还做读书狼 发表于 2011-9-12 22:10 2 M; ^. X1 e0 U) L1 X
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 ...
9 g& L8 C; ^5 v+ s* B(defun C:gear () `9 b, M4 {: f
(setq numt nil
3 F! d. {" G$ h. K; a8 e! G$ n diap nil
" o& h; A* R: @" J1 `" ?+ n prsa nil
2 v6 `5 ]3 {/ H% s+ v# b pnts nil
% O3 ~, z0 e( F5 v. f9 I: {! \; o test nil
9 a' s0 j3 }6 X5 j5 [; g* B pwd nil: n! l, A+ z' J5 _: ]) N
)7 o& P' j% A4 l1 A
* ]- |% |2 z U5 T! [2 v
(setq numt (getint "Number of teeth:<24>"))
9 A* [1 [6 V& n4 L. L; J (if (= numt nil)
2 e# n- L8 j3 Q6 F3 y( S' J (setq numt 24)
: E" h0 E. v, ?& d4 d )
; Y% J7 [4 r' K; W' @: ]; L (setq diap (getreal "Modulus of gear:<0.5> "))
3 E( R# k# o3 d1 f6 i( j (if (= diap nil)7 `& }! p9 X' z6 w. ^
(setq diap (/ 1 0.5))2 P+ `' X& G, m D( n- p
(setq diap (/ 1 diap))% d( r& ^0 h/ e ~; K' F
)" Z% c- z( u: D
(setq prsa (getreal "Pressure angle:<20.0> "))
" ], E k3 T8 u3 E9 E& J( t$ g- h! i (if (= prsa nil)
# Q2 P1 h6 J9 I; f: N (setq prsa 20.0)
: H$ D8 J5 Z2 Q) ]+ @( C: \! l )( ~9 [! N+ ]! }# G
(setq pnts (getint "number of points on curve:<40> "))
; z# A7 R! Q1 Q& i: D' g2 } (if (= pnts nil). ?: \! D2 k- t5 A: |) y5 a
(setq pnts 40)
2 Z4 T: j8 I3 M0 S* E/ ]6 p M )
4 N- l. h0 k/ ~4 w5 P; (setq pwd (getreal "Please input password:"))
0 A) P: s9 D) ^- r' ?+ c; (if (/= pwd 8833)9 E# }+ P' G& p7 I4 q& n/ X
; (setq numt 0)
1 D: w, Z% |8 b. F/ x; )* ~7 R! A6 B# e: ?% y# D
; (if (= pwd nil)3 ~0 ]9 I' ?0 ^9 ^1 L
; (setq numt 0). l8 W0 x# v. M* V
; )
2 Y/ T# q( P9 C) u6 z% }, t- N;, f3 ^4 H. U( y2 e9 V
(command "osnap" "non"), w+ z" V- ~5 } P
(setvar "cmdecho" 0)
; x& K4 t0 l" M (setq oldvar (getvar "pickbox"))
! }' S7 N) c- ?5 Z (setvar "pickbox" 0)' [* x* @ w( r+ W7 @
(setvar "aperture" 1)3 L d$ m) V$ J" i: X
(command "osmode" "0" )/ [- Q7 F6 X, Y; y, R
;
7 A" ~7 O* v7 |- i4 \ (setq prsa (/ (* prsa pi) 180.0))6 h$ Q3 n5 G4 i: R1 V( d% M
(setq pitd (/ numt diap))
0 V9 E# ~% T, a E (setq outd (/ (+ numt 2) diap)) y4 t+ c- r& J4 ?/ j9 A. Y
(setq basr (/ (* pitd (cos prsa)) 2))& _5 m# _" a! s! i' p7 M
(setq orad (/ outd 2.0))
6 s7 R# r! ]9 p% [ (setq z (- (expt orad 2.0) (expt basr 2.0)))
$ \5 Z& i! G% g' x8 E! K; S5 T (setq x (sqrt z))/ t s# V* |) Z% }4 w. C
(setq paodd (atan (/ x basr)))
+ X7 W& |' X5 M+ U% S2 w o (setq incr (/ paodd pnts))
4 t/ t' k* S, J( V& C8 U8 J (setq p 0.0)
2 o# F# t) Z, o) {0 j (setq pitr (/ pitd 2.0))
9 O1 U+ h9 i# X (setq pang (/ 360. (* numt 4.0)))( \8 z0 ]4 @ g5 h
(setq pang (/ (* pang pi) 180.0))+ ?* X" C7 @8 o, W7 o
(graphscr)4 M0 K Q. y4 L% i- B7 W0 v4 G
(setq p2 (getpoint "center of gear:"))
; P! U* T) |5 E6 F. g3 M; C: M5 W (setq y2 (cadr p2))
8 S) ~0 x3 A7 @- T (setq x2 (car p2))7 l! f# W; `+ M3 u9 D
(setq r0 (/ (/ (- numt 2.5) diap) 2))
' [7 ^& }, d3 q4 `& r* v (setq r1 (/ 0.2 diap)). L# s# j% a' n: S" Q" y, o! @1 q
(setq h (sqrt (- (* (+ r1 r0) (+ r1 r0)) (* r1 r1))))
2 q8 S' s' d" G* u! X (setq ang0 (/ (* pi 2) numt))
3 |3 Y2 K8 b( c( U7 ~8 D9 X (setq y5 (+ y2 basr))
/ W$ w% T% r' S2 ` Q# Z( ] (setq p5 (list x2 y5))3 `: y2 }, d& x# h, u
(setq y55 (+ y2 r0))
# z% X& q2 G7 @( V! c3 z: O. H (setq p55 (list x2 y55))- ~3 H7 k3 M% q+ |
(setq p88 (list (+ x2 2) (+ y5 2)))8 N7 i+ u4 K& n$ K; X
(setq a3 (/ (* pi 5) 4))
1 u1 P( x+ {. _3 G, S (setq a4 (/ pi 4))
" S( Q: s) ^2 c8 g/ b# ] (setq pz3 (polar p2 a3 (* orad 1.5)))) @* ^' }$ D$ N" k' ~
(setq pz4 (polar p2 a4 (* orad 1.5)))
' i e4 ]4 Y6 W- [, I+ X; z (command "zoom" "w" pz3 pz4)9 g& r" f( q5 l8 ?% ] p& e6 h T
;" s, I* Q" ^" ~+ R1 `. t4 m: Q& M
(setq clay (getvar "CLAYER"))
3 H3 w+ Y" A( i (setq sblip (getvar "BLIPMODE"))
4 {3 o) @( z) R" ^# N (setq ts (tblsearch "LAYER" "CEN"))
& s3 P+ ^7 Z+ `& g, R" o (if (null ts)+ w" A/ X& E# V0 I- `* q8 Q
(progn) X& Y" T# [2 g& a
(prompt "\nCreating new layer - CEN. ") ' M: z; @9 g4 _! V/ j
(setvar "BLIPMODE" 0)/ _1 I7 `; J1 z! n& ?
(command "LAYER" "M" "CEN" "LT" "CENTER" "CEN" "C" "RED" "CEN" "") ' s$ N3 V" b! c( K' B- c1 A, G# d
)
1 j5 n( m. {+ `2 n0 Z* V& [4 h (progn9 }( ]5 W3 Y1 ^: d
(if (> (cdr (assoc 70 ts)) 0) (command "LAYER" "T" "CEN" "ON" "CEN" "U" "CEN" ""))0 b& t/ {) G6 o/ ~0 i9 l+ q
(command "LAYER" "S" "cen" "")
1 \$ Q! Z& v; o; J H )! l9 e$ \. C; J% e
)7 n8 ~: `, v2 R' M1 j
(command "circle" p2 pitr)
U% H' {. l# e+ s% I/ m4 a (setvar "BLIPMODE" sblip)2 h5 N7 g6 u) J. B8 @$ K9 y
(command "LAYER" "S" clay "")9 V% H( _: Q- J* V
;! y8 a8 E! H5 Q. m( ?9 a
(setq a1 (- (/ pi 2 ) 0.1))% y) q( ^& T( G' c
(setq a2 (+ (/ pi 2) 0.1))& g R0 `3 M9 L+ t: d Q0 _# e
(setq pz1 (polar p2 a1 basr))
8 ^( J" u# X% [2 J (setq pz2 (polar p2 a2 orad))# f4 W9 ]4 m/ }4 ~' \0 @
(command "zoom" "w" pz1 pz2)6 \0 c5 {) }. m4 U$ X0 ~! Q6 S
(setq s (ssadd))
& d7 c3 N) j. w; o+ | (setq le (entlast))
. z8 K ?9 S2 n2 |3 j. T M (setq test 0); l: o# {& O/ W1 L% c( t
(command "pline" p5)0 C0 A, q( D+ p: r* u
(setq p (+ incr p ))
( k: F! l& O% q$ ]" g( E- r (while (> pnts 0)
; v! `, W2 O }& g; G( a+ \5 W F (setq e1 (sin p))& F- Q- e9 K0 C2 m* N# Z" D3 f8 d
(setq e2 (cos p))
+ O: ^2 O2 X+ o (setq e (/ e1 e2)) u! C/ p6 P2 K1 w+ C
(setq j (- e p))
: n& s$ W j% n: f, g* O* u" @7 f (setq x1 (* (/ (sin j) (cos p)) basr)). t" z/ v4 h) ^0 w6 d% L
(setq y1 (* (/ (cos j) (cos p)) basr))& u; [' e; a5 B' Z s& p
(setq x3 (+ x2 x1))
( V1 D/ t7 B" {2 H9 L7 k (setq y3 (+ y2 y1))3 A) p v' z) m, U% q
(setq p3 (list x3 y3))
5 Z x: m/ j F1 M" I (command p3)
' V7 ^" _- Y" C& g H, N) L (setq p (+ incr p))4 K4 P' \, H& w
(setq pnts (- pnts 1))
$ B4 x( @* V# m$ g7 d/ `# j (if (/= test 1), V* K; T8 D, ?& P% ^
(progn' `# r# X9 ~& d" H: O3 P" `
(setq hyp (sqrt (+ (expt x1 2) (expt y1 2))))
3 }* C( c* x8 X* u6 N (if (> hyp pitr)
6 P" x0 z& c+ p' I8 w: x2 Z (progn
6 y x- r0 T- w7 e; v (setq pint p3), W, N+ U( i5 y! E; H) c I' Z( K% U
(setq test 1)' @! b7 g4 @' K3 Z2 ^' w0 R2 ^7 L3 H F
)
9 r4 q- z* F T( z )* ^$ `' ]6 y. @6 R9 `+ v: U
);endif
. C" C! l/ x: P2 a" J2 X8 f );endif$ b7 T d B; l6 W
)
% n$ c4 r# ]0 C3 j8 d* \ U (command "")+ j& h( F4 h! a- v# I
(setq L2 (ssget "L"))6 O! ?5 \1 s1 p) n6 g
(initget "Y y N n")3 N2 t9 p5 \9 E5 l% n+ i/ Y
(setq ans (getkword "\n Finish the gear ?:<Y> "))
{+ y& P5 q8 K8 U8 W! ? (if (/= ans "N")
& g& d" [! o' n) `$ j7 K. u' s (progn
3 J2 m& N" f- M5 D8 w% X4 @ (command "zoom" "w" pz1 pz2)5 e9 k% ]# x5 h ]# l o
(setq p11 (osnap pint "inter"))
# b/ c) `7 ]* @; U; n7 R (setq ang (angle p2 p11))
2 r6 j, F( ?" J ~1 y& U (setq angi (- ang pang))
8 B5 {. Y2 g9 y! E4 ~ m (setq p12 (polar p2 angi 1.0))
4 k! Z! w' Q3 C& I" I" S( `;' U( J4 o" D8 X
(if (< (* 0.94 numt (/ 1 diap)) (* h 2.0005))9 N, `! r, U5 @. X1 ]) z
(progn
& x) n0 u6 i% W Q( _# ? (if (< numt 42)) z; @! J5 `' D7 _$ x. i
(progn
. {& e* H( w' ]( c. [- G8 Y (setq p56 (list x2 (+ y2 r0))); U( a4 N/ h8 @' B m0 F
(command "line" p56 p5 "")
5 B! W |* x6 U0 U" `0 O1 @" L (setq L33 (entlast))
. ` z5 `4 K4 V% ^+ s9 `! d; } (command "zoom" "w" p77 p88) ^3 g: @1 h6 w4 N( u0 m7 Z
(command "mirror" L2 L33 "" p2 p12 "")- u% J a, ~3 T
(setq adj1 (- angi (/ pi 2)))
% W& F1 p' ?. x7 `8 g# ^ (setq adj2 (- (/ pi 2)(* pang 4)))( u# v5 F/ H: H# T$ [
(setq p17 (polar p2 (+ angi adj1) r0))
! w6 f0 z$ ^0 i; F% l% `9 x (setq p16 (polar p2 adj2 r0))( \4 K; A$ Y1 C0 n4 a5 |$ _4 e
(command "arc" p16 "c" p2 p17)6 N. J4 a2 e( v; ?6 f
) ;end progn
n9 D/ R+ v* y4 q* l (progn
* o) I2 I- `/ Q7 \9 W* k1 g/ s (command "zoom" "w" p77 p88), p! M7 n4 q9 Y2 D
(command "mirror" L2 "" p2 p12 "")
2 Y7 q9 u% y" ~5 L, H% U' R0 |, ] (setq pL1 (entlast)) 4 w% w+ B$ S& [$ F% H2 ]" U
(setq adj1 (- angi (/ pi 2)))
5 o; y$ I0 _3 w$ o& H$ y$ c (setq adj2 (- (/ pi 2)(* pang 4)))
/ X* V9 q+ R$ K (setq p17 (polar p2 (+ angi adj1) r0))
# D& Q6 C, c# [ (setq p16 (polar p2 adj2 r0))5 E7 H/ E0 ^/ e9 O3 Q( d
(if (> numt 101)+ f4 Z" s( y3 \) {% v3 ~/ Q7 ?
(command "arc" p17 "c" p2 p16)
) s: P+ n1 B" a6 N (command "arc" p16 "c" p2 p17))
, T6 T4 j& m' p! ]6 g( s (setq arc4 (entlast))) |1 V0 L3 p! y! t* @7 ]. {
(setq p171 (polar p17 0.7854 (/ 0.4 diap)))
; Y' \* H3 u9 }7 {# f# T& j- ? (setq p172 (polar p17 3.9 (/ 0.4 diap)))
; N0 A; o& M; E0 a (if (> numt 101)/ @! h/ P D0 I8 B/ Q ^- R
(setq p18 (polar p2 (+ angi adj1 ang0) r0)) k+ c9 A& f# I( F; ^% g
(setq p18 (polar p2 (+ adj2 ang0) r0)))
( k# T9 \! z2 ]4 p7 Q; `. c0 g; h3 P (setq p181 (polar p18 2.3 (/ 0.4 diap)))* H; r/ O0 S% x
(setq p182 (polar p18 5.5 (/ 0.4 diap)))9 i4 q5 K- N: F6 S
(command "zoom" "w" p171 p172)
( }5 g0 {) i$ K3 q C* r3 x8 `7 f (if (> numt 101)
+ `3 W# l" D' a1 ]) p (command "extend" pL1 "" p16 "")
R! v+ c# X5 P& O (command "extend" pL1 "" p17 ""))
" y& ?, C5 r% g/ t( e6 g3 L4 N (setq ang0 (/ (* ang0 180) pi))
8 a N5 T. B/ {8 b (command "rotate" arc4 "" p2 ang0)
# L2 y( s9 b4 d0 Y (command "zoom" "w" p181 p182)( P) i7 ^3 b0 k, C( p9 M
(command "extend" L2 "" p18 "")
) c* [& f/ E/ Y5 p# k5 T, h h (command "zoom" "w" pz1 pz2)7 m* G1 j7 D9 g9 B* O* s: [
(command "trim" arc4 "" p5 "")4 r* R6 @9 u. v5 E$ D5 F
(command "erase" pl1 "")
9 f; _) s; X: g; W. ?" D# e (command "mirror" L2 "" p2 p12 "")
7 x- e# B3 a- g: A) q7 ^6 X ) ;end progn
% X; H$ A$ w+ g" d9 b ) ;end if
6 g3 w4 ?& W1 q: V4 A/ }9 o ) ;end progn
: x# }5 m2 P9 _, p: }5 n (progn
( D" y- v+ U% H) P; s (setq ang12 (- (/ pi 2) (angle p2 p12))) ) T% B" `# h, k; Q
(setq ang57 (atan (/ r1 h)))5 i, ]- b- O* F* o: s) V
(setq ang58 (- ang0 (* ang12 2) (* ang57 2)))
$ l- Q, e- R( m# ]+ [ (setq ang577 (+ (/ pi 2) ang57))
E$ V0 J, I, e" Q# @ H( n6 t0 _2 k7 D (setq ang588 (+ ang577 ang58))
, s R' \6 h; S4 q (setq p57 (polar p2 ang577 (+ r1 r0)))
8 Q; Y+ t! i( q' F- m (setq p577 (polar p2 ang577 r0))
; U6 g7 g" L/ I# O (setq p588 (polar p2 ang588 r0))
: \9 K0 z+ t0 N6 K4 v (setq p56 (list x2 (+ y2 h)))
1 J# Z2 W. ^) O: b0 N+ I% T (command "arc" p577 "c" p57 p56)2 w& V K+ X- N; J Q2 [' b$ Z
(setq arc1 (entlast))
- C6 y) `: q. c: f (command "arc" p577 "c" p2 p588)
. v: T5 S: r) ^) q" ^" N (setq arc2 (entlast))
X/ W3 G* R8 k! s (command "line" p56 p5 "")2 c% Y! u0 \1 L* u% O* K4 e1 [5 \
(setq L33 (entlast))" t5 k; |$ L4 N! t! J2 ]4 j0 h
(command "zoom" "w" p77 p88)1 \& D' G% s! X# y
(command "mirror" arc1 arc2 L2 L33 "" p2 p12 "")+ x ?* P# x8 X7 V
(command "erase" arc2 "")! w$ Z6 ]$ W- c7 i+ c
) ;end progn n+ r( q0 z* s Y4 x; M
) ;end if
7 i2 Q" w. Y( X- z( G% m( u8 n2 P; Z4 l' b& D* ]$ Z: ?" Z
(setq beta (angle p2 p3))3 L/ k: J! c- ], o8 K
(setq ang2 (- (* angi 2) beta))+ i8 L1 s1 {( f8 {+ G8 p
(setq p15 (polar p2 ang2 orad))0 @, j7 X) ?& v& `
(command "arc" p15 "c" p2 p3)
* B* @5 ~( H' }% n (while (setq le (entnext le))9 E7 }7 B1 ~5 R. ]# |% |4 y0 w3 k
(ssadd le s)
9 m2 I; y7 m% @' A8 Z3 A W' @ )
4 a1 C# X5 L. ~' g. e (command "array" s "" "p" p2 numt "" "")$ J! G. J7 Q( G
(setq q1 (nth 0 p2))
5 F: N6 [2 s& X! ? (setq q2 (nth 1 p2))
1 ^& G, e0 a4 H/ A (setq q5 (+ q1 pitr 2))! n$ c% Q* o8 d6 c3 y
(setq q6 (- q2 pitr 2))* d8 p0 ], A/ O) q
(setq q3 (- q1 pitr 2))
1 d6 I4 U2 F O+ |* c: g (setq q4 (+ q2 pitr 2))
3 X# }8 @' ~ } (setq q1 (list q5 q6))% G$ o5 I# L$ B, t: U3 M0 b9 H
(setq q2 (list q3 q4))
1 C7 e u9 D' X( h2 G (command "zoom" "w" q1 q2)
2 O$ }- p. w y0 w# | )
' }5 h( Y1 f6 ~" v. T" ] )
1 W5 |1 m1 l a3 u2 T$ L- ] (setvar "pickbox" 5); l [4 M: x0 I% M7 Y# a2 s
(setvar "aperture" 5)
& l* B, V: {/ }/ i (setvar "osmode" 37)
+ W F2 Y! p: [* L6 x7 o
[( h) v b% i: i% _$ O* u9 ~; B (princ "Finish gear ")
" b% D2 e9 q6 |* I/ V$ @ (princ numt)
7 R( H, t4 H6 A! R+ p2 G7 [2 d (princ "T")
8 c- O% J7 b }! U8 B9 | (princ)
& x8 r! `' S2 q, F& m( f4 I- A. } )
. l: B: Y' a" w4 \' e" }+ G6 d6 o; Z3 p( Z
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