还做读书狼 发表于 2011-9-12 22:10![]()
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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 ...
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(defun C:gear ()
9 {, W) n4 ?" c(setq numt nil
: ]7 A/ V9 v, i( o- d4 a _1 N8 \/ F, Zdiap nil
, b; g( S/ g0 Z; } Q7 E# \) Zprsa nil9 C4 C* J0 T5 e" T% O
pnts nil
1 D; c) Y3 B6 C/ i1 J8 b3 o1 d7 w/ ltest nil
7 O& M) [- t6 p0 Jpwd nil, e: r$ a' j. E* I
)
' Y. X. m0 a1 f6 t* Z2 @. j1 m ]2 a p7 {/ V8 V2 F
(setq numt (getint "Number of teeth:<24>"))( [* k" \; p, m2 o+ E/ I/ l8 }
(if (= numt nil)
4 Y" p- W/ h/ i3 C" g4 }0 T( P(setq numt 24)
$ X' N' t. z. c7 e' o: t9 Y)7 O Z6 W4 H3 Z1 m
(setq diap (getreal "Modulus of gear:<0.5> "))
' M/ A* J, _+ H( I- ?" c) t5 s0 V(if (= diap nil)
% s; D+ }, r- C9 I; \(setq diap (/ 1 0.5))8 Y- X" Z" H! ^( x G
(setq diap (/ 1 diap))) V: x& I2 Y8 D/ S
)! {+ Y" C0 j+ c1 P6 W2 ^! d. s6 r
(setq prsa (getreal "Pressure angle:<20.0> "))
* i1 g( ?, z, s(if (= prsa nil)0 Z2 |2 \ t8 o) G/ O* S
(setq prsa 20.0)7 o5 _$ P$ D( b( o6 s& e
)
5 o3 K! i- T7 K3 q g(setq pnts (getint "number of points on curve:<40> "))
3 Z. @* @7 k- E(if (= pnts nil)
2 [" u7 ]" |. X2 }2 V* _: Q(setq pnts 40)
2 Q( g* q- Z( b- \& u6 f/ l3 B. V)- q8 R5 U/ H! t
; (setq pwd (getreal "Please input password:"))
: ?4 m* A# L9 u! W/ ~; (if (/= pwd 8833)
. T+ y) P# U) k4 J5 i2 B; (setq numt 0)
5 P, V. {/ B3 L* B; )
" x- U% y9 I- x- c; (if (= pwd nil), z+ L; H! g T( x& p5 Q
; (setq numt 0)3 q# Y3 a, _' C6 N* ~2 |! N# e
; )1 ^( I+ s3 @3 b# S
;/ J5 x6 c' @- o% x8 X) D
(command "osnap" "non")0 \9 ?/ U. M \0 r$ n3 R5 F8 u
(setvar "cmdecho" 0)
9 }# C. u0 f. n(setq oldvar (getvar "pickbox"))
8 Z5 r6 W8 ]" V* [8 X) O(setvar "pickbox" 0)
: F3 g# z" w& D(setvar "aperture" 1)& W0 J- J b& l# y" S5 G5 N8 y
(command "osmode" "0" )
# b0 ^$ k9 r8 y0 D8 g9 F( u9 | s8 o;
0 A' b* W0 M3 @1 N+ u4 U4 d" ?( H- y(setq prsa (/ (* prsa pi) 180.0))1 x8 u4 t* K0 ^. ?( z% U ~
(setq pitd (/ numt diap))
1 s6 D/ V: m! B! ?4 H7 m(setq outd (/ (+ numt 2) diap))
7 d- ^9 F1 U1 v0 A" m6 ?# J9 @(setq basr (/ (* pitd (cos prsa)) 2))- w$ c4 {4 r$ G- t# D
(setq orad (/ outd 2.0))
! H' T- o8 J0 X(setq z (- (expt orad 2.0) (expt basr 2.0)))
6 H7 Z; N- R" Q3 L1 E! K) T(setq x (sqrt z))
/ ?, d8 e5 J# [8 C; ?* d(setq paodd (atan (/ x basr)))
) U" V5 R, z" T5 V4 N3 [. J8 S(setq incr (/ paodd pnts))
# i% A0 z) f; Q o(setq p 0.0)
5 P# Y/ E' x) |* j(setq pitr (/ pitd 2.0))
$ F. ?) Z7 a9 f$ O4 ?: u7 l" M(setq pang (/ 360. (* numt 4.0)))& S4 S, W3 R, ~7 g7 L( [: v
(setq pang (/ (* pang pi) 180.0))
4 w5 {; J& i" T9 a9 A/ |(graphscr)! a% |1 u1 n; G+ G5 Y; q! |
(setq p2 (getpoint "center of gear:")): Y9 N$ I( q% V
(setq y2 (cadr p2))B6 l) K! s/ _; g
(setq x2 (car p2))
' B" W8 R2 d, \& l$ @(setq r0 (/ (/ (- numt 2.5) diap) 2))& ^! ~1 T5 _6 [& r2 N
(setq r1 (/ 0.2 diap))% K" H; o: b4 F; u9 q* W" ~
(setq h (sqrt (- (* (+ r1 r0) (+ r1 r0)) (* r1 r1))))5 c/ ]9 K r/ R) @$ z2 P; b* o- G4 H
(setq ang0 (/ (* pi 2) numt)), P9 `: p& i$ Y# V( P7 U4 Q
(setq y5 (+ y2 basr))
' K% p( l# V" T% a, j) A; ](setq p5 (list x2 y5))
: h; \/ N: _- k# E/ p; o$ r% X(setq y55 (+ y2 r0))
0 ]1 b. _/ q- R2 D- P4 K% U(setq p55 (list x2 y55))' u, m/ |- E- j
(setq p88 (list (+ x2 2) (+ y5 2)))4 K5 L8 v: }' A- O4 b: R
(setq a3 (/ (* pi 5) 4))& ^1 P u9 n, N0 c/ m
(setq a4 (/ pi 4))7 i" [7 l, o1 d- _: N5 K- L
(setq pz3 (polar p2 a3 (* orad 1.5)))
7 V4 A# j2 d: ]3 p(setq pz4 (polar p2 a4 (* orad 1.5)))2 l5 s w! G+ k+ R8 Z5 u
(command "zoom" "w" pz3 pz4)2 Q8 Z4 D2 w* t/ h: {) K/ [( v3 {
;/ ]$ Z5 e+ p8 N/ J2 j% N
(setq clay (getvar "CLAYER"))
6 | V0 w: ~! k! b& v; ~(setq sblip (getvar "BLIPMODE"))
$ B; J% K* w3 V(setq ts (tblsearch "LAYER" "CEN"))4 g( s* X8 w7 M; Q% ^
(if (null ts)0 h, F0 z5 V( L7 K" F7 a
(progn6 P* K0 W. }4 u
(prompt "\nCreating new layer - CEN. ")
: N# ~, C! T3 C0 x9 s- U(setvar "BLIPMODE" 0)
; b* X/ @2 C' h% i(command "LAYER" "M" "CEN" "LT" "CENTER" "CEN" "C" "RED" "CEN" "")0 l' V3 |) O, j# `% q) n
)' x+ K) i: M' L$ o
(progn
. I. o& F; x1 W# a0 z1 {, h3 M' c(if (> (cdr (assoc 70 ts)) 0) (command "LAYER" "T" "CEN" "ON" "CEN" "U" "CEN" ""))( y% X3 j2 ?# `& A2 j
(command "LAYER" "S" "cen" "")1 }! ]5 p1 d; l) b2 R
)
- ~5 a4 ~# [1 m/ k)& ]/ k$ \- q9 o! m) X5 W
(command "circle" p2 pitr)
P8 ^0 L4 A: K4 v% ](setvar "BLIPMODE" sblip)
; T* g; Q% J& }& U0 }6 n(command "LAYER" "S" clay "")& A5 ]. e0 w, s1 d% ~0 c
;
. X( a t( P1 O1 Z1 Z(setq a1 (- (/ pi 2 ) 0.1))
8 U, ~" u4 h% `$ C; p(setq a2 (+ (/ pi 2) 0.1))
$ D( x% _4 P- N& @7 g f! l(setq pz1 (polar p2 a1 basr))
6 b5 U4 u: N1 _% J1 W/ h, E# l- w(setq pz2 (polar p2 a2 orad))
) {& g# o( Q4 d' w( m& X(command "zoom" "w" pz1 pz2)
, R! p; `8 s- g/ `/ U(setq s (ssadd))% B/ g' K, ]' H9 e8 G
(setq le (entlast))7 N8 F+ K/ j' ]$ @; {
(setq test 0)0 @/ O& i3 L- g7 z% r9 H
(command "pline" p5)2 j+ P3 r3 ^. T$ N7 }8 N' P p
(setq p (+ incr p ))& K( S2 F# @7 I! U4 ] Q* Q8 b
(while (> pnts 0)( R5 `. o: r8 y2 X2 u
(setq e1 (sin p))
' _% L4 x- t% Q(setq e2 (cos p))0 d& s) b3 m4 I6 E
(setq e (/ e1 e2))
: T: m' _! b, L: j5 o' t4 `' T(setq j (- e p))
5 P! r% c0 }' p1 D% j( X0 y" \(setq x1 (* (/ (sin j) (cos p)) basr))$ u. ?+ A4 n* R* s( }! `
(setq y1 (* (/ (cos j) (cos p)) basr))
( y' z" S2 u0 ^(setq x3 (+ x2 x1))
, c# j x8 I$ }0 w+ Z7 q% L(setq y3 (+ y2 y1))6 I& {' {8 s% N
(setq p3 (list x3 y3))
7 Z2 i* W- Z; a0 L(command p3)& o, u6 P7 | a9 I1 L
(setq p (+ incr p)); z+ E2 G: q+ o5 H0 l4 @* ?
(setq pnts (- pnts 1))6 Y! g2 S- X7 k9 I5 o! X- j
(if (/= test 1)" F, [/ H# Z+ ^3 M0 E
(progn. j2 t, u" T8 |+ [; S$ Z
(setq hyp (sqrt (+ (expt x1 2) (expt y1 2)))). F6 \: B$ ?+ I- {! @ T4 X- ?7 G, D. X
(if (> hyp pitr)( K8 t/ Q. u9 c' I! X
(progn, i5 s0 [% V3 ]! e; X2 k$ Q
(setq pint p3)
& \- S$ x5 R- Q0 f(setq test 1); P+ `( k @4 @8 m1 F# G/ b
)
R2 n% _9 P" g)7 A, V2 e2 O4 C' @" ^
);endif
0 r* y+ O. p8 P6 W0 p+ M: E);endif+ `. b7 |# `* v7 X: A% A6 B7 q
): L" q. U( a5 G1 C3 y
(command "")
1 ?8 |1 x: R2 Y) o(setq L2 (ssget "L"))
9 K! m1 Q1 c' i(initget "Y y N n")
. Q l9 y; @ G8 q(setq ans (getkword "\n Finish the gear ?: "))
' `) E* t, l% v+ B- T: F% R(if (/= ans "N")
5 t8 c/ ~5 n* `7 j6 w1 p# _) r" P F' G(progn
; d& v8 T ^: ~! D; G( _4 N9 V* l( f(command "zoom" "w" pz1 pz2)$ ^7 Q4 q1 }8 \3 O$ r1 j
(setq p11 (osnap pint "inter"))5 o& n' Z/ B a4 m1 A. @
(setq ang (angle p2 p11))" ^; X; E4 q/ I P; G- L9 Z
(setq angi (- ang pang))- k4 E: |- p2 D6 {0 f
(setq p12 (polar p2 angi 1.0))
# T) t) W1 ]- k+ M( l* u$ J;/ U2 B% t7 v; m! P" o4 \7 h
(if (< (* 0.94 numt (/ 1 diap)) (* h 2.0005))
! \* _/ ]* t; \0 L- x4 f4 n(progn
6 v! o" c, c9 G" }+ w6 ^7 b9 m(if (< numt 42)
) [# [% D8 b, m% i(progn
3 L" H6 X' r! j% l# L C(setq p56 (list x2 (+ y2 r0)))1 X2 R+ U/ }% H( k! {
(command "line" p56 p5 "")
H, w0 K; l5 b5 G2 s& H2 }5 `! r) V* O(setq L33 (entlast))
4 [3 C+ C0 n O3 [' { S4 A- L(command "zoom" "w" p77 p88)
3 M& w9 N1 [# B; f9 w7 Y+ q' g( _(command "mirror" L2 L33 "" p2 p12 "")3 ?" t% G% M3 n5 y$ h$ n' C" }
(setq adj1 (- angi (/ pi 2)))5 l5 e' m2 W7 D, l0 x9 Y
(setq adj2 (- (/ pi 2)(* pang 4)))
1 J q5 w( Q: f( q2 ]- J( z" T! K* x(setq p17 (polar p2 (+ angi adj1) r0))
" b+ ^$ q8 J+ i+ W1 X% m(setq p16 (polar p2 adj2 r0))
( a! d& n! w2 ?, k(command "arc" p16 "c" p2 p17)
2 [) n" V1 E7 n5 j( e3 P) ;end progn
: \& l6 \; ~- |( e N(progn2 C# Y6 O2 u; q5 q+ }* {" k
(command "zoom" "w" p77 p88)5 ?8 |5 Q1 r; j; a# ]
(command "mirror" L2 "" p2 p12 "")
; d4 `2 |/ [) F1 Z(setq pL1 (entlast))( K+ P, \5 _5 u( K5 q+ w
(setq adj1 (- angi (/ pi 2)))7 [$ V2 d( I: F; `0 c+ O
(setq adj2 (- (/ pi 2)(* pang 4)))
" M# x4 T ~" [/ J(setq p17 (polar p2 (+ angi adj1) r0))
2 b; H7 V- Y' N2 B1 ^(setq p16 (polar p2 adj2 r0))
5 {7 |+ m1 b2 c% W) f g(if (> numt 101)/ b8 Z7 ^# [! Z& P% k* x9 A1 E& H
(command "arc" p17 "c" p2 p16)3 ~0 D5 L/ }. H% y, `$ x
(command "arc" p16 "c" p2 p17))# H7 |/ y6 R6 _: W; Z3 q2 K
(setq arc4 (entlast)). X& X% ]$ G0 B( D
(setq p171 (polar p17 0.7854 (/ 0.4 diap))): S# i6 E* X" N1 y4 h2 M
(setq p172 (polar p17 3.9 (/ 0.4 diap)))! R% W- k! a' [* ~. L' _
(if (> numt 101)) i9 i/ R( S+ r* |, W4 q. r
(setq p18 (polar p2 (+ angi adj1 ang0) r0))/ v J, {! ~ r* Z3 Y5 `5 M9 g8 i
(setq p18 (polar p2 (+ adj2 ang0) r0)))
. ]6 C( X# e3 l7 s, d: x* x# k(setq p181 (polar p18 2.3 (/ 0.4 diap)))5 N% i6 T5 H5 t; y
(setq p182 (polar p18 5.5 (/ 0.4 diap)))
. |$ u$ [# {5 D(command "zoom" "w" p171 p172)
7 r7 u9 S9 Y! Y% Q$ q' U" W- ]7 Y(if (> numt 101)% M4 a ^2 |* y% B9 n3 t6 F2 Z
(command "extend" pL1 "" p16 "")
" p: l& ~4 s* I2 `9 C" ]% }(command "extend" pL1 "" p17 ""))
4 H3 {5 G/ n% w8 a% H. X6 }& v9 p/ Q, v(setq ang0 (/ (* ang0 180) pi))
+ m$ d1 F% N" i(command "rotate" arc4 "" p2 ang0)( @+ E/ S2 j$ Q1 h, X: f9 @6 F- l" U
(command "zoom" "w" p181 p182)1 G% N4 I7 O( [7 v$ s' b
(command "extend" L2 "" p18 "")! E$ K* K# W8 \ J& J3 t- |9 D
(command "zoom" "w" pz1 pz2)
2 w0 _ d( g, b# l& r: \(command "trim" arc4 "" p5 "")
: t1 z: S7 C7 E k U(command "erase" pl1 "")
; E2 ?: g8 f# ]" C2 d( \(command "mirror" L2 "" p2 p12 "")- M' g' L4 M! r! g1 D7 b& K
) ;end progn5 v0 `6 _$ A5 K$ P
) ;end if2 m8 H7 |# y' L% K3 R. Y' t6 b
) ;end progn8 k/ f& G* s) O) o2 r7 S/ c, j
(progn- Q& `: l7 c9 v
(setq ang12 (- (/ pi 2) (angle p2 p12)))
/ A+ e' i+ u' q% K(setq ang57 (atan (/ r1 h)))
7 Q, _& l; B2 Y) t(setq ang58 (- ang0 (* ang12 2) (* ang57 2)))7 U, B2 d/ \7 U# ~% O ?; U
(setq ang577 (+ (/ pi 2) ang57))
- Y$ B- x* I9 \1 F0 C, B(setq ang588 (+ ang577 ang58))& {7 e3 W% l5 ?9 a0 N
(setq p57 (polar p2 ang577 (+ r1 r0)))/ S2 g/ `( J. O& }9 r4 z2 ~ r
(setq p577 (polar p2 ang577 r0))
6 g& J) N2 Q- C8 x$ Z% k& v(setq p588 (polar p2 ang588 r0))
7 C7 k2 b/ _5 ?' u/ w(setq p56 (list x2 (+ y2 h)))
7 y& L8 B( i: Z+ ^(command "arc" p577 "c" p57 p56)
+ D/ r$ n4 p9 o0 r3 J7 f- l(setq arc1 (entlast))
; R& |) P+ l2 ^ u1 ^) D5 q(command "arc" p577 "c" p2 p588)
) M& t5 B6 @6 ~: Q V6 W' g5 M(setq arc2 (entlast))
6 Z( |3 N* q/ `* c7 T(command "line" p56 p5 ""). c9 O8 ^2 ^+ y, T6 U
(setq L33 (entlast))2 b1 F2 j) m9 }6 r- ^4 N7 O. y
(command "zoom" "w" p77 p88)
& w2 o. X3 o4 O3 w(command "mirror" arc1 arc2 L2 L33 "" p2 p12 "")
) e- ^8 l0 e+ t" x Y u(command "erase" arc2 "")
3 n: j2 @1 [+ @' G& J5 f4 d3 O0 I) ;end progn' i- P3 Z5 ?% ]& p8 J+ B0 f
) ;end if& r& Q$ R; T8 X. Z6 K, B1 t1 y
;
: C3 F( U# M, a1 }(setq beta (angle p2 p3))! C. V! K+ v& S2 H5 S- Z
(setq ang2 (- (* angi 2) beta))0 ~# U7 N8 X- p8 n" _, o3 I: A& L
(setq p15 (polar p2 ang2 orad))4 G& O; a9 ]9 J. S+ r
(command "arc" p15 "c" p2 p3)
$ o5 Z, F8 `( e' q" J& K/ A! f(while (setq le (entnext le))
% o. y' O: l n- J(ssadd le s)
6 Q5 S$ y7 v" ?8 j4 _) w)
) W; `" l, i+ c: R: D7 `(command "array" s "" "p" p2 numt "" "")
9 S# g. |7 y" l4 q6 R, h; W; Z(setq q1 (nth 0 p2))
$ {- U$ ?! e; S: z0 b(setq q2 (nth 1 p2))- B1 K/ F& d" y* B2 z t8 n
(setq q5 (+ q1 pitr 2))
7 p" B6 R9 s* |; S/ b(setq q6 (- q2 pitr 2))N/ J, X. b9 T9 \9 Y6 Q
(setq q3 (- q1 pitr 2))
. X% _' Q/ O6 n& \6 ?# \(setq q4 (+ q2 pitr 2))
9 T( m8 ?9 \7 H* f3 r' T* g(setq q1 (list q5 q6))
( J9 h6 M* O+ e: H4 @(setq q2 (list q3 q4))
) z+ B7 s. t ^6 d8 O4 ?7 C(command "zoom" "w" q1 q2)0 v$ B, T9 ?) Q5 i5 T
)
% \- ?: O) W( t/ ^): S& l2 L7 T1 z+ v P: O4 N1 O
(setvar "pickbox" 5)
: E) x) t/ o7 d- z- R8 h5 J(setvar "aperture" 5)
7 Q! o# } L& G(setvar "osmode" 37)0 |, p# i' w* O- G+ V
p$ z8 r1 ]" r1 [8 S(princ "Finish gear "): F t2 e# ~* l2 s& R# [! a
(princ numt)
9 x5 X6 C$ d9 e4 j5 y; C(princ "T")
# ^* C5 q2 Z# P' L. R) F(princ)7 n5 A m: H& R* c L3 E
)( q" J* s' H0 F; B5 n' U
* [3 @0 X G4 a+ u3 z |
发表于 2011-7-14 14:00:11
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