还做读书狼 发表于 2011-9-12 22:10 8 \- Z/ K3 L8 ?% f# G
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 ...
* U7 X5 s! \+ M+ r- b1 ?' v5 X3 b(defun C:gear ()
4 W% o) K2 j Q3 ^& S; d( W, z (setq numt nil" Y4 m- P5 D* C2 `/ {
diap nil + j. o& {7 ]. ]" e/ } ?8 y
prsa nil
5 M1 X6 y7 { o pnts nil5 a: g4 P# C! {$ O4 M' ^
test nil
, w, t8 w! v- B f/ p4 \; Y pwd nil/ `4 T: R3 V F
): u" G% W# F3 \1 @0 G
6 D! ~% Y' `$ b9 w1 q1 `. v (setq numt (getint "Number of teeth:<24>"))
7 S/ _$ h- u: r; G8 h (if (= numt nil)
. n/ B9 ^7 F/ J" B& A, I (setq numt 24)
4 J, c# h2 P) I )
3 Q! P' Z' d% Y$ `8 |% q0 c+ b" [ (setq diap (getreal "Modulus of gear:<0.5> "))4 j( I" }" ~' B W2 R: D
(if (= diap nil)9 J- ` ^6 X/ o; A+ q4 n
(setq diap (/ 1 0.5))
/ Z0 I/ v5 {; m( a1 I4 m( l3 F (setq diap (/ 1 diap))' B1 P9 d' I% r) \
)
- ]7 [( ?( H8 ] (setq prsa (getreal "Pressure angle:<20.0> "))
8 d; y$ p: }' O p7 }1 w# D (if (= prsa nil)' ~- p* k7 L% _$ k6 P0 \$ C; F
(setq prsa 20.0)
& \) K. \6 U0 ]' B8 C )2 q6 }; Y; B+ b$ P
(setq pnts (getint "number of points on curve:<40> "))
8 u( z$ b" K) m (if (= pnts nil)' A1 U$ b7 \" u% s
(setq pnts 40)
: t2 A! y9 r1 g )7 \& _( y* l: q7 X; O
; (setq pwd (getreal "Please input password:"))
! W" |/ P w4 ]0 g' V. o3 \2 P; (if (/= pwd 8833)
4 y/ n# J. u. ]( h* _; (setq numt 0)
7 ] G) J& L/ g( _) h; )
# w& u5 }5 d; J: ?; (if (= pwd nil)2 l/ ~' r" q$ a' {6 u
; (setq numt 0); l2 y) e$ N& d+ H7 `& S; l
; ); h5 @2 C5 A% x9 u1 v
;: Y7 q% q/ H) l
(command "osnap" "non")
3 f4 h' B2 D* a P (setvar "cmdecho" 0)
* r0 {" e \ Y3 n' k) { (setq oldvar (getvar "pickbox"))
% ~6 W# h0 X* }7 d% W/ D( @3 K5 _ (setvar "pickbox" 0)9 o) [ l: C; B D8 N
(setvar "aperture" 1)
' z6 ?! e) |" f! p7 h- ]/ h8 b1 V (command "osmode" "0" )
, P; \" p: a! F( m% r% L$ `;
4 l( x2 J& |' @& k/ t ` X (setq prsa (/ (* prsa pi) 180.0))
' i! @7 ~: i/ ]' t5 {2 A! c: ? (setq pitd (/ numt diap))
: b0 _0 K9 q) @' M5 v& K3 R (setq outd (/ (+ numt 2) diap)), \9 R0 c3 w" ~
(setq basr (/ (* pitd (cos prsa)) 2))
$ ~6 A/ M4 J) c. T' N& B: Q J (setq orad (/ outd 2.0))$ R1 O6 V3 L4 ~
(setq z (- (expt orad 2.0) (expt basr 2.0)))
( K1 l5 ]# w( g2 v- K8 Y" y9 p (setq x (sqrt z))1 s' }8 Q0 \- H, d3 [5 ^
(setq paodd (atan (/ x basr)))
' O( C% j+ x. p0 l! w (setq incr (/ paodd pnts))4 ]8 E- @% W( I* L
(setq p 0.0)4 [- U1 _- Y- r' M: g4 U
(setq pitr (/ pitd 2.0))
" |/ j; y Y) B/ t! p$ @ (setq pang (/ 360. (* numt 4.0)))
$ U) c, N- B9 d1 c. m- y; q7 L1 B4 A (setq pang (/ (* pang pi) 180.0))( ^& D8 { X$ u9 L- T
(graphscr)
' y2 h0 ]4 k- { (setq p2 (getpoint "center of gear:"))# P' H# K% l. M3 c- z# b* M
(setq y2 (cadr p2))/ }4 z% V6 o' t, G" x
(setq x2 (car p2))
! ?6 g8 w' j0 p, M8 F! e# K, N (setq r0 (/ (/ (- numt 2.5) diap) 2))& Y2 b# ^* J) F
(setq r1 (/ 0.2 diap))
5 x# N: i, ?" f$ H( ` (setq h (sqrt (- (* (+ r1 r0) (+ r1 r0)) (* r1 r1)))), V( e- \0 E! O& i) r! x% z3 Z. a
(setq ang0 (/ (* pi 2) numt))
) ^1 {& {. I5 o (setq y5 (+ y2 basr))0 s3 \0 I3 P; ~( U) a5 w' H
(setq p5 (list x2 y5))0 [+ [; w8 d: E' a/ P5 ^3 K
(setq y55 (+ y2 r0))
, f4 S- Y* G1 Z, T& M I (setq p55 (list x2 y55))$ T0 w% _0 v1 `5 e5 ?/ Q7 J( r
(setq p88 (list (+ x2 2) (+ y5 2)))
6 ]0 t% I4 \9 `% V (setq a3 (/ (* pi 5) 4))
) ~: S% x f+ s6 Q% q; F (setq a4 (/ pi 4))
( H; Z- r3 N+ U2 a (setq pz3 (polar p2 a3 (* orad 1.5)))
( U+ ]/ F- g) l( i$ c8 b (setq pz4 (polar p2 a4 (* orad 1.5)))
9 v! s& ~- _; P (command "zoom" "w" pz3 pz4)
9 k. B( R& p/ I. D( t;& d2 }6 H- Z h) a7 d( f+ H
(setq clay (getvar "CLAYER"))
; p) D- S' g6 u/ k6 w0 a8 D (setq sblip (getvar "BLIPMODE"))7 p- T4 F" w! w
(setq ts (tblsearch "LAYER" "CEN"))
^2 a$ r0 B) g' P7 s7 T (if (null ts)
7 h1 w9 j0 b: _: s: L9 x% w: M (progn
1 v6 z, {! E6 A% P (prompt "\nCreating new layer - CEN. ")
! O& r1 T( p' a) ]- }. K (setvar "BLIPMODE" 0). n6 Z! S$ Y" a! a2 `+ i
(command "LAYER" "M" "CEN" "LT" "CENTER" "CEN" "C" "RED" "CEN" "")
/ J/ O8 _) e, U/ v' k' p )* @; o4 M* S8 B& u# S J1 y- G" \
(progn- L, v$ x2 f+ U9 w }6 U8 y7 f! X
(if (> (cdr (assoc 70 ts)) 0) (command "LAYER" "T" "CEN" "ON" "CEN" "U" "CEN" ""))
8 y- H$ c7 I: G# R (command "LAYER" "S" "cen" "")5 Z9 a, O+ O2 Y
)* I. e7 E2 {8 q; U C
) p$ v8 \8 g2 l' f
(command "circle" p2 pitr)' G3 k0 W& A( x# \0 g
(setvar "BLIPMODE" sblip)
. h4 J! t& u' Y8 o7 { (command "LAYER" "S" clay "")# ~( ?; w( i& M0 ^3 G
;
! D) O6 ? ^$ { (setq a1 (- (/ pi 2 ) 0.1))3 C/ S6 i. G, ]
(setq a2 (+ (/ pi 2) 0.1))
5 h0 s5 j0 J, x' ~+ S6 b% B (setq pz1 (polar p2 a1 basr))
2 I: m1 k% Y8 a4 e% v b( G (setq pz2 (polar p2 a2 orad))
' K# T, q4 A2 E6 H' u m, ] (command "zoom" "w" pz1 pz2)
8 v* V% E: Z z! q: p. v8 [- G (setq s (ssadd))1 l! I/ g$ g# O2 H, z7 S
(setq le (entlast))( m2 Q0 H. g4 C( @3 j$ r: o
(setq test 0)
' e+ y4 J) p. I* p& b (command "pline" p5)3 Z" ^; o o1 s |
(setq p (+ incr p ))2 C! z0 O- [$ j
(while (> pnts 0)
8 |4 D9 Y3 o& r$ i/ |4 F (setq e1 (sin p))
. c/ | r" A" L9 H( R, U @* K H (setq e2 (cos p)): R6 L3 Q0 k# {, m9 r2 d6 A! x8 n
(setq e (/ e1 e2))" x6 n( c& ?- ?! l
(setq j (- e p))% w- l/ \* N6 \
(setq x1 (* (/ (sin j) (cos p)) basr))
: Q, d! Z0 X4 M! m& m% r4 C (setq y1 (* (/ (cos j) (cos p)) basr))
8 r: Q2 Y8 Y. x& o (setq x3 (+ x2 x1))
; ], X' e5 K. a, ?$ ^' j$ ]( w L (setq y3 (+ y2 y1))6 A+ u- I' o+ }8 H4 ?
(setq p3 (list x3 y3))
5 a3 @) x4 y6 e( }- b (command p3)
1 |* B0 w) K7 Z3 t: u6 T (setq p (+ incr p))! }' Z/ m; K4 L0 A* ~8 {
(setq pnts (- pnts 1))% C H9 Z$ H2 C4 u7 N+ h- w
(if (/= test 1)
+ ?1 j/ k( n- N: p5 j, e (progn+ J' |9 Z' a# n1 Z8 J# J
(setq hyp (sqrt (+ (expt x1 2) (expt y1 2))))/ p9 j' {& o6 J' ?; R B
(if (> hyp pitr)
+ j4 \5 c( W: u (progn2 W; R/ H4 B7 C& v: ?
(setq pint p3)5 J3 O3 r. T( Z( s, |% y1 d: M+ K
(setq test 1)+ J# l% ~1 K6 t! ^5 `* q
)
" f5 C4 ]! _1 u$ L )9 r7 d3 B4 f' h- l! P% {
);endif) K7 o+ n* H* P# T2 |. h; Y
);endif
$ z$ l- y( [: O. Y( N' m, { )
X- \' h( }8 e4 H) y (command "")
% B J( [5 F8 H# C (setq L2 (ssget "L"))+ Z- s- P2 }/ [5 H5 p
(initget "Y y N n")3 q3 Q: Y9 ~- ^
(setq ans (getkword "\n Finish the gear ?:<Y> ")) S c1 \: o7 P0 c4 ?/ d/ l
(if (/= ans "N")) D* [; z5 }- ^# y. l
(progn6 \) ~' c# {( Q$ ^
(command "zoom" "w" pz1 pz2)$ S3 y- @; M* A) p& u( r2 e
(setq p11 (osnap pint "inter"))2 }/ T0 i8 e+ Z+ C/ k5 F
(setq ang (angle p2 p11))
/ b' k0 x' a) w: H2 C: ` (setq angi (- ang pang))
3 l! V0 V3 H% G6 d8 G6 H (setq p12 (polar p2 angi 1.0))& U7 V" w$ x5 n3 b
;
9 l, T' D8 v% b! P0 Y (if (< (* 0.94 numt (/ 1 diap)) (* h 2.0005))3 P$ w y2 }/ p- s% x
(progn4 ]6 f( J4 S/ j, G% _$ Y( g7 u6 o- l- }
(if (< numt 42)
$ L h L3 F' P- M( K (progn4 o/ d6 i! L2 z" S7 W- W
(setq p56 (list x2 (+ y2 r0)))3 m% G1 ? F) C F4 E
(command "line" p56 p5 "") b) {$ m; S7 c Q% S7 W$ Z
(setq L33 (entlast))7 l' d2 o, X3 {: C. b3 t# u
(command "zoom" "w" p77 p88)
; b! U2 f! \0 A) i, e& _; D. M; W (command "mirror" L2 L33 "" p2 p12 ""): u2 g4 M. E" i& w8 ]- j$ r: p! u+ W
(setq adj1 (- angi (/ pi 2)))9 j& [/ f' O# f+ N" I
(setq adj2 (- (/ pi 2)(* pang 4)))7 _8 S) I! E* L
(setq p17 (polar p2 (+ angi adj1) r0))% `" C7 P$ L- x1 r h9 M, B& |
(setq p16 (polar p2 adj2 r0))
/ m: v: A6 v) E/ l% M (command "arc" p16 "c" p2 p17)1 s; p. S3 o. i4 S/ l
) ;end progn
* X7 A* A8 H9 |, Z (progn* e# N; y* z, R9 w ]6 z; A
(command "zoom" "w" p77 p88)
- q( a9 w. K; {; v3 J (command "mirror" L2 "" p2 p12 "")5 L* ]! x9 j. P1 j
(setq pL1 (entlast))
$ }' ]% |- e) L3 q+ d! w5 N8 M (setq adj1 (- angi (/ pi 2)))
/ F$ t. y9 K% m) F3 s" A/ _ (setq adj2 (- (/ pi 2)(* pang 4)))
# c2 n: \! ~* u2 w) a! f (setq p17 (polar p2 (+ angi adj1) r0))
D! y* ^+ d' C b5 S1 k" ] (setq p16 (polar p2 adj2 r0))
, d$ z# ~* e' @0 }& I, D! ~, } (if (> numt 101)
4 x" ~5 F$ s. A! w8 h# k8 g (command "arc" p17 "c" p2 p16)
. `6 D8 R7 f" B2 s4 U (command "arc" p16 "c" p2 p17))
' A3 W0 t. N( V; P; ^ (setq arc4 (entlast))9 x! f! f/ _# ?, E+ O. Z
(setq p171 (polar p17 0.7854 (/ 0.4 diap)))! f8 ^* O0 f; n6 `* ]& x* _( c. t2 p
(setq p172 (polar p17 3.9 (/ 0.4 diap)))2 x( P/ o0 k' N, g- t' A: E6 q4 p
(if (> numt 101)
3 g# X8 M! G+ N _/ w. W (setq p18 (polar p2 (+ angi adj1 ang0) r0))
/ ]! z) m7 v0 W0 ]. U$ A, ` } (setq p18 (polar p2 (+ adj2 ang0) r0)))" U# G, l+ x, b1 @7 O, k
(setq p181 (polar p18 2.3 (/ 0.4 diap)))+ i' c5 O; K% ?/ t6 \) l
(setq p182 (polar p18 5.5 (/ 0.4 diap)))& Q; |# k" u O. B0 a& y2 X+ s
(command "zoom" "w" p171 p172)
* K) C$ Z6 N" x (if (> numt 101)3 c- [! T& ^/ u- g+ T
(command "extend" pL1 "" p16 "")
v* i; I8 f1 }4 A$ b {* b5 ~% | (command "extend" pL1 "" p17 ""))0 U7 Z w! t$ R; P. n' D
(setq ang0 (/ (* ang0 180) pi))* c5 `. v7 t# Q
(command "rotate" arc4 "" p2 ang0)
& h0 e7 ~/ ?4 X- P# S& O. w (command "zoom" "w" p181 p182)
! i: k, {: G- S& |, E. x- z (command "extend" L2 "" p18 ""), I" p4 g$ G* \, ~/ z9 n2 l k
(command "zoom" "w" pz1 pz2)
9 v4 o, ^- o' o9 \5 p; X' T (command "trim" arc4 "" p5 "")
, Y# \: W+ `4 ?" M# P (command "erase" pl1 "")4 W5 o& j: m* b1 y6 @3 n
(command "mirror" L2 "" p2 p12 "")8 Q# b% Z: r( ^6 a* ]
) ;end progn0 p, P, S5 ~0 r4 ^0 ]( a
) ;end if1 ?1 Y( p8 V# i) v. K2 c
) ;end progn
: o5 h9 f/ g" b& v& t: Q2 z (progn + G6 t8 U- I. q( ?$ I0 x* J# i
(setq ang12 (- (/ pi 2) (angle p2 p12))) ! t0 @" Y% v5 R1 \! J0 ?$ Y8 b+ E
(setq ang57 (atan (/ r1 h))), C- j% G. N* n7 S7 l: w
(setq ang58 (- ang0 (* ang12 2) (* ang57 2)))3 u, N& d: \ k
(setq ang577 (+ (/ pi 2) ang57))& S; Q3 t4 A5 N' x# N' K! ~
(setq ang588 (+ ang577 ang58))
$ u) p8 x2 ~) F6 @2 y( u# x (setq p57 (polar p2 ang577 (+ r1 r0)))
9 ] y+ b% r& l/ i6 f (setq p577 (polar p2 ang577 r0)), H, ~/ Y, s4 s. w4 X& l& t
(setq p588 (polar p2 ang588 r0))
: G( @: ?% \* ?1 d8 C5 T( f (setq p56 (list x2 (+ y2 h)))
* D! n- Y" p- \ (command "arc" p577 "c" p57 p56)
2 Z4 ?' {. x4 ?2 [% M& }/ f7 j" p (setq arc1 (entlast)), _- p) q( C( c+ X( A+ l- \) b
(command "arc" p577 "c" p2 p588)# q3 g& c# s0 Y( @% @) o; O* U: `
(setq arc2 (entlast))9 @2 @6 K+ h5 y$ ^( }. ?
(command "line" p56 p5 "")
`! j: h( P0 k4 U! K' X (setq L33 (entlast)) o7 r# ~- w9 N7 \
(command "zoom" "w" p77 p88)1 O+ H# W7 y; \
(command "mirror" arc1 arc2 L2 L33 "" p2 p12 ""), r+ N# Y# o3 S7 V4 R
(command "erase" arc2 "")
8 ]1 F. r8 Y9 }" j8 ~2 n& }" U0 R ) ;end progn 6 _9 h5 _% S; Y; Q; j
) ;end if
. S8 M6 o/ ^7 p4 Y$ _;
' I. S1 K& J. S, a (setq beta (angle p2 p3))
1 ^# j9 j( q/ y/ y1 s$ g1 x9 _7 k (setq ang2 (- (* angi 2) beta))) V6 g$ U+ Q, ^
(setq p15 (polar p2 ang2 orad))7 \# v: Q" W# P% @
(command "arc" p15 "c" p2 p3)* |' ?: N* R8 t X% c) P1 u6 q+ u
(while (setq le (entnext le))) y: a8 o6 ~7 r1 N, _, A
(ssadd le s)
7 ^% c4 j& `# J C ). h1 T. j& [5 c0 D
(command "array" s "" "p" p2 numt "" "")' @2 O( F1 _* R1 m4 z
(setq q1 (nth 0 p2))
6 B. I [4 s, ]0 |( q (setq q2 (nth 1 p2))
, M1 ~* M3 h" @. c( h (setq q5 (+ q1 pitr 2))
5 \ g4 g; D p0 S (setq q6 (- q2 pitr 2))
1 Q: ?+ D U+ ]) H (setq q3 (- q1 pitr 2))
1 i' Z% o2 F2 R, b2 A (setq q4 (+ q2 pitr 2))
7 ]+ ^- o/ s( i; e1 F- H (setq q1 (list q5 q6))9 E, x( P6 s& w1 G; R! z
(setq q2 (list q3 q4)): T( Z$ U. [1 K, i! u) _7 R
(command "zoom" "w" q1 q2)8 @6 j+ U1 a; ^9 M, ^9 [
)3 J3 I. S. h# X: A+ r6 v; y
)
8 w8 K, P+ w S/ S' Z) k( G (setvar "pickbox" 5)
2 k% e7 l) P' N) q$ P( w (setvar "aperture" 5)9 N2 D8 G E- J4 D- t3 l9 x! e. ^
(setvar "osmode" 37)5 |6 L- L% q y5 Z! y* k4 T
* w. k! m0 g* \; I! I' M7 E( _
(princ "Finish gear ")- X! w8 s5 X0 L! l7 d5 h6 s9 m
(princ numt), ~' t0 B9 u% v9 W! I8 @
(princ "T")7 b& G% K [- ` `- f/ o% b" l
(princ)1 w; l, b, A' S+ _" e
)
: ~/ \8 Q1 @6 Q& _; W' O
9 b5 P7 `" X( }1 Y4 \8 s |