+ T4 d( g- F! Y" l) Q+ B4 O (graphscr)
9 _$ v2 q7 x- ?6 g5 m- R3 ? (setq p2 (getpoint "center of gear:"))& J) S* o I! n
(setq y2 (cadr p2))
5 w7 |$ A' [* T+ d* A- n/ V: s: P (setq x2 (car p2)) |* m- V* ]! R! j/ l( v: A- u
(setq r0 (/ (/ (- numt 2.5) diap) 2))
* ^! o) D9 R. Q/ h/ L. |+ _) |3 Q6 Q (setq r1 (/ 0.2 diap))# _" Z4 v' `4 W$ ^1 A3 j! v' [* z! O
(setq h (sqrt (- (* (+ r1 r0) (+ r1 r0)) (* r1 r1))))4 Q" ~; Q- I% S
(setq ang0 (/ (* pi 2) numt))
9 a4 D! z3 ^- M% n, x (setq y5 (+ y2 basr))6 w; `/ [* l' a7 ?! N P8 e
(setq p5 (list x2 y5))
9 S* ?4 M: B- G, H) g$ k (setq y55 (+ y2 r0))
3 k+ m5 {: Y4 Q (setq p55 (list x2 y55))2 \9 q: D2 M) P' v$ }+ m
(setq p88 (list (+ x2 2) (+ y5 2)))2 _4 m1 A( {, @. i
(setq a3 (/ (* pi 5) 4)): k0 Z3 r7 e3 V1 a" g: f. _
(setq a4 (/ pi 4))
2 L' B, [* H M7 E (setq pz3 (polar p2 a3 (* orad 1.5)))6 B- K# |$ V% H- D
(setq pz4 (polar p2 a4 (* orad 1.5)))
( b- Q3 N2 a0 F9 K1 t! B (command "zoom" "w" pz3 pz4)+ d B2 |! ~2 q! u6 y$ _
;" g( G: @4 v" B) X( R' q0 s
(setq clay (getvar "CLAYER"))" V' R- q5 n+ f1 d
(setq sblip (getvar "BLIPMODE"))+ h' L. D/ C3 B+ l2 e% w5 n/ o+ s1 B
(setq ts (tblsearch "LAYER" "CEN"))' \4 U' c' l: _9 O
(if (null ts)1 P, |& }5 o4 }6 g5 X0 V
(progn4 m, ]) d2 z% C, F- D6 t
(prompt "\nCreating new layer - CEN. ") 1 F& Q: U. M- X1 w3 u' C7 ^$ ^
(setvar "BLIPMODE" 0)
' i7 D, A1 c) Q+ E. V (command "LAYER" "M" "CEN" "LT" "CENTER" "CEN" "C" "RED" "CEN" "")
' E8 |0 r5 C3 z/ L2 ?. x& J )
# V; f1 k( e! J& x- _ (progn
$ y N1 u/ w' |- ^1 c (if (> (cdr (assoc 70 ts)) 0) (command "LAYER" "T" "CEN" "ON" "CEN" "U" "CEN" ""))
5 u3 J1 A2 e, _3 U/ O3 t* o (command "LAYER" "S" "cen" "")3 q( l j8 i$ X
)0 [% F( N7 F Z* j4 |5 X3 W7 f
); a `# K0 o* g. m
(command "circle" p2 pitr): g; D- F" d4 }1 [5 U" l
(setvar "BLIPMODE" sblip)9 h n4 j! @% p
(command "LAYER" "S" clay "")
8 z# b/ h% w3 F; t9 n% F7 b;& o. ^3 g5 Z& _# h2 ^ K9 Z8 f
(setq a1 (- (/ pi 2 ) 0.1))! }9 a: R& R. O
(setq a2 (+ (/ pi 2) 0.1))3 Q- f2 ^$ |$ ~
(setq pz1 (polar p2 a1 basr))
8 ~1 q7 q$ E3 e8 J5 \1 |" n9 w (setq pz2 (polar p2 a2 orad))
# Z: B' b2 v. W+ W, C* B (command "zoom" "w" pz1 pz2)
7 K- v+ U, E- p Y0 k. g- T (setq s (ssadd))! D% H8 T+ a9 N1 E3 u
(setq le (entlast)); c* ^- t8 F7 r6 U% A
(setq test 0)% _! U# B) |! K4 g
(command "pline" p5)
5 t0 a7 C) f, ?9 H (setq p (+ incr p ))% U1 i) {3 H1 v8 t% F1 c* R
(while (> pnts 0)
{) I* {8 v: y: Y# k: u (setq e1 (sin p))9 Z1 o( \7 T* V0 P# q& a
(setq e2 (cos p))4 T2 p! I: ?' L1 q6 G6 k
(setq e (/ e1 e2))
) ~% E5 V/ X: ?) r (setq j (- e p))
+ b! x) q# X: x2 t (setq x1 (* (/ (sin j) (cos p)) basr))' K" b& ]/ G1 u
(setq y1 (* (/ (cos j) (cos p)) basr))" I$ l: |) x( K c4 a
(setq x3 (+ x2 x1))4 o* x6 A5 G4 H) T6 b
(setq y3 (+ y2 y1))
& |( s; Q7 G2 a! T. g, q h; w (setq p3 (list x3 y3))' J- c! h9 m$ I8 q( z. i
(command p3)+ p6 X x3 U ?5 J* E1 U2 m' E
(setq p (+ incr p))/ @* \/ B8 s) G9 T/ x F6 ~5 x! ?
(setq pnts (- pnts 1))
) S7 a$ v \7 G: k9 ` g2 o, s4 ~ (if (/= test 1)4 `. {/ x) A" c, i, |, k1 R
(progn' F- `1 o* P* N5 i1 z
(setq hyp (sqrt (+ (expt x1 2) (expt y1 2)))). l- v4 ]3 m2 |5 A. i% I! T
(if (> hyp pitr)- I4 ?2 v+ @2 H' r
(progn5 m3 Q3 o' K3 x$ X. @
(setq pint p3)
6 s6 I i7 q7 A# N# O (setq test 1)3 D6 T5 G$ Q7 c- Q1 \
)9 w$ p2 p7 l4 K1 n6 L
)% \+ F% W- E+ z8 M0 Z! |6 ^
);endif
/ Y7 V! x# G7 l& b/ Z );endif- N$ o& j, c+ D5 s6 q7 h
)
$ N3 G$ Z9 l p. U( x (command "")0 m5 R& j% w0 _! ^6 ^) L; _
(setq L2 (ssget "L"))
+ e: h4 V& I. b G (initget "Y y N n")0 T+ M8 u. T: _ E
(setq ans (getkword "\n Finish the gear ?:<Y> "))! u& w2 s% t' n N: G
(if (/= ans "N")4 x, G4 ~3 g( l. g) h4 u
(progn4 N* o9 _; d& H* {; n% i. G* b
(command "zoom" "w" pz1 pz2)
- y# q+ b. B* e. q4 T+ H (setq p11 (osnap pint "inter"))) {) f. P, z! L) _% f" V( l
(setq ang (angle p2 p11))
4 ^8 z) g# R. S3 m# Z! K$ ]9 |1 ~ (setq angi (- ang pang))
% g* f9 L- W3 a, y (setq p12 (polar p2 angi 1.0))& g. v9 D& ? k- y2 L
;- i0 {+ M5 O( v6 C: E0 _& J
(if (< (* 0.94 numt (/ 1 diap)) (* h 2.0005))# e/ w2 P8 S% k+ D# G! a- [
(progn
4 O( ^7 e: @0 u (if (< numt 42)0 k+ D2 J% D0 w0 Z
(progn+ k# j* E& `- Q
(setq p56 (list x2 (+ y2 r0)))* B& J& }9 k0 n" I8 Y0 h
(command "line" p56 p5 "")/ C1 |: [) Q( @) @$ _9 n
(setq L33 (entlast)): O$ y. z" K4 c. I
(command "zoom" "w" p77 p88)
1 Y2 {; K$ d; f, f4 N" g (command "mirror" L2 L33 "" p2 p12 "")
/ K* L% K) N! O! a: c (setq adj1 (- angi (/ pi 2)))' C5 o5 p! m. m0 J N1 x! Z
(setq adj2 (- (/ pi 2)(* pang 4)))7 r6 `$ n& y# [! }/ K
(setq p17 (polar p2 (+ angi adj1) r0)), p% ]" f/ w8 o/ T4 S
(setq p16 (polar p2 adj2 r0))
3 Q0 o! L% v4 F- O (command "arc" p16 "c" p2 p17)
& I- T; A* Y% R6 p: } ) ;end progn5 D) \8 u7 B7 a6 M9 `8 r
(progn
6 Q8 c/ l, O$ X4 X* j6 F" w/ W, M (command "zoom" "w" p77 p88). u6 a5 B) Q- j# r+ Z' A" W
(command "mirror" L2 "" p2 p12 "")8 w2 u) R% B# `, }0 l
(setq pL1 (entlast)) 6 k7 r8 }( A- _" I
(setq adj1 (- angi (/ pi 2)))4 J- Z3 ^) W- w
(setq adj2 (- (/ pi 2)(* pang 4)))( E) I/ S! v' O: E3 Y- `
(setq p17 (polar p2 (+ angi adj1) r0))
: o# n( {( e$ C (setq p16 (polar p2 adj2 r0))$ Q8 Q* {: A, }
(if (> numt 101)) R& U4 I$ A1 r b4 R* z0 f
(command "arc" p17 "c" p2 p16)
7 [5 x0 H" |8 w. p4 b" i5 E0 \ (command "arc" p16 "c" p2 p17))9 Y7 a2 M& P& {6 h% k
(setq arc4 (entlast))0 v9 {+ t. \5 B4 O9 j6 `' o
(setq p171 (polar p17 0.7854 (/ 0.4 diap)))4 M$ c _! h& p
(setq p172 (polar p17 3.9 (/ 0.4 diap)))
5 @/ Q' s9 w% C( V (if (> numt 101)
4 j) t9 \. i4 D (setq p18 (polar p2 (+ angi adj1 ang0) r0))
6 I0 }! r3 j. y. i (setq p18 (polar p2 (+ adj2 ang0) r0)))
% x2 J" C ?5 \- M (setq p181 (polar p18 2.3 (/ 0.4 diap)))+ Z# i' ^- ]: @
(setq p182 (polar p18 5.5 (/ 0.4 diap)))( a8 C" Y/ A5 J+ \9 d, r
(command "zoom" "w" p171 p172)0 N3 U# ^% A# K! \+ F, B# \# n0 W9 b
(if (> numt 101)* w9 {3 x+ G: {: c
(command "extend" pL1 "" p16 "") % a, W3 ]0 w5 C# O$ g3 A
(command "extend" pL1 "" p17 ""))5 }% D4 L* N* ^
(setq ang0 (/ (* ang0 180) pi))3 }# ~3 Z3 @2 y2 D7 W* M
(command "rotate" arc4 "" p2 ang0)) |" i2 L. \2 V. W w; n
(command "zoom" "w" p181 p182)8 p0 e$ z) g& b& m5 J/ \7 D* x/ Q
(command "extend" L2 "" p18 "")
7 m; C- w: i! F3 ^' T/ a( S6 k4 y (command "zoom" "w" pz1 pz2)
$ q; H! |- `8 ], c+ g (command "trim" arc4 "" p5 "")
* Z8 U" w( a, Y; s (command "erase" pl1 ""). r6 V! M, Y) L0 E
(command "mirror" L2 "" p2 p12 "")+ h: P$ e; |6 s7 `- J9 A- E- P, X
) ;end progn5 a! i. [, v2 y1 G T" A
) ;end if
' K0 a1 f+ r6 c6 o p ) ;end progn* J% N6 ~4 A: s# E0 V }1 y6 Z
(progn
8 t e$ Q4 b. A$ d7 o) q (setq ang12 (- (/ pi 2) (angle p2 p12)))
% s# c J) u$ D2 @ (setq ang57 (atan (/ r1 h)))
1 D8 K0 S- f7 L7 x# Y" u2 ` (setq ang58 (- ang0 (* ang12 2) (* ang57 2)))
( E# Y5 G/ E+ M* u( V# w* G (setq ang577 (+ (/ pi 2) ang57))
) K/ W6 r2 |- _; h' |: @. y2 P (setq ang588 (+ ang577 ang58)): Y8 ?4 b/ ~& E* {
(setq p57 (polar p2 ang577 (+ r1 r0)))
! D6 u- c9 _3 i5 D5 k2 r (setq p577 (polar p2 ang577 r0))
; @( Y& I- p4 O. K (setq p588 (polar p2 ang588 r0)) 1 U5 @; n' W1 o8 W% h' D
(setq p56 (list x2 (+ y2 h)))
) P- W0 B6 R) u+ }6 b (command "arc" p577 "c" p57 p56)4 n! H E, E3 q6 L) s b
(setq arc1 (entlast))3 O. g) k: m) b n: [2 L
(command "arc" p577 "c" p2 p588)
/ y3 T8 d/ L+ `; U6 y (setq arc2 (entlast))
- J8 D8 K1 E3 Y# `% I2 y, V' }5 g (command "line" p56 p5 "")
4 i& J) t2 U3 t. s (setq L33 (entlast))
. U$ x8 P2 v: N8 H1 G& c6 `2 J/ ^ (command "zoom" "w" p77 p88)8 Z9 i, n, w7 L1 G" _1 E/ F
(command "mirror" arc1 arc2 L2 L33 "" p2 p12 "")- F* O3 q- u; i
(command "erase" arc2 "")
l$ o' {! F* J# M8 y4 G+ ?: @ w ) ;end progn
& U. ]; b5 i6 d9 y. R# d8 U ) ;end if" s5 S% b9 I4 a, {" \
; & H; w5 v1 ~( o# ?8 a
(setq beta (angle p2 p3))0 q7 [& q4 P/ u# f9 K! f# }7 ~! o
(setq ang2 (- (* angi 2) beta))% _$ A2 Q# D4 x* ^
(setq p15 (polar p2 ang2 orad))5 |: z) W( |; Z1 U' c
(command "arc" p15 "c" p2 p3)* Z: F6 O8 D1 u+ F
(while (setq le (entnext le))$ W2 M- {# J3 W3 \+ Q9 S4 m
(ssadd le s)
: U, g# _8 V5 ? )8 }7 g" j- }' f' B0 |$ c6 @
(command "array" s "" "p" p2 numt "" "")1 `7 `% ~" B0 i4 d6 |
(setq q1 (nth 0 p2))' Z9 \* R( R6 z# q* A3 l
(setq q2 (nth 1 p2))
U; K# H! m$ K# k: h+ F/ s (setq q5 (+ q1 pitr 2))
2 C! K! e" p; f" H, d- t* f (setq q6 (- q2 pitr 2))
6 @ \6 l {8 ?& c7 ]" t1 Z (setq q3 (- q1 pitr 2))
* I' B# o3 e- u4 Z (setq q4 (+ q2 pitr 2))
3 i* g7 x. H. m0 H3 j (setq q1 (list q5 q6))3 f e3 r; e6 U- a: o& y" ]9 F' @
(setq q2 (list q3 q4))
9 h- t2 E3 f7 e: r% }6 D$ v (command "zoom" "w" q1 q2)2 L1 y0 V o9 U; d
)# A: O+ e3 t9 X5 e9 }2 t
)
0 w3 ~! u. m4 U+ }1 d+ { (setvar "pickbox" 5)
; H! ?% V1 n) b0 S8 r8 [ (setvar "aperture" 5)& h. Y7 s6 M% i
(setvar "osmode" 37)
* K3 W2 D u1 W( |# C' g" D; v % l( ^+ A) U$ M" b2 k
(princ "Finish gear ")
. ^& k# K3 H& `: b9 m8 b) \2 x2 Z, C (princ numt)
1 ^/ t( K) _; v: x (princ "T")
# w# j$ D4 l) p- t7 `3 b" _+ S (princ)
; R& o! j( h. B! J )* g* k, g3 j: {/ O$ u
3 D% [& X& F! r& P5 Z& j: W |