还做读书狼 发表于 2011-9-12 22:10 3 H8 \* R9 Y9 B+ A( X% g& | T
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 ...
( x6 l. h0 V& `% i/ |0 h(defun C:gear () N# r) K" g% F: b
(setq numt nil$ o+ V- Q. I* f2 t0 g& n
diap nil 3 s! d/ w/ @& t# \% P
prsa nil5 A) z6 i* A0 _! t6 p
pnts nil( u& H1 E7 q' Q
test nil* F# {, ^" X. \7 Z* G3 h6 @
pwd nil0 {+ {: n" n2 P# @) Q
) V! C! |8 O. z; C
6 s; @# l" o% t5 Y6 L
(setq numt (getint "Number of teeth:<24>"))
0 r: S' M; j, Y- O; o (if (= numt nil)
: H4 M' F4 e2 ?9 }8 S (setq numt 24)
# m' k2 p9 V- c \& E )
3 w& t% T0 d" R) ?3 f9 m9 A (setq diap (getreal "Modulus of gear:<0.5> "))
% i3 c4 l- I$ z4 x* g y5 F) [ (if (= diap nil)% X" o5 g2 S, d* A* L
(setq diap (/ 1 0.5))
" X4 X9 @, w% I$ h9 { (setq diap (/ 1 diap))
$ m3 w2 J7 @0 j t )
; k5 t6 t$ @+ U6 O, @- i: U8 A (setq prsa (getreal "Pressure angle:<20.0> "))* f8 ~ y: u7 [) ]8 s' G2 ]
(if (= prsa nil)/ I& W& f5 v9 {' c6 z& t* d0 V
(setq prsa 20.0)/ A2 V2 d6 M4 E+ z
)
% a% D( Y9 S1 m) [8 J (setq pnts (getint "number of points on curve:<40> "))2 n& b' w! f8 @6 ?1 g0 z' k6 A
(if (= pnts nil)
; n6 R: P& J1 r (setq pnts 40)% X" R+ r- i, f+ Q( f5 V/ Q
); K7 S! n+ _+ A' r' E: p; [
; (setq pwd (getreal "Please input password:"))
. d* W" D2 _: C2 D1 B! g; (if (/= pwd 8833)* b# m, y, D4 T; _
; (setq numt 0)6 B$ W3 @* E, S* k \$ Q, F: ^
; ); L# l5 C3 ]3 O% L& O
; (if (= pwd nil)3 O' Y! K/ a- ^/ ^5 Z
; (setq numt 0)
" G7 J. M4 F! C9 ^: b# b" D; )' p3 @9 M j! q3 K
;- m4 Q& j ?) B$ P0 X+ \
(command "osnap" "non")
2 g! c1 R! Q0 C Z4 `* ^ (setvar "cmdecho" 0)5 F8 v/ H; J3 {
(setq oldvar (getvar "pickbox"))9 b! E8 ^& I( m# G1 ?; W& N
(setvar "pickbox" 0)& u/ Y& X; `% g F
(setvar "aperture" 1)
* O8 Z8 W6 @6 u. R (command "osmode" "0" )/ t6 p5 r9 c$ @5 M2 P: w# O8 V
;, a G3 v# v6 \; c: r0 r1 j
(setq prsa (/ (* prsa pi) 180.0))9 P0 |5 d' c; A2 T& d& E8 L! O
(setq pitd (/ numt diap))* `& |. w% g1 v$ E% n/ i
(setq outd (/ (+ numt 2) diap))6 _0 N5 f! w6 p& i( S
(setq basr (/ (* pitd (cos prsa)) 2))$ l- z _( J% j x" j
(setq orad (/ outd 2.0))
) l a, Z9 i1 A7 t) ~3 Y. C# \ (setq z (- (expt orad 2.0) (expt basr 2.0)))
( E7 f2 _' X1 D" G (setq x (sqrt z))& g. l' C2 S/ |% m- n: O
(setq paodd (atan (/ x basr)))
" ?3 Z# r3 \# h( a1 K7 _1 e- t% u4 o (setq incr (/ paodd pnts))
. E5 H7 {1 i8 q: G (setq p 0.0)
d& r5 t) U8 o# e. H (setq pitr (/ pitd 2.0))) [0 v* g" J4 t; g: E! C9 f
(setq pang (/ 360. (* numt 4.0)))
* |. W& O" e5 R6 _ (setq pang (/ (* pang pi) 180.0))
1 n% c8 C8 Y# I) M (graphscr)
/ L- i7 U8 D) K, Q# G( ^: s9 I" h0 p0 R (setq p2 (getpoint "center of gear:"))
5 E/ K3 K/ P7 @1 h$ ~ (setq y2 (cadr p2))
( M+ {% e( q3 O+ Z" \2 C4 f (setq x2 (car p2))& I6 m0 J' z* R4 J
(setq r0 (/ (/ (- numt 2.5) diap) 2))4 P8 t* S3 u+ l) ~" y
(setq r1 (/ 0.2 diap))
0 H9 k! b+ w$ v& b0 P, T- H7 K; W (setq h (sqrt (- (* (+ r1 r0) (+ r1 r0)) (* r1 r1))))* q" ~$ h: O7 w5 f1 O. x
(setq ang0 (/ (* pi 2) numt))
[" U, @, n i (setq y5 (+ y2 basr))
, }! J; V$ @! X: ^* q9 {- J3 A- V (setq p5 (list x2 y5))# M8 }8 \4 j$ M* p/ s
(setq y55 (+ y2 r0))
9 j: C! N/ B0 p% s6 x O _" b (setq p55 (list x2 y55))
3 N( Z; g; T3 z* G3 s (setq p88 (list (+ x2 2) (+ y5 2)))3 C7 N% ~. V4 J2 z2 e
(setq a3 (/ (* pi 5) 4))
$ V% S0 s8 i1 p (setq a4 (/ pi 4))
3 f3 e' t: X3 f, D0 [- Y (setq pz3 (polar p2 a3 (* orad 1.5)))$ j: l0 \% `4 @' A
(setq pz4 (polar p2 a4 (* orad 1.5)))* v1 e4 _. {3 l X6 I
(command "zoom" "w" pz3 pz4)$ ]$ t0 g) @4 u2 }8 E7 J4 ?. f X
;
% u! v v7 }! o4 S1 D q3 p# E (setq clay (getvar "CLAYER")). ?% Y( `( W/ q% F# M- z) L
(setq sblip (getvar "BLIPMODE"))
6 ]* W$ M+ r2 W g* V (setq ts (tblsearch "LAYER" "CEN"))
D( F. |6 Q" r1 r (if (null ts)
) L& N, q# B" d1 ` (progn
" t. P9 h, R! I& c) q (prompt "\nCreating new layer - CEN. ")
0 l! K9 w% \- y3 f3 J# E6 i1 w (setvar "BLIPMODE" 0)
% f7 e# A/ F4 e& s# b9 v7 x (command "LAYER" "M" "CEN" "LT" "CENTER" "CEN" "C" "RED" "CEN" "")
7 s; F: O& t7 W5 F/ ^" l )
8 L8 Q$ H. m9 h5 r) C: l6 P (progn6 G1 @& J" @! L
(if (> (cdr (assoc 70 ts)) 0) (command "LAYER" "T" "CEN" "ON" "CEN" "U" "CEN" ""))1 _8 [+ O, x9 w' Z
(command "LAYER" "S" "cen" ""); T, q- |0 Y6 \& u. ]+ t: X- I
)
. `. u' \+ C& z/ |; i9 Q )' p. I- q4 i E! F; a$ L8 e
(command "circle" p2 pitr)" {( i: X8 n+ j3 I$ b
(setvar "BLIPMODE" sblip)2 k6 R3 ?' {+ M1 g3 @
(command "LAYER" "S" clay ""): S( u) u& F, f9 y% C
;" \0 T) @$ v7 ?' H+ C- T( p; v+ x
(setq a1 (- (/ pi 2 ) 0.1))
" m) i. u) \8 P8 L (setq a2 (+ (/ pi 2) 0.1))
8 z7 Q) L$ q) r( O/ k (setq pz1 (polar p2 a1 basr)): _. E) C; L+ N+ f% D: c% B" `
(setq pz2 (polar p2 a2 orad))
/ H8 o' p/ q; Z4 x (command "zoom" "w" pz1 pz2)
5 H3 F' L3 a: p$ t; ]( d (setq s (ssadd))
" R- o; S: S+ A& u8 m6 z) M (setq le (entlast))
+ P) C4 h* W4 ]0 f1 u$ b2 H+ f7 B (setq test 0)+ x( R( H* ?- g' ]& v- L! _
(command "pline" p5)
; Q; d I9 S8 M (setq p (+ incr p ))
1 o! g& o. K2 b' v- c6 B (while (> pnts 0)
+ ~# ?8 W. i% x' \0 X (setq e1 (sin p)): N: E$ p' W6 b9 H8 U# j: `
(setq e2 (cos p))
7 q9 A' N: v; h7 y- v1 o (setq e (/ e1 e2))( U! X2 {! Q$ y$ Y8 U
(setq j (- e p))
+ C0 x3 X+ j. o: Z2 y3 }3 P" s" t (setq x1 (* (/ (sin j) (cos p)) basr))5 _; \( g" T! D: U, o% t+ z# f: f- R
(setq y1 (* (/ (cos j) (cos p)) basr)); R( B/ h# U+ W2 g
(setq x3 (+ x2 x1))
( e2 {- o2 j* n1 F (setq y3 (+ y2 y1))
5 s2 v% a" f$ c (setq p3 (list x3 y3))
2 ^2 } b# @" e% `( n! ]" C (command p3)" x* J I1 k+ Q; V) g
(setq p (+ incr p))
; n" R3 N7 o6 l. M+ a7 D (setq pnts (- pnts 1))
1 S; w8 f0 a$ q/ r/ E. r (if (/= test 1)
" ?* c! L4 Z& r& [: p# G( { (progn
/ T* t* `7 \% m (setq hyp (sqrt (+ (expt x1 2) (expt y1 2))))
5 M. ^4 q' t; n# K. R4 H (if (> hyp pitr)( |) r# N d. }) \2 @1 {& H
(progn( Q* y% x& |% V9 Q8 R; q# d
(setq pint p3)7 _6 `6 k* z) v0 \* h* N, {
(setq test 1)" f4 E/ f( Y5 V1 m: m6 z5 P
)' D8 ?8 r+ o# E
)' ]- \& G+ r! C# }; ^
);endif
& E) a9 O# k2 o# T5 O7 p7 w );endif
+ ` N+ ~: Q- y) v6 L )
2 O) o B) u9 `5 U9 _, c (command "")
3 p, f, W% M1 b: j; @ (setq L2 (ssget "L"))
* D) `4 C4 u+ j; z (initget "Y y N n"); d t$ ?, |9 [5 c5 |
(setq ans (getkword "\n Finish the gear ?:<Y> "))1 {" P; Y0 G6 A
(if (/= ans "N")
/ N. i6 Y8 U0 m6 \ (progn) Y, J3 J% G# A. P. i- O) u6 a
(command "zoom" "w" pz1 pz2)
% I4 J, s1 {6 K1 f. g (setq p11 (osnap pint "inter"))
+ N! w& f- m& w/ k% X4 V% f (setq ang (angle p2 p11))
$ U' F' m7 E. D" g (setq angi (- ang pang))$ W4 P/ g2 e9 W1 n
(setq p12 (polar p2 angi 1.0))
* j t0 J: i9 [6 o! t" E+ L2 }( h;
. o% z. ^$ V8 F. i (if (< (* 0.94 numt (/ 1 diap)) (* h 2.0005))- h ~4 W% f1 t( o% q
(progn
1 u- p h, s9 }9 b (if (< numt 42), D$ m" t+ [" j, k
(progn
7 C0 n3 H& C6 G6 C (setq p56 (list x2 (+ y2 r0))): }( w2 B- J# b
(command "line" p56 p5 "")1 L& w) g5 p* p4 o/ q) S2 b
(setq L33 (entlast))+ l l! K$ @: a
(command "zoom" "w" p77 p88)
1 o: v3 h" K9 k4 E% N (command "mirror" L2 L33 "" p2 p12 "")+ z6 U# V j2 k3 @
(setq adj1 (- angi (/ pi 2))) ]. j! n- B* S( S# n3 _( B. Y
(setq adj2 (- (/ pi 2)(* pang 4)))
3 z" z* q* E# E# P' |+ Z (setq p17 (polar p2 (+ angi adj1) r0))7 x& w/ }5 {) ]: m
(setq p16 (polar p2 adj2 r0)) _4 d. i# V# o1 Z& {7 O4 p% x
(command "arc" p16 "c" p2 p17)6 g" S3 y' w f; j
) ;end progn. ^) |# ?) ~- i; d9 n$ H: B# w
(progn+ R. R3 r2 [( G# U% N7 o; O
(command "zoom" "w" p77 p88)
7 \/ r) O. M2 @1 \7 Q& E (command "mirror" L2 "" p2 p12 "")0 b+ @" Z$ I( {' U3 ^! ?& b' m
(setq pL1 (entlast))
8 x) Q# C q$ z* D1 A4 v" V (setq adj1 (- angi (/ pi 2)))
! p2 h" a# l1 U. |5 {7 @ (setq adj2 (- (/ pi 2)(* pang 4)))
( }, c4 c" p3 A/ @1 W! W (setq p17 (polar p2 (+ angi adj1) r0))
4 {4 n. ^' I- W (setq p16 (polar p2 adj2 r0))# S2 J( ]# f3 i9 n
(if (> numt 101)( P U6 g5 ?( o
(command "arc" p17 "c" p2 p16)
: n- R4 _& }1 r$ c (command "arc" p16 "c" p2 p17))- R: q; l( D/ X. j. s& Y
(setq arc4 (entlast))# b. {" C- s$ {' X$ _" F; _9 p
(setq p171 (polar p17 0.7854 (/ 0.4 diap)))
8 l# Q) ~2 B3 n" k+ T (setq p172 (polar p17 3.9 (/ 0.4 diap)))
, t% ?0 \ V* a (if (> numt 101) H H: F( n( S5 c* F* h
(setq p18 (polar p2 (+ angi adj1 ang0) r0))
3 U- E4 W' g8 ^+ ?, a( G (setq p18 (polar p2 (+ adj2 ang0) r0)))
/ {) K- m0 z3 b, e (setq p181 (polar p18 2.3 (/ 0.4 diap)))
& [" Q6 J7 O7 w; r+ K4 y (setq p182 (polar p18 5.5 (/ 0.4 diap)))
+ B7 s+ \' a7 Z' ~* p (command "zoom" "w" p171 p172)& P- T5 j5 q# h$ m4 u6 e
(if (> numt 101)
& R' j4 c9 o+ ]6 i+ `! Q4 d (command "extend" pL1 "" p16 "")
' k# @) f. p. j6 U% Z( i (command "extend" pL1 "" p17 ""))
9 i3 w) P. {& r0 B (setq ang0 (/ (* ang0 180) pi))
, J$ A4 M9 C' g' j! ` (command "rotate" arc4 "" p2 ang0). u: N2 q0 c4 g7 r1 y3 j
(command "zoom" "w" p181 p182)0 Q1 u' ]0 j5 g" _' G+ n
(command "extend" L2 "" p18 "")
0 E1 n; f/ e# s" M |/ S1 \ (command "zoom" "w" pz1 pz2)
' p" E) u! I! q, J2 N1 D (command "trim" arc4 "" p5 "")9 G( c) n) W1 k, d
(command "erase" pl1 "")5 m5 e! r; ]" z, J
(command "mirror" L2 "" p2 p12 "")
: k3 H( L" ~8 U. X# E' d ) ;end progn
! a" @) ], u& k5 V( i ) ;end if
& C, Q" j) O% g! Z ) ;end progn0 W, B" s9 D5 \$ t. S9 ~& O
(progn 6 v9 P' s& s% \; c8 L- T L
(setq ang12 (- (/ pi 2) (angle p2 p12)))
* I; x; Z% o6 d* @. c, n! X (setq ang57 (atan (/ r1 h)))' L7 D/ G T; v7 g. y S7 v
(setq ang58 (- ang0 (* ang12 2) (* ang57 2)))- m" l) C7 D7 s% x7 c; d
(setq ang577 (+ (/ pi 2) ang57))& {) c; K0 K9 B# q
(setq ang588 (+ ang577 ang58))4 P5 L$ A- T7 n5 W
(setq p57 (polar p2 ang577 (+ r1 r0)))
/ O B$ N% t; K1 c7 T& } (setq p577 (polar p2 ang577 r0))
! ~' P, J) Z5 T0 ~/ P (setq p588 (polar p2 ang588 r0)) 6 t0 t/ M+ B, ~! A7 ^. }
(setq p56 (list x2 (+ y2 h)))
) q! c4 Z ]% K# M (command "arc" p577 "c" p57 p56)
. q# w) f+ D& F7 H2 `5 ?& ` (setq arc1 (entlast))- t! ?# t, X8 z+ i
(command "arc" p577 "c" p2 p588)) \- L: S! c# d9 J6 U
(setq arc2 (entlast))
$ W; `. [* M/ R4 Y1 ~ (command "line" p56 p5 "")
( Z# [ X! v( H7 J; ` (setq L33 (entlast)); E" l! G( c7 c6 c
(command "zoom" "w" p77 p88)
4 J3 ?% T$ E8 Y0 |: A F (command "mirror" arc1 arc2 L2 L33 "" p2 p12 "")
3 I" S9 N: y* R* z% P8 Q J" ` (command "erase" arc2 ""). k& Q% {% |+ i8 y6 B ^) D
) ;end progn 2 i. r1 D: l7 V1 A
) ;end if
4 j7 v; {2 w) V. p4 A/ _;
: k, n/ h! T! u5 w7 Q4 \5 x (setq beta (angle p2 p3))
9 |" P5 _: ^* Q$ J, T$ m (setq ang2 (- (* angi 2) beta))( V6 I4 |$ N' s* l8 i+ R. G
(setq p15 (polar p2 ang2 orad))
, r8 |' {/ q0 I7 |! z (command "arc" p15 "c" p2 p3)
; g2 G8 R% V/ D" Q0 W; h" c, p (while (setq le (entnext le))
; K9 |1 q# Q. z2 ^$ E& n* t7 s (ssadd le s)
# Y! l6 f" J. i+ V )# }6 S2 l: a! ^
(command "array" s "" "p" p2 numt "" "")
( p6 b; R( U+ _* B; l/ g (setq q1 (nth 0 p2))
+ g2 u W! d5 ^0 q0 x1 n' w (setq q2 (nth 1 p2))
, o) M3 A& W% J (setq q5 (+ q1 pitr 2))* Y/ }* w& v$ ]* ]# p+ w
(setq q6 (- q2 pitr 2))
9 t* [: r7 q- x3 R (setq q3 (- q1 pitr 2))* f. e; K6 u% V
(setq q4 (+ q2 pitr 2))
$ h+ A# F2 i" Q0 o (setq q1 (list q5 q6))* [& n/ r& ?) x7 e0 ]" L1 A& f
(setq q2 (list q3 q4))
0 ?* n. C4 z- k0 v! A# n (command "zoom" "w" q1 q2)
" f: k- E- q8 R+ { J )) k+ Y% `- c U- h8 O
)5 j8 \$ M4 i8 N) C) L# W
(setvar "pickbox" 5)
n$ p4 t2 N/ n$ Q1 W (setvar "aperture" 5)2 v7 p; C) E: F, }* T
(setvar "osmode" 37)
3 V5 o, a- |7 ^2 W( E% p
4 l e h$ v1 U (princ "Finish gear ")
4 X4 z! Q. s* W+ [# w8 S- R (princ numt), ?4 f8 ^1 W+ L# y7 I( [
(princ "T") [' O" t, p8 H! v2 E
(princ)# u( w- I- i, b+ y! y7 y+ `; J
)+ z2 x1 s2 `7 u8 E( \
! R% n' w% A# Z+ A) r7 P
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