还做读书狼 发表于 2011-9-12 22:10 
" B; v7 J+ }+ Y* D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 ...
& a3 W U. y& Z0 V3 j8 g(defun C:gear ()0 e4 b0 @. X. Z* {; W- _* m5 ^
(setq numt nil, A5 e& u4 q9 o& g& V9 I T
diap nil
" R, L: u; m A) Y) q' h prsa nil+ r/ v: [' i" _0 w ^; C: K- \
pnts nil. t- W& C5 G% R' F: L
test nil% ]; _$ K, p8 i7 v
pwd nil
' V) w) J4 {1 b9 ^ )
8 |9 N, V4 y r7 {
* Z8 Z: h* [# M3 k0 n6 H (setq numt (getint "Number of teeth:<24>"))+ ]& D) I) C9 e7 m
(if (= numt nil)
" C' A' x' P/ f (setq numt 24)
& @& S6 B3 g3 d- d: E3 B' V5 r4 F )3 r. B& A7 @, G8 W: A) t
(setq diap (getreal "Modulus of gear:<0.5> "))
8 X7 N3 E( r5 E8 n' a" J: u% c (if (= diap nil)
& f0 D( N4 B' P4 m (setq diap (/ 1 0.5))
& B, O4 C0 k4 J4 }, O (setq diap (/ 1 diap))6 L4 N; K2 M, I" F+ B
)
4 ]) D) V7 v6 ?, m" h (setq prsa (getreal "Pressure angle:<20.0> "))
2 @4 L8 R9 [% S2 T4 ?% n (if (= prsa nil)
7 R+ P8 U4 V8 R( ^% `) P( B8 i (setq prsa 20.0)
: N+ b+ c) Q* [ )4 ?% Y" A% d" @& V' I. h
(setq pnts (getint "number of points on curve:<40> "))
7 }4 p4 `/ S- u' }4 P; d2 e6 F (if (= pnts nil) Q! q# x- K+ r1 _2 ^
(setq pnts 40)/ E& M7 ?" F4 Q# {2 E1 k3 r3 Y( t5 H
)3 U7 }1 E( o% S3 ?& q
; (setq pwd (getreal "Please input password:"))
* {0 K3 ]8 q, f; (if (/= pwd 8833) y/ M% i5 J5 r0 T. |: R3 S
; (setq numt 0)
3 A2 w8 T) z: A; N; ). J% \% N2 {0 D+ w4 ]) q
; (if (= pwd nil)! }! F, I9 b" |0 c& j) K7 K- @
; (setq numt 0)
9 L3 v( I% I1 {' B1 Z; )
! t+ |& ?- M& J! D1 }9 ^3 k;' i F! y7 z' L& L$ C& X
(command "osnap" "non")
& M9 N$ M, e: O2 Z3 i' }4 Z (setvar "cmdecho" 0)5 o' d, b9 p1 p3 U
(setq oldvar (getvar "pickbox"))
) p7 y: I% S0 i" o (setvar "pickbox" 0) g# T5 @/ w0 J( a) _8 S) k
(setvar "aperture" 1)$ G2 m$ F, `9 n0 `0 }
(command "osmode" "0" )
# U+ q! O9 |! [;
! O/ k1 U4 [/ F* j (setq prsa (/ (* prsa pi) 180.0))
0 O3 o! ` L& n! u (setq pitd (/ numt diap))
- J+ @- M% U4 F1 p) o (setq outd (/ (+ numt 2) diap))
' T. G3 O" b+ v W; I u' d (setq basr (/ (* pitd (cos prsa)) 2))
; U; |$ D: V& o! V8 Y+ d+ I (setq orad (/ outd 2.0))
( m; j4 t% S6 Z7 ?% d1 m8 @) o (setq z (- (expt orad 2.0) (expt basr 2.0)))
0 B/ D; t9 z2 F6 w' H( v- M$ D& A. x (setq x (sqrt z))
& A& v! k- R. _! _6 W (setq paodd (atan (/ x basr)))
* W: |: Z7 I( i" h+ c (setq incr (/ paodd pnts))' W1 E8 P, T! D, {8 h4 j
(setq p 0.0)
5 g7 s. d" S5 e6 T- ^ (setq pitr (/ pitd 2.0))8 s3 i" r' a% Z; [, ^7 x
(setq pang (/ 360. (* numt 4.0)))+ O2 ]$ E& ^! B& |3 e" C" t
(setq pang (/ (* pang pi) 180.0))
8 _5 D+ R9 n3 r% ~1 a D- X (graphscr) w& I9 k8 J) _1 P
(setq p2 (getpoint "center of gear:"))
; H$ u4 \8 h f1 b* d! Z) s (setq y2 (cadr p2))
! e* P" D: n; I. | (setq x2 (car p2))
6 c! ?4 |+ Y# } r* J (setq r0 (/ (/ (- numt 2.5) diap) 2))
; A% T$ J' ?# O, `2 G* D# W& j (setq r1 (/ 0.2 diap))
: D9 K4 Y3 ^. q3 t (setq h (sqrt (- (* (+ r1 r0) (+ r1 r0)) (* r1 r1))))
# E& N$ `$ Y7 E (setq ang0 (/ (* pi 2) numt))0 p2 ~# o' N+ G5 I' Z4 \7 t
(setq y5 (+ y2 basr))4 V0 P+ K5 H6 v# b+ q" F% Z
(setq p5 (list x2 y5)) D6 i$ I. c0 j; H4 `
(setq y55 (+ y2 r0))3 a8 }- X: ~4 t- p
(setq p55 (list x2 y55))
! w, v, m2 e/ d& n (setq p88 (list (+ x2 2) (+ y5 2)))& l8 ^' v( l5 `
(setq a3 (/ (* pi 5) 4))
M4 _% h6 z! a4 G ^- n) ^" R# C (setq a4 (/ pi 4))" l b1 g) I2 K
(setq pz3 (polar p2 a3 (* orad 1.5)))
% P8 s V$ R% |% _' G' u, c' E3 v+ I# ?! t (setq pz4 (polar p2 a4 (* orad 1.5)))
- U8 Y% M" z, _/ q( P- K' ]6 q (command "zoom" "w" pz3 pz4)
" o2 G; k2 b4 i- ^1 K;6 k* Q$ F- u3 r8 j
(setq clay (getvar "CLAYER"))
8 X' ^; P! U* B S7 r3 l a$ H (setq sblip (getvar "BLIPMODE"))* \8 Z8 c! W& U( H& D+ J
(setq ts (tblsearch "LAYER" "CEN"))( U% v/ o2 f) E: h2 y8 b
(if (null ts)
* `) z% r' i8 n. R/ }+ F* } (progn
s! z- ^0 b# ~$ _$ |; x& _ (prompt "\nCreating new layer - CEN. ")
2 d* _& t2 `5 n$ X (setvar "BLIPMODE" 0)
) r% C) @9 a, t8 F (command "LAYER" "M" "CEN" "LT" "CENTER" "CEN" "C" "RED" "CEN" "") ! i g2 \& _1 X8 R8 J/ S2 u
)% t9 j5 M* H- |* Z+ U3 l, m* J0 E
(progn/ O1 W% U9 M# H8 u
(if (> (cdr (assoc 70 ts)) 0) (command "LAYER" "T" "CEN" "ON" "CEN" "U" "CEN" "")), d6 Y2 K; D$ }9 F" M" F7 Y
(command "LAYER" "S" "cen" "")
+ e: r; R0 Q+ V ~ )% R! |! c# f7 }+ q' E+ v7 B$ H2 e" C
)0 c1 B2 y: T& m/ k" o) {0 C
(command "circle" p2 pitr)/ V8 p+ F9 }" ~5 L2 ?
(setvar "BLIPMODE" sblip)6 o5 j" s6 B# ?2 {
(command "LAYER" "S" clay "")% T7 V" t, K, Q6 d' e. @6 I
;; P2 G' u! ?4 K" u, ]
(setq a1 (- (/ pi 2 ) 0.1))8 p) ?3 p: o2 G/ `
(setq a2 (+ (/ pi 2) 0.1))8 Y& x2 ]9 c& u" @: {' T4 @8 f: C
(setq pz1 (polar p2 a1 basr))" z6 J) h; U& L$ i; |
(setq pz2 (polar p2 a2 orad))* K* v- L7 v6 n! V
(command "zoom" "w" pz1 pz2)
1 x( Z X% _ K6 j. G. U' H6 `* d (setq s (ssadd)), X4 n0 a6 G7 Y$ r' t
(setq le (entlast)); l$ y% o& g6 Z+ x' z
(setq test 0)5 s" c8 O+ A- S
(command "pline" p5)
# @1 S. M: I- ] L (setq p (+ incr p ))
6 _' M1 I( z' y( s) i$ ]" j: [" t (while (> pnts 0)
- H4 g3 T/ M+ b$ i# g$ C+ n X; R (setq e1 (sin p))
- E" |+ K+ U) B O4 y (setq e2 (cos p))
/ w/ b1 C" V( E( G (setq e (/ e1 e2))
/ f- {% F+ X0 ~ n% l& E (setq j (- e p))* b% o1 S2 }% Q/ O9 Y
(setq x1 (* (/ (sin j) (cos p)) basr))! {3 L, O7 B3 I/ w4 t- I# H% u9 R9 w
(setq y1 (* (/ (cos j) (cos p)) basr))7 V! m5 @5 M) {7 \9 h6 A5 i, ^
(setq x3 (+ x2 x1))$ A, g- M. z) b) i5 I
(setq y3 (+ y2 y1))* R) S9 L( {6 P3 M8 ~# D
(setq p3 (list x3 y3))7 O- g" h8 g( Y F( D
(command p3)- `* i. E0 d$ C0 \$ \
(setq p (+ incr p))
* |' U# x, c( {2 p3 j (setq pnts (- pnts 1))
5 n; C& L3 _% F5 l: X5 v( k! t9 ^ (if (/= test 1)
- O0 J7 z( u* M% @9 y (progn/ B( Q3 b' ~4 ^/ H+ C2 x- `3 L
(setq hyp (sqrt (+ (expt x1 2) (expt y1 2)))) F, W6 B: V) P, O
(if (> hyp pitr)
2 L! }7 e& ] L7 ` (progn+ F0 P4 p& v( o: M# z' A8 n
(setq pint p3)
" h/ m0 p. X1 ? (setq test 1): T; r6 g7 ?2 k5 l" ~" }) |
)
/ p" R F# n! f0 C1 u )
8 J" o2 Z, E1 b2 J3 \7 O* a );endif1 ]. e, ^) j# B0 z% A7 M% Q0 x0 D
);endif9 ~+ [# V/ b I
)0 \, e3 c1 a$ T1 }
(command "")0 `* X3 k1 Z& V% |3 |$ s
(setq L2 (ssget "L"))
+ F+ l5 H, P& i5 c2 ]' Y9 Y/ E (initget "Y y N n") r" ]) o. f; l) O$ N
(setq ans (getkword "\n Finish the gear ?:<Y> ")): y& m" p4 c, L/ `" _
(if (/= ans "N")
: r; C# `4 A0 ]& i( j (progn
2 \7 d* e" K+ t' { Z1 |2 h (command "zoom" "w" pz1 pz2)3 J! |, [& K" C) j
(setq p11 (osnap pint "inter")). K- ^4 y0 k/ M5 f( d3 _
(setq ang (angle p2 p11))7 `) y9 M& n' d1 r/ g; y
(setq angi (- ang pang))8 N G& r P) \1 N% `: K
(setq p12 (polar p2 angi 1.0)); P3 {" I, K6 T |( q
;
N1 R5 W; i( ~4 D (if (< (* 0.94 numt (/ 1 diap)) (* h 2.0005))6 O9 h7 e2 H' L2 ]5 H X
(progn
. R/ Z; p2 ^. u6 c' u! E5 g (if (< numt 42)- Q& w. Q7 |9 v% b" w# k; z) {
(progn
D! q" s! ~3 \) F: R' d (setq p56 (list x2 (+ y2 r0)))1 F, e7 t5 O* I* q* }) I! a" B) O% o
(command "line" p56 p5 "")0 } Y& K" W! u1 ]
(setq L33 (entlast))
# D, ]) K8 @% {, P! f* y (command "zoom" "w" p77 p88)
; H) m: d* S1 B, R (command "mirror" L2 L33 "" p2 p12 "")6 P2 W. U& L# b+ Q+ [* U
(setq adj1 (- angi (/ pi 2)))+ E a# W) B1 R& f3 w6 @
(setq adj2 (- (/ pi 2)(* pang 4)))
; s9 h* W, f! N (setq p17 (polar p2 (+ angi adj1) r0))
6 B; N$ W. N8 [; Q# v (setq p16 (polar p2 adj2 r0))1 d( {0 `; E3 U) ^. [
(command "arc" p16 "c" p2 p17)
4 B2 Y- h) `9 S( B& ~, @6 D5 \3 n ) ;end progn1 U2 x8 @4 [9 u0 X$ m" j* D, `
(progn- B& F" u4 @$ n) |
(command "zoom" "w" p77 p88)6 o B. X+ X6 V
(command "mirror" L2 "" p2 p12 "")
* y; z7 x l% Y) ~* C! o (setq pL1 (entlast)) & B0 U+ K1 u/ r* O3 U
(setq adj1 (- angi (/ pi 2)))6 v, G, b# o, m( n. M# o& F
(setq adj2 (- (/ pi 2)(* pang 4)))
, q0 X7 D; e! K1 f (setq p17 (polar p2 (+ angi adj1) r0))
3 b* J$ j/ L' c7 A( y2 B" O; [$ w (setq p16 (polar p2 adj2 r0))" |+ s8 W. S2 X' Q: T9 }
(if (> numt 101)
$ Z/ g! J3 |2 H- n/ ~5 Q (command "arc" p17 "c" p2 p16)
& I) e q: p; q. e (command "arc" p16 "c" p2 p17))
7 d, o2 K w* u6 t% \% k (setq arc4 (entlast))$ j4 R& z: C3 L7 L
(setq p171 (polar p17 0.7854 (/ 0.4 diap)))# [$ p1 O1 X4 e) r
(setq p172 (polar p17 3.9 (/ 0.4 diap)))8 k6 U: W4 R! Q" O
(if (> numt 101)& X8 \& a$ T. r- Q: A9 G' g
(setq p18 (polar p2 (+ angi adj1 ang0) r0))
+ s8 ^8 M) v, H3 | (setq p18 (polar p2 (+ adj2 ang0) r0)))
3 \( R) C. z6 F/ p0 i* w9 F9 c (setq p181 (polar p18 2.3 (/ 0.4 diap)))/ X7 t6 C2 l9 q! m$ T! l
(setq p182 (polar p18 5.5 (/ 0.4 diap)))
* ], A! C1 R m# V& x# D (command "zoom" "w" p171 p172)1 a, l+ g9 V& I' [3 m
(if (> numt 101)' `- Z' C, h" E9 A% U+ C
(command "extend" pL1 "" p16 "") & A3 c+ R, P }; Q% j
(command "extend" pL1 "" p17 ""))
3 G/ U5 J1 y: s2 o (setq ang0 (/ (* ang0 180) pi))
8 O7 w/ j- p3 t7 ] (command "rotate" arc4 "" p2 ang0)
# H0 W( C) Q! h$ I0 G (command "zoom" "w" p181 p182)
0 ~' h7 P Z/ p$ A# ~9 A (command "extend" L2 "" p18 "")
4 S" ~8 Q& w, @2 c8 R5 Y& M (command "zoom" "w" pz1 pz2)7 D/ Z, d5 n! r# f5 ~$ H% U
(command "trim" arc4 "" p5 "")
% v" E' W9 @; V0 `' @ (command "erase" pl1 "")1 d% O* r& |2 V4 t- O* _* {
(command "mirror" L2 "" p2 p12 ""). {* n- c2 _4 U; d4 A) s+ |
) ;end progn4 E; _3 \. m9 p
) ;end if3 D/ q' l/ W2 v
) ;end progn7 U( a+ u: Q& J! H1 B) }. C) G" Y
(progn 2 w* Z, F" n/ `; o6 q: M( ?
(setq ang12 (- (/ pi 2) (angle p2 p12)))
V+ Z6 r3 X1 C; W d; j, s6 ` (setq ang57 (atan (/ r1 h))). D' D* s' b' ^: A. N, L
(setq ang58 (- ang0 (* ang12 2) (* ang57 2)))
5 [1 g4 q2 s" Y" S (setq ang577 (+ (/ pi 2) ang57))0 Y( N2 S) S$ p& y9 I
(setq ang588 (+ ang577 ang58))* f- X/ {8 \1 w+ o% s! {
(setq p57 (polar p2 ang577 (+ r1 r0)))
4 W% k! Q6 `- n1 R6 w: y (setq p577 (polar p2 ang577 r0))+ X3 I* d5 i( k% v6 y9 c2 H9 R8 |
(setq p588 (polar p2 ang588 r0)) , h9 T5 z' u% ~ e s
(setq p56 (list x2 (+ y2 h)))
0 }/ M; [: s. z+ U (command "arc" p577 "c" p57 p56)
. C' E: w, M4 _2 M1 ~ (setq arc1 (entlast))
, t9 [# w8 m; L" g7 C3 C (command "arc" p577 "c" p2 p588)
4 |$ o* z$ F4 a% X; V9 A0 x' k$ d% m (setq arc2 (entlast))
1 i3 s0 U2 G8 |. |& x( H (command "line" p56 p5 ""); q$ D+ [( h) m9 [# g J, @
(setq L33 (entlast))
) U1 V: ]/ |3 |1 L4 V' l; L (command "zoom" "w" p77 p88)
7 v& y8 ?4 c2 b$ s9 B8 Z (command "mirror" arc1 arc2 L2 L33 "" p2 p12 "")
6 n; O1 v$ F* b (command "erase" arc2 "") }9 M% o7 q% K+ g
) ;end progn 0 w0 C$ _9 R! R7 [; j
) ;end if
' x, }6 ^" c6 J% ^. w* z! i: P+ R;
1 G2 r0 O) V4 v5 C" \1 |0 E (setq beta (angle p2 p3))
2 E; m$ F1 y7 q. u! Q. J3 X (setq ang2 (- (* angi 2) beta))
, G5 L- U; m/ w* L& t$ {# p (setq p15 (polar p2 ang2 orad))1 f4 G# e/ G* ]2 r+ ? W- O, k
(command "arc" p15 "c" p2 p3)
: x1 g/ P4 D4 M (while (setq le (entnext le))
% Z4 U# D& r i$ D" v$ m (ssadd le s)% ^- b4 K. B! O
)
. n$ ]. s. f0 H. W& X$ d; M (command "array" s "" "p" p2 numt "" "")+ C5 b7 B k2 i# h- J/ e g3 }4 I4 `
(setq q1 (nth 0 p2))
2 X* e+ z" ]5 P: F (setq q2 (nth 1 p2))5 r$ Q% x" \0 b: h
(setq q5 (+ q1 pitr 2))& ?6 L0 D7 K! q
(setq q6 (- q2 pitr 2)); q/ N" g6 e7 z$ h' b2 d. K
(setq q3 (- q1 pitr 2))3 E6 H m0 y% F4 q' Z
(setq q4 (+ q2 pitr 2))
0 C. T! y9 F, x3 f5 r (setq q1 (list q5 q6))
- |# X d1 L( B) F+ Y (setq q2 (list q3 q4))' r# F* u `+ e5 i
(command "zoom" "w" q1 q2)- ~9 U: ]5 z/ x) I" j
)# i! O5 d! S; C" ]) V
)
1 M: Q! ^ d; c( E# @( h) w! e (setvar "pickbox" 5)
7 J/ I4 u) h6 C7 h2 o& A (setvar "aperture" 5)) j7 {2 l2 N6 j u2 E
(setvar "osmode" 37)( P% r; S: y; j6 I* K
5 P/ h& r! ^6 @8 U2 V5 q (princ "Finish gear ")
! U/ v+ p3 Q; p- U1 d/ ~/ d- w0 G! M, V3 J (princ numt)
R% j O( m3 C A/ r5 _ (princ "T")
3 B4 ?0 }, j8 N; W" u" v3 T! M* W (princ)
: v- T7 f, N6 w$ e0 Z! A ). A- j/ x: t# ?
& Y) @; z, i. E, R# z: r6 p |