还做读书狼 发表于 2011-9-12 22:10 
* `2 R0 [6 B I- r3 m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 ... ' A9 S0 e1 h) p8 g
(defun C:gear ()
& y6 q( D1 a7 c (setq numt nil T+ [ w% e: g- a6 b0 n
diap nil
2 \- M* P' @4 r2 g prsa nil4 ?% d% c! n- K1 u
pnts nil3 R6 p& Y4 Z4 h. X3 ^
test nil$ ^- ]7 P4 D9 b- Y5 S0 ~
pwd nil2 U8 ~9 X4 s8 ` ?
)
3 q: t) e9 a6 @9 G" A2 u; ?
7 V$ k0 ~8 t7 u' \* d8 _7 q (setq numt (getint "Number of teeth:<24>"))# p) m( M; X+ X: X" n
(if (= numt nil)! _ {; c" s# U+ Z
(setq numt 24): \1 r6 S1 W5 Q4 }, l! A( a
)
4 P4 @& ^3 o( d: r) J (setq diap (getreal "Modulus of gear:<0.5> "))7 J3 P. |* E8 U4 D/ k
(if (= diap nil)- D# T4 h; ~, I7 |7 u0 l8 ?. `+ _! L
(setq diap (/ 1 0.5))6 o0 m4 h5 ]0 B8 C2 P* Z7 [4 Y
(setq diap (/ 1 diap))4 ^# n# S7 H, y
)
$ c$ L$ H8 } D, i/ A (setq prsa (getreal "Pressure angle:<20.0> "))2 l3 S6 H' X' Y+ b2 N, Q3 b5 ~
(if (= prsa nil)+ D7 S1 \+ J. I# J) y
(setq prsa 20.0)
4 U% h3 F: s* [ )
$ F% d" w: C# E (setq pnts (getint "number of points on curve:<40> "))6 f% ] A9 j; M3 x
(if (= pnts nil)
- y6 X# @: a% J. D' `2 X% T (setq pnts 40)
9 X; m- ~7 A/ [3 L9 d- B- P/ s )- k5 d; [1 l' L0 r! A
; (setq pwd (getreal "Please input password:"))
) ^: J- d2 l- Y4 P; (if (/= pwd 8833)( s# f$ s. V, ~" |) x$ m
; (setq numt 0)
2 {+ P. i: Q. ?0 K! z; )5 @) A0 [/ K9 E2 M% |
; (if (= pwd nil)
4 m. ]$ `8 Z4 S- q; (setq numt 0)
8 y- l( Y, n# E; )
9 v9 t3 D5 M& r. j; n6 E' I- w! Q D
(command "osnap" "non")2 X7 o7 Q$ _- i& x7 Q( m
(setvar "cmdecho" 0)
+ g( n3 e4 `' j* k* G3 Z- N (setq oldvar (getvar "pickbox"))
; T' Z. G4 q7 W/ C1 J8 I0 ~ (setvar "pickbox" 0)0 E! g! g- e9 M, X8 I9 W! D! R) D
(setvar "aperture" 1)9 b9 v/ u& I2 c0 K6 f, a$ |
(command "osmode" "0" )
2 [0 d& E. U, H' Q M) S" x2 M;
& A9 b9 e$ t6 Q2 h' H: \! Y: W (setq prsa (/ (* prsa pi) 180.0))
7 t' n, a4 b- @5 _: C$ v (setq pitd (/ numt diap))+ X5 ?- u4 S7 |* ?) L/ b
(setq outd (/ (+ numt 2) diap))
. K& i* m* m, P# c% k- p( J (setq basr (/ (* pitd (cos prsa)) 2)): C$ p0 h/ i3 n
(setq orad (/ outd 2.0))
, `0 Q& c- d/ X0 b (setq z (- (expt orad 2.0) (expt basr 2.0)))
6 m* S% Y8 b. c# g. H (setq x (sqrt z))
: h! z1 I6 {$ B9 h7 | (setq paodd (atan (/ x basr)))7 ^6 p) q0 w! Z
(setq incr (/ paodd pnts))5 C2 b% d& C+ Z8 M
(setq p 0.0)
- D( X1 Z" i' C# i4 Z( D5 l6 _ (setq pitr (/ pitd 2.0))$ ?5 x- J: ?. n! g }: n+ ?
(setq pang (/ 360. (* numt 4.0)))
* L4 Y/ U' N& [' Z5 |* } (setq pang (/ (* pang pi) 180.0))
: H) @4 ?+ |3 q( g (graphscr)' s) F l0 {# U* g
(setq p2 (getpoint "center of gear:"))
5 g: J: u. `$ D$ N (setq y2 (cadr p2))/ @+ C) M ?) A- ]0 E( U% ]( ~) a
(setq x2 (car p2))8 N& P3 c) F* W$ g7 h! t% @" _/ m
(setq r0 (/ (/ (- numt 2.5) diap) 2))
3 C& ~. W1 R5 {1 L) Q& d+ { (setq r1 (/ 0.2 diap))
3 p! n# b" n x9 m# @' r! w (setq h (sqrt (- (* (+ r1 r0) (+ r1 r0)) (* r1 r1))))& Y. K0 q0 K1 ?# `
(setq ang0 (/ (* pi 2) numt))
% N1 ?5 k& ~ U3 }7 S7 Y (setq y5 (+ y2 basr))
5 A G# ] \1 P (setq p5 (list x2 y5))2 S$ L6 T" J5 q
(setq y55 (+ y2 r0))/ i7 I5 A. \) B) f! k6 t/ I
(setq p55 (list x2 y55))
% r. K8 H% Z ^) h2 u9 u (setq p88 (list (+ x2 2) (+ y5 2)))
% N- b# x$ q; \- _1 S9 U (setq a3 (/ (* pi 5) 4))
; ~9 ~1 X" e/ W1 V1 T ] (setq a4 (/ pi 4))0 i$ o+ U* M( i z5 l. g
(setq pz3 (polar p2 a3 (* orad 1.5))): z0 V# l9 @" l" G8 B
(setq pz4 (polar p2 a4 (* orad 1.5))), a8 d) i/ ^/ `1 v9 e# p& \ ?6 p
(command "zoom" "w" pz3 pz4)9 ^) I5 H1 ^3 i, @& e1 |( H4 x: f8 z
;
8 r, r y' F5 q. A5 H (setq clay (getvar "CLAYER"))0 z X$ D% H V9 V$ w5 J L6 u9 r
(setq sblip (getvar "BLIPMODE"))
" D w- C- `- d (setq ts (tblsearch "LAYER" "CEN"))) Y* ?0 F- s$ [3 D* h: Z
(if (null ts)/ D4 C% M( O* u0 r/ V
(progn2 [# b! u7 @6 v% {( c, O
(prompt "\nCreating new layer - CEN. ") 7 q/ Y1 P0 A; e- \4 T3 J) c9 Q
(setvar "BLIPMODE" 0)8 O/ A, _4 `7 n! a4 X/ B. b6 u3 |
(command "LAYER" "M" "CEN" "LT" "CENTER" "CEN" "C" "RED" "CEN" "") - k! `3 a: Q6 |1 P
)
" z0 m" w0 e, L6 f7 f; J (progn
9 U. b+ x4 e( [* i+ @ (if (> (cdr (assoc 70 ts)) 0) (command "LAYER" "T" "CEN" "ON" "CEN" "U" "CEN" ""))
$ P! E: B- I; J- d. j b (command "LAYER" "S" "cen" ""); M# p3 q! C1 h9 M' G- k1 @
)7 j8 C# p" a) ]' s
) B2 X1 C6 q L& E' Y1 P
(command "circle" p2 pitr)
1 e) h& P7 D# M) y6 o (setvar "BLIPMODE" sblip)
& N& u' O5 s0 \, Y: P (command "LAYER" "S" clay ""), H( i) i" [; H4 ]& e% M* z3 n H
;$ v! o" n4 ~8 l9 u% I
(setq a1 (- (/ pi 2 ) 0.1))
9 x/ j) S5 ^$ T9 W+ h, y$ i/ m* b9 E (setq a2 (+ (/ pi 2) 0.1))1 d$ m7 b+ e! b
(setq pz1 (polar p2 a1 basr))' t4 k A# Y5 S$ R) U* u
(setq pz2 (polar p2 a2 orad))
6 t/ u% {0 q# N% N (command "zoom" "w" pz1 pz2)0 v$ u, l0 N4 F: v( k. x3 `3 q
(setq s (ssadd))- V6 _; |" J8 U2 }# U/ B
(setq le (entlast))
" i) B2 y/ n, C- Y3 S1 t, o* J5 I. D (setq test 0)
- r0 Z! R+ J$ M4 Z) M (command "pline" p5)
/ m' d# q7 h" ^% ?. ` (setq p (+ incr p ))# E F" \- q: A3 G
(while (> pnts 0)
- A% i( i7 P0 w( v( p' O- d (setq e1 (sin p))/ f; B3 j5 @7 H
(setq e2 (cos p))3 i5 }+ K& R: C9 h, y) P, L
(setq e (/ e1 e2))
) I: d6 e! }0 x: \/ c; K2 B (setq j (- e p))
2 @$ w4 T; c1 Y& ~7 b/ |6 ^$ x (setq x1 (* (/ (sin j) (cos p)) basr))% y9 e0 G' n7 M* j
(setq y1 (* (/ (cos j) (cos p)) basr)); f* N d& O& K6 D9 |0 W
(setq x3 (+ x2 x1))$ J. v0 s7 {9 M. f9 I
(setq y3 (+ y2 y1))( g$ C% m% F1 l( c( F
(setq p3 (list x3 y3))
: _3 ~4 s F& y3 v3 o# d (command p3)4 }4 H* ^: L- E: b; P9 d
(setq p (+ incr p))
" G3 W' \: p& G( F: m3 y (setq pnts (- pnts 1))- G# s' y& Q% }" V( w) r/ m
(if (/= test 1)
5 h0 G- _9 y1 ~& n (progn& j! D8 L ^. h2 Y" J
(setq hyp (sqrt (+ (expt x1 2) (expt y1 2)))), C1 Z: ]" ~, v ]
(if (> hyp pitr)! _5 k1 Y2 ~1 ^/ @, u
(progn& L' F1 W7 D3 O* g; i/ @8 r9 t8 p
(setq pint p3). g3 }! _8 c+ w1 K- ^% W4 Q
(setq test 1), ~8 r8 `, n+ x ~8 ^- x: G3 ^* {* ?
)
- [9 T# I+ U) R' C* H/ } )
7 V8 n; g! F" j4 R- H, b# c; v );endif
0 ~ p6 z+ E+ C" Y# O );endif
0 U- o2 z$ O6 W' h, H" e7 { )
( t1 C( E& ]. J! P( m E (command "")
& P% A8 M: `9 S8 B7 N g" o (setq L2 (ssget "L"))+ `2 D* c/ V4 n1 ~( C; }# ]
(initget "Y y N n")
# ^3 w1 I' p+ m (setq ans (getkword "\n Finish the gear ?:<Y> "))
# H2 F ~1 ~ I9 G* v (if (/= ans "N")' b& o; J! X/ @$ k
(progn
" {5 e0 J. K# s" r (command "zoom" "w" pz1 pz2)1 P* B& c$ S# n' w0 M5 s
(setq p11 (osnap pint "inter"))
+ `: y& S/ D& \* _" b9 X (setq ang (angle p2 p11))# `5 F5 [3 I" F6 ]
(setq angi (- ang pang))
! A3 t/ ^# H. A9 W1 x2 A (setq p12 (polar p2 angi 1.0))9 e ^, I5 u% {3 F% B
;8 X0 B: i( J& d$ v
(if (< (* 0.94 numt (/ 1 diap)) (* h 2.0005))
" W1 n0 } O. g: K (progn2 f( o2 K) p$ y% b
(if (< numt 42)0 h4 q; c0 n$ t/ u- F: x
(progn; T; G" d) T8 n: [0 C! K/ y
(setq p56 (list x2 (+ y2 r0)))
6 D! S5 j( X" I9 L! P5 Y6 \ (command "line" p56 p5 "")
0 I% b$ E/ s: m. k- J( I# v (setq L33 (entlast)) }1 ~5 |8 u- j" }) G
(command "zoom" "w" p77 p88)
" U! J6 E5 q2 Q4 \3 H9 l- g (command "mirror" L2 L33 "" p2 p12 "")+ r. u' S8 ~9 X0 _3 H9 a3 U2 w1 G
(setq adj1 (- angi (/ pi 2)))
/ T- G8 w+ Z* l- k3 U" c7 X) e (setq adj2 (- (/ pi 2)(* pang 4)))
+ T( w1 ?$ _6 s4 p8 `9 P! S (setq p17 (polar p2 (+ angi adj1) r0))
# r, ^( n% h! s+ V7 l- v (setq p16 (polar p2 adj2 r0))) W; J4 d4 L& B0 F& q8 q
(command "arc" p16 "c" p2 p17)
/ _/ V8 e7 v. N ) ;end progn! ] \$ M2 s, c2 ?* t- x
(progn W' `$ A2 N: ^$ l* W( z% j; i- I
(command "zoom" "w" p77 p88)% Q' R4 F3 P. S+ k: N% Y ^
(command "mirror" L2 "" p2 p12 "")
! a3 c; G! y' X2 |8 N3 r& g9 _8 T: y* W (setq pL1 (entlast)) ; @6 x% j" h' }" l% }4 G
(setq adj1 (- angi (/ pi 2)))
# O( B8 Q8 Y1 R. ^ (setq adj2 (- (/ pi 2)(* pang 4))). \$ [. S" N& z5 i6 S5 {, z! J: q
(setq p17 (polar p2 (+ angi adj1) r0))( o: w3 J6 b+ X W7 X
(setq p16 (polar p2 adj2 r0))
. o" {, ]% k. B" @: G (if (> numt 101)9 B9 P, | ~2 D$ {
(command "arc" p17 "c" p2 p16)
3 J7 M6 c y/ p( f; ^2 Z (command "arc" p16 "c" p2 p17))
s& w9 f4 k# y (setq arc4 (entlast))
: H' K: c: ^7 w3 I# J$ w (setq p171 (polar p17 0.7854 (/ 0.4 diap))): c( \# {* m: W3 d, }. E' `* ?
(setq p172 (polar p17 3.9 (/ 0.4 diap)))2 }, {1 f& X( `: x, }, h
(if (> numt 101)
9 U. C+ `/ q" U6 E6 l% V (setq p18 (polar p2 (+ angi adj1 ang0) r0))9 j3 H1 m5 a7 l; U
(setq p18 (polar p2 (+ adj2 ang0) r0)))
- A8 t; e Q3 t, L$ B (setq p181 (polar p18 2.3 (/ 0.4 diap)))
( r/ [ ?8 e' u$ ?$ A: \ K3 Y6 _ (setq p182 (polar p18 5.5 (/ 0.4 diap)))
& |' L0 S2 K3 P3 z3 b! j (command "zoom" "w" p171 p172)8 Z8 Y3 o' C' k' V; v
(if (> numt 101)1 J" F+ I8 R4 u o
(command "extend" pL1 "" p16 "") 5 D) @$ R8 G8 ]& C( v
(command "extend" pL1 "" p17 "")) ^. d9 J! |$ f9 G! L) \, c, B
(setq ang0 (/ (* ang0 180) pi)): O" X9 l+ K- K+ K
(command "rotate" arc4 "" p2 ang0)
2 S& T) D4 [( |# I; V$ ~& E: s (command "zoom" "w" p181 p182)
, F6 x7 D6 F+ r+ }6 i# p (command "extend" L2 "" p18 "")
, P9 b3 y$ Q [) U9 K$ v (command "zoom" "w" pz1 pz2)4 n- K! V2 r }$ m' _6 d4 n; _
(command "trim" arc4 "" p5 "")
g2 Z7 C0 \% [3 p, l3 D) k, j (command "erase" pl1 "")' \3 n7 r& B( @/ O" Q# \
(command "mirror" L2 "" p2 p12 "")
: N8 k! [& }0 Z' Y% U6 H ) ;end progn+ C0 {; r5 D2 W) V1 V+ g9 ~* t& y1 U
) ;end if, T5 U* @' ~& ^' \
) ;end progn
0 K7 {2 x/ d0 s' s (progn
# Q% o! b4 [9 y4 w2 S. b (setq ang12 (- (/ pi 2) (angle p2 p12))) $ n) H9 [+ y% ~% K5 k' k$ r6 s& I& G
(setq ang57 (atan (/ r1 h)))
$ f& G1 A( |$ K% N3 H (setq ang58 (- ang0 (* ang12 2) (* ang57 2)))
/ s5 B% G/ w- E6 y3 b$ `$ ~6 P (setq ang577 (+ (/ pi 2) ang57))
# I' e& R x& y( s' i6 Y (setq ang588 (+ ang577 ang58))
( N' ]# J3 | A# H6 `! P (setq p57 (polar p2 ang577 (+ r1 r0)))' l) I6 M8 y& o6 E8 K
(setq p577 (polar p2 ang577 r0))
: b! u4 k$ e+ c% s6 G# U# D+ d (setq p588 (polar p2 ang588 r0))
2 ~. o: N/ q9 u/ Q; ~" {& U (setq p56 (list x2 (+ y2 h)))4 ~0 s/ P+ x+ K4 S" j' e
(command "arc" p577 "c" p57 p56)
5 c# d( a% B8 d8 i( r, ]8 [ (setq arc1 (entlast))
" r8 B8 b! u# ^$ d$ s* L (command "arc" p577 "c" p2 p588)
8 T$ N$ K8 B# @- M# p (setq arc2 (entlast))
4 v: x! @; a; @5 c8 V/ ?9 e (command "line" p56 p5 "")" Q- f1 i, ^' M3 _5 r6 d u
(setq L33 (entlast))
, c* g$ i: I. P2 o+ A (command "zoom" "w" p77 p88)
3 D; q3 w7 D; I. x7 t N (command "mirror" arc1 arc2 L2 L33 "" p2 p12 "")3 Z1 D5 @' ]6 O
(command "erase" arc2 "")
; `8 j; t- c6 T6 _' F! \6 ]! I( Y! u+ E$ b ) ;end progn
6 m7 ~, G! O: l& i4 Y0 x. I ) ;end if* h3 i- p) R0 k4 v
; S) u; d8 e/ z4 b
(setq beta (angle p2 p3))
. w3 M) H: f h) H7 _8 s6 o (setq ang2 (- (* angi 2) beta)) I m5 e+ K: \ a9 L
(setq p15 (polar p2 ang2 orad))8 _0 B1 j }5 N! w& d, s% j s
(command "arc" p15 "c" p2 p3)& t& q) Q- o# K6 X& R& a! N
(while (setq le (entnext le))- g8 a& N: ]( [
(ssadd le s)
; C# `1 c3 ~, \, n )
6 z1 x/ I2 T/ l9 T9 k' B (command "array" s "" "p" p2 numt "" "")9 [8 T- r0 F: m2 u0 ?" F4 F
(setq q1 (nth 0 p2))) X6 s8 c; Q/ p: ?
(setq q2 (nth 1 p2))
3 I7 U; `' E; \7 h& @ (setq q5 (+ q1 pitr 2))$ i& K3 R9 c5 _# {! w
(setq q6 (- q2 pitr 2))2 l# r$ i( v$ t2 }! i+ n" Q, K. k
(setq q3 (- q1 pitr 2))
" T6 u9 P- l. b/ y (setq q4 (+ q2 pitr 2))$ b$ t2 T9 k! t+ a
(setq q1 (list q5 q6))
9 }9 j5 I3 \2 h/ F" @& z' | (setq q2 (list q3 q4))
! z$ L+ T5 y, d' b9 p (command "zoom" "w" q1 q2)
- m0 d9 x' d5 M3 \6 ] )6 T2 B' M s( o+ F+ O3 p4 S
)6 K4 }7 u' L: ~6 e9 y* k
(setvar "pickbox" 5)* O5 m% M$ \7 c4 ?+ @8 R
(setvar "aperture" 5)
3 V. a1 [! n' }4 a- y; W (setvar "osmode" 37)* @0 s( G( n7 m. c
: D" _$ m0 `: o* A* `
(princ "Finish gear ")1 t: L" p4 H( q6 W; I B! b% N9 n
(princ numt)) v* S. p+ w1 S4 w' F4 j' A8 h
(princ "T")7 f8 @ s6 W8 r7 a" p
(princ)+ v& m$ U) C5 e* K1 W
)* G7 R5 S3 Z( O
% x# K5 [" a9 i/ u* R. d+ v U- u# }/ q
|