還做讀書狼 發表于 2011-9-12 22:10 1 r5 p8 \7 H2 ^8 u, W
你這個意思是什么意思?整體齒形是什么東西?是漸開線嗎?一般還真不畫出漸開線。只畫出齒頂圓齒根圓分度 ... 8 o. o' {( o7 o
(defun C:gear ()
/ S: X* |( k; w: r+ Q0 a" z _ (setq numt nil
6 a1 b* g1 H( ~# P% p8 S7 K diap nil $ ~! K7 z! @( e
prsa nil
& @$ O# ~6 X- A2 N3 G pnts nil+ ]& p( {: N+ z6 @* P7 C/ y
test nil
0 l M! v" t( M4 N; M* S w6 L pwd nil
; z' Z4 m9 [# ^. K' y! H$ q )' @; V0 P# V, `
+ O5 A" v" V0 Z' `% P. r8 y
(setq numt (getint "Number of teeth:<24>"))
$ U ~ V# y, Y! ~ (if (= numt nil)* m& g/ t3 ]% `! |- `3 D
(setq numt 24)& p: p/ {) @, X. C# B
)3 t# \+ h+ ^: ~- P5 q0 r! C' D
(setq diap (getreal "Modulus of gear:<0.5> "))
. K. e, q3 W' F l/ X (if (= diap nil)0 C n, a, l/ }) A; G+ k5 Q
(setq diap (/ 1 0.5))
W' I$ P# y. K/ u (setq diap (/ 1 diap))
8 r! C! p$ f y8 D% _& q7 c( O )
1 A% `' ~! h0 f1 m9 I (setq prsa (getreal "Pressure angle:<20.0> "))
9 I+ [ d* R* w (if (= prsa nil)* Z" Z. F, N+ p+ u$ x
(setq prsa 20.0)
7 E3 Q* ^. k( q f6 j+ n )
7 D7 ?- R+ K8 v (setq pnts (getint "number of points on curve:<40> ")). a& K8 @! Z. u/ n: }
(if (= pnts nil)4 l l! A8 O+ @( U
(setq pnts 40)
* D$ ~- q# [+ O! Z# P" [3 b0 S% H )* ], W, }/ i# j/ c& M) ?- l
; (setq pwd (getreal "Please input password:"))
; `: U# M- c# h: u( j% y- A' D; (if (/= pwd 8833), T) ~: |$ S; e
; (setq numt 0)
* x- G b: K/ x. ]: G; )$ Y" c; J7 s5 Y \
; (if (= pwd nil)
( `" G3 x+ j- D0 f# o; (setq numt 0)# g t; U; a8 p7 E8 P
; )- a" Q5 z- n! u8 p* x+ }( Q
;
" l5 j8 w8 E7 m5 Z (command "osnap" "non")
, f# E+ V5 e! ~ (setvar "cmdecho" 0)3 X( u1 [$ D$ c0 [* X. @
(setq oldvar (getvar "pickbox"))0 q, C" n( ~4 y) D4 @
(setvar "pickbox" 0)5 x, d0 c# Q/ V# e2 y! J+ s4 k6 D" C6 E
(setvar "aperture" 1)! U7 R" b% a$ b
(command "osmode" "0" )7 ~, I( N, ~% l0 ^6 z+ Z7 `& q
;0 J% r2 {" v! d7 }) k* p
(setq prsa (/ (* prsa pi) 180.0))/ h$ R B- L4 w3 x
(setq pitd (/ numt diap))9 S4 Z- U0 ]% v
(setq outd (/ (+ numt 2) diap))! f2 P. i8 l; }+ m9 `3 i4 _8 ^; C. w
(setq basr (/ (* pitd (cos prsa)) 2))0 T: e9 }. t; P- Y* |
(setq orad (/ outd 2.0))6 U/ V3 K6 @! d4 i o
(setq z (- (expt orad 2.0) (expt basr 2.0)))4 ?4 H% _5 [8 ~" o( D
(setq x (sqrt z))
* x0 t+ r0 x: z5 T1 f0 p( e% @ (setq paodd (atan (/ x basr)))+ b& v2 G C- X) ^; b$ z
(setq incr (/ paodd pnts))$ s8 O: O. E6 x
(setq p 0.0)' A( l) z4 b2 E X8 `0 Y I+ L, a2 v
(setq pitr (/ pitd 2.0))
+ g4 n0 ]" }' Y4 g6 }( I7 K (setq pang (/ 360. (* numt 4.0)))! u: `2 q- d0 q" I
(setq pang (/ (* pang pi) 180.0))
+ l+ z. X& r: R; k* V8 R (graphscr)! [1 E/ o" H+ A3 ^2 p
(setq p2 (getpoint "center of gear:"))$ }' w* l _' @- |6 h" C5 u- L
(setq y2 (cadr p2)) Z0 Q( |: B! O
(setq x2 (car p2))/ \, G% x! J, L4 h0 v7 E4 y
(setq r0 (/ (/ (- numt 2.5) diap) 2))
' O& A Z( Z9 [/ @2 e% i: Q (setq r1 (/ 0.2 diap))2 p8 L/ f3 U; e' i6 x
(setq h (sqrt (- (* (+ r1 r0) (+ r1 r0)) (* r1 r1))))
( x8 C* o; Y, z' y: f (setq ang0 (/ (* pi 2) numt))
6 J# _& l4 A. U# r (setq y5 (+ y2 basr))0 x3 b* p4 s! o
(setq p5 (list x2 y5))
) S5 u3 b8 a* L% s/ Q& Y3 [ (setq y55 (+ y2 r0))3 R! z8 F! B5 X8 ?6 C! @
(setq p55 (list x2 y55))) Z( O( Y* G+ y+ M) I( i* D
(setq p88 (list (+ x2 2) (+ y5 2))); b' U/ r1 G ?5 }6 C* `8 W' a' v
(setq a3 (/ (* pi 5) 4))
. k6 z, t( i* l; b& D (setq a4 (/ pi 4))) l% ~' Y* p6 E0 V: P- g* K5 \
(setq pz3 (polar p2 a3 (* orad 1.5)))9 N# [* w8 ^7 {' c# k; O
(setq pz4 (polar p2 a4 (* orad 1.5))). r+ n, H" D2 L* ^
(command "zoom" "w" pz3 pz4)
j0 t! Y! p# R' X) Y z/ K o;* m* k, B! r' _
(setq clay (getvar "CLAYER")). Q2 m1 i2 {9 J' ~- _
(setq sblip (getvar "BLIPMODE"))
6 {' K9 @' T: Q7 v" r (setq ts (tblsearch "LAYER" "CEN"))- `* P; D* @6 t- I. k, h
(if (null ts)3 c$ m* y0 X7 V9 K; v0 ?/ Z) K
(progn$ z9 q z# Q" W' \
(prompt "\nCreating new layer - CEN. ") ! d$ [4 s* i, z& w
(setvar "BLIPMODE" 0)0 p) }, m& p5 ^! M( |1 T
(command "LAYER" "M" "CEN" "LT" "CENTER" "CEN" "C" "RED" "CEN" "")
5 o0 D( K0 q, i+ Q8 t )
, a& X, o @& R' k$ g' W8 r (progn
. V# d, n$ k, z5 M3 I% s (if (> (cdr (assoc 70 ts)) 0) (command "LAYER" "T" "CEN" "ON" "CEN" "U" "CEN" ""))
' H( Z: k3 U8 X9 q (command "LAYER" "S" "cen" "")
. P6 h. J0 s$ W& z' W% R' F% _ )2 G- y% j+ ~% m ?9 H; ~
)' `$ h* E* W- K1 T2 Q/ c
(command "circle" p2 pitr)
8 X! ^: B% d. ^8 Q: a (setvar "BLIPMODE" sblip)/ M' C# Z7 }% C2 z- e
(command "LAYER" "S" clay "")" b, m" s6 W0 A; E
;
7 c9 f+ K6 ]4 j @ (setq a1 (- (/ pi 2 ) 0.1))
. I* _' B% F) o (setq a2 (+ (/ pi 2) 0.1))8 z, K; [3 g4 O; Y
(setq pz1 (polar p2 a1 basr))
* T/ J, D- a! e. q* M (setq pz2 (polar p2 a2 orad))
( _% j+ Y' g# H (command "zoom" "w" pz1 pz2)
; B" `. j3 `1 Q0 f) t (setq s (ssadd)) y, z( Y$ H9 ? c/ Q d4 K' H
(setq le (entlast))$ p x, m* j& R( s
(setq test 0)
5 _8 r8 R# l% d% f6 u3 C (command "pline" p5)+ U5 z0 F3 ?" D; ]6 a3 M" ^ E
(setq p (+ incr p ))% z1 u! ?& z b1 i% _% k
(while (> pnts 0)
. Y. }8 n) I# Y w* O' C2 u (setq e1 (sin p))
3 ?" U/ {8 J+ U, c (setq e2 (cos p))1 o' _ @; b5 k" G! ?
(setq e (/ e1 e2))3 J( x* }! a, U" q$ J6 G# d
(setq j (- e p))' i3 F+ L* s$ o, q( w
(setq x1 (* (/ (sin j) (cos p)) basr))
3 v% ?4 R' d" D' w3 I (setq y1 (* (/ (cos j) (cos p)) basr))
2 a4 \" _% s+ J4 S; E7 ]# u3 ~ (setq x3 (+ x2 x1))
4 ?+ o- s) ~; d (setq y3 (+ y2 y1)); ?5 R, G7 N5 e( k% b0 y3 s& c7 I
(setq p3 (list x3 y3))
0 c5 r7 v0 n, z" ]& C7 }2 [! @- W (command p3)
1 P: D7 L6 j9 ]# A& N f9 }8 z (setq p (+ incr p))- |7 t/ |) v7 F5 v3 W
(setq pnts (- pnts 1))6 K: Z- J$ h' N) w) L/ h
(if (/= test 1)
z( h0 @% F# A) @ (progn8 ^3 A# a; s! y0 x. i I2 M
(setq hyp (sqrt (+ (expt x1 2) (expt y1 2))))
_ c7 v Q* N5 b$ E8 R- ] (if (> hyp pitr)
5 P c/ [+ d3 i% H m1 G; y" e; O (progn
& X2 Y+ ?- }4 m" f+ X (setq pint p3)5 ~; o: a: G8 s7 ]9 `: H
(setq test 1), b, f' T F8 c8 N' u3 S
)7 ^3 M0 @* f4 z# g
)
7 F, p9 L! L& [3 {) y7 {$ S );endif# n( b' d1 g8 f5 Q" Z+ w) `, k8 x
);endif
8 m; R: P' [/ n )0 Z, @( g+ R$ `
(command "")+ z1 m: L' p9 N- _
(setq L2 (ssget "L")). a, a, |) V$ {- j+ j" e, T
(initget "Y y N n"), {6 Q* X4 q8 j# c# h
(setq ans (getkword "\n Finish the gear ?:<Y> "))
& f9 D4 f: P# t1 g (if (/= ans "N")+ Z! r5 q0 f: O; ^
(progn
4 p* t# _3 X) Z9 P8 V* R' O (command "zoom" "w" pz1 pz2)
; A" z9 @& j$ r0 c+ d$ ] (setq p11 (osnap pint "inter"))5 W2 h0 i1 m3 E' F
(setq ang (angle p2 p11))
. K2 @ W0 S, J! a1 F, W, p (setq angi (- ang pang))
: O+ {% \8 Q" N# w, o1 F3 `5 F (setq p12 (polar p2 angi 1.0))
/ L) k& o V: x, b" t;
; s6 ?0 u( {$ L0 `& P- @, @ (if (< (* 0.94 numt (/ 1 diap)) (* h 2.0005))1 [: H+ z6 T# G( A+ `7 L
(progn
! O3 v T/ u3 P1 f6 g$ u2 j5 d (if (< numt 42)
; z; {/ w, |8 B3 G0 J (progn
( @8 C* h" x+ Y7 V) `1 r; x0 b (setq p56 (list x2 (+ y2 r0)))
$ I0 ~6 i" Y" m* D8 z (command "line" p56 p5 "") P, B u6 e" H7 K: P0 Y
(setq L33 (entlast))2 A, D' c$ V1 }- ^
(command "zoom" "w" p77 p88)7 h' j. B' e3 |. |, v1 ?# ~( p9 _5 P# U
(command "mirror" L2 L33 "" p2 p12 "")7 z/ {8 f2 x3 w8 D# \" y. N
(setq adj1 (- angi (/ pi 2)))
( Y; n' `( L: R; n (setq adj2 (- (/ pi 2)(* pang 4)))2 U2 q' M( o" T0 U$ o* [) }$ E% r
(setq p17 (polar p2 (+ angi adj1) r0))
) n# S1 I! z1 k% x- V (setq p16 (polar p2 adj2 r0))
/ y9 W/ i0 _4 ?) l' V% \1 s% _$ B (command "arc" p16 "c" p2 p17)
) k a( K. Z- c ) ;end progn
' ]+ y/ K2 c$ Y" q% Q (progn) S7 x- V3 ?0 y( C8 \7 {7 i# K
(command "zoom" "w" p77 p88): ?# Z* o( [7 A. [3 \: @
(command "mirror" L2 "" p2 p12 "")
7 e! u6 W3 N1 _, P% p (setq pL1 (entlast))
! t% |2 d1 t$ ~0 ^5 f3 C' o5 l (setq adj1 (- angi (/ pi 2)))
/ v2 Y; u$ C$ j( f (setq adj2 (- (/ pi 2)(* pang 4)))+ e) g: ~; D7 N( [
(setq p17 (polar p2 (+ angi adj1) r0))
# r/ g$ s. x0 C# B# f" R+ n (setq p16 (polar p2 adj2 r0))
% O, D" D! J1 E* v1 Q# X- Z (if (> numt 101)
" I; C6 E/ i% ^1 ^/ s8 ~ (command "arc" p17 "c" p2 p16)
# z1 C: q8 j$ Y! `# J" T: D (command "arc" p16 "c" p2 p17))4 ~7 w4 T5 t) l7 m
(setq arc4 (entlast))
8 e/ m* f# w* i* n) C (setq p171 (polar p17 0.7854 (/ 0.4 diap)))
' M! W( z% O6 I; z/ s+ ^ D9 \ (setq p172 (polar p17 3.9 (/ 0.4 diap)))/ y. k6 o: v% ~: Z& C R/ I( p
(if (> numt 101)) @+ V) B6 F6 e3 U: J5 ]$ {
(setq p18 (polar p2 (+ angi adj1 ang0) r0))) i/ O3 ~# \1 `7 }$ L
(setq p18 (polar p2 (+ adj2 ang0) r0)))
' Y4 Y9 i* h6 ]0 }& V (setq p181 (polar p18 2.3 (/ 0.4 diap)))
! r" b1 }- h) b3 Q4 t+ ] (setq p182 (polar p18 5.5 (/ 0.4 diap)))! M0 O! n' m2 U
(command "zoom" "w" p171 p172)
( j! K, p ~' }2 ], c: x (if (> numt 101)
4 d: H+ _+ ]# {7 P* U (command "extend" pL1 "" p16 "")
3 W* F4 e/ b3 m- B1 R (command "extend" pL1 "" p17 ""))7 J/ W0 A9 A$ r, | p8 ?5 A
(setq ang0 (/ (* ang0 180) pi))& v, I p4 o0 l0 ~; N* k& j) C
(command "rotate" arc4 "" p2 ang0), N+ Z$ Z' b0 k' y9 E% o
(command "zoom" "w" p181 p182)
a; q0 [( t+ d7 s" B (command "extend" L2 "" p18 "")
+ z3 r& s' n' \/ ~5 | (command "zoom" "w" pz1 pz2)
) a2 K n3 F( w X! f5 q# G3 N (command "trim" arc4 "" p5 "")& [7 ~- c( L+ s, I" u5 l
(command "erase" pl1 "")0 w2 t d; b/ D8 s1 J4 y. p6 |! K& S
(command "mirror" L2 "" p2 p12 "")
. Y7 ~9 z+ ]8 z; U ) ;end progn1 i5 L1 ?6 |6 a* O# ~! N- }& V
) ;end if
- G, M- K. v. \2 g6 x ) ;end progn1 L8 F3 w9 {9 L6 o
(progn
" |9 n" B5 q/ o; G5 q$ v1 w (setq ang12 (- (/ pi 2) (angle p2 p12))) 4 y( Q1 x% h- Z2 p: A' ^
(setq ang57 (atan (/ r1 h)))" |4 L2 u7 F4 F
(setq ang58 (- ang0 (* ang12 2) (* ang57 2)))
4 _5 _' G: I5 H& f# ^& G (setq ang577 (+ (/ pi 2) ang57))% @8 A+ ~3 p4 c3 n5 w9 e( ]
(setq ang588 (+ ang577 ang58))1 i, f2 u' s) _( \" o$ k5 j& i
(setq p57 (polar p2 ang577 (+ r1 r0)))
. ]9 `: a$ b. p( i, N8 e/ U (setq p577 (polar p2 ang577 r0))$ z, F5 L$ m+ S
(setq p588 (polar p2 ang588 r0))
) b$ c, o) E- U/ O$ [# z2 Y& x. V (setq p56 (list x2 (+ y2 h)))- J" a2 f3 D U/ @ \
(command "arc" p577 "c" p57 p56)9 ?/ Z$ e4 M! U
(setq arc1 (entlast))
4 ^& g3 J" [( F (command "arc" p577 "c" p2 p588)2 b8 n; ~- z. A
(setq arc2 (entlast))* E( e. ], W( [# f+ x, {
(command "line" p56 p5 "")
3 p7 j* m, R3 D/ z (setq L33 (entlast))
0 p- \$ J! O: h9 V7 @5 x (command "zoom" "w" p77 p88)/ y8 k: O8 _( m
(command "mirror" arc1 arc2 L2 L33 "" p2 p12 "")% o: j# ^# \2 W" E W1 W
(command "erase" arc2 "")- ?% n/ O; t' Z0 j1 |
) ;end progn
9 y; w; O0 V7 Q5 L& E9 ` ) ;end if4 I7 p1 N" c# A2 D, g5 Z7 W
;
3 o: ?6 C- f3 x% ~' L0 O! o% Q (setq beta (angle p2 p3)). }4 A* j: X8 g/ n, d
(setq ang2 (- (* angi 2) beta))4 @$ P! Q. a& o4 ]$ K- h2 l D
(setq p15 (polar p2 ang2 orad))
" i' l: h- _) }! ^- M (command "arc" p15 "c" p2 p3)" z4 b9 A5 g$ n: m$ n4 c. {
(while (setq le (entnext le))5 m8 M3 k' U5 D8 K( ^
(ssadd le s)
, d* R% S) b5 d )6 n% F# N' W2 w3 M% b, h* M$ f2 T; F
(command "array" s "" "p" p2 numt "" "")- ?/ C6 m% A! o- m
(setq q1 (nth 0 p2))
& I. O7 x; j/ L0 q5 Q- H, J$ f0 w (setq q2 (nth 1 p2))% O1 F* ^& {8 Y5 F
(setq q5 (+ q1 pitr 2))+ y5 E- P; v g( E7 O7 _2 r
(setq q6 (- q2 pitr 2))
! ~, {: e J" T9 M& W$ } (setq q3 (- q1 pitr 2)) i( K6 E% }* J# Q- u) W! m
(setq q4 (+ q2 pitr 2))
# ]) `" f1 J" M (setq q1 (list q5 q6))
+ X5 S; Q5 ^" Z. u* V* I (setq q2 (list q3 q4))5 A8 Q- A/ G6 l
(command "zoom" "w" q1 q2)
/ b9 K S! d& J) X0 m )
* }, r8 b% O% A) ~ )
3 B/ A" a w, Z0 o( D# L (setvar "pickbox" 5)6 [+ C) ]; Q) k" @3 u$ A
(setvar "aperture" 5)4 V" N& y4 k% D+ z: ^
(setvar "osmode" 37); A8 \5 U. j7 H& O% A) B# t
# z% d, V1 s. E) Q }! y
(princ "Finish gear "), n) ], D T+ U J
(princ numt)8 R& V0 x" Q5 `" E( ~$ }
(princ "T")
. }+ `4 d k& p% o (princ)
+ l2 T! V/ u6 A# W& ?; p )
0 Y* p3 ?! O4 Q. p" l# ~4 b' u
: Y# q1 M: Z6 V9 \7 ^ |