(defun C:gear ()
4 Y' _1 z7 e$ T0 d3 } v& K5 R. f (setq numt nil
7 x$ _, C9 q# \( X" ~* R9 v6 `) P1 w7 Z diap nil , p1 n/ P8 X' D; a/ }/ u6 H4 R
prsa nil
! ~5 Z h$ {% ~' v( w7 _; E pnts nil
$ k: J" u. [5 t" [! z test nil% T1 c6 l- ?3 }
pwd nil. D7 C. @# R E p( |
)) @& T/ V- I1 f, v, u( e
, w* j5 G u7 P, D5 b4 z (setq numt (getint "Number of teeth:<24>"))9 B$ f) D, s; H2 J6 x
(if (= numt nil)* ?4 Z1 c. x# @! l
(setq numt 24)
' Y9 r( k: W, e, m )
& Z( a0 |" P7 ^& y6 r (setq diap (getreal "Modulus of gear:<0.5> "))& X5 z. k. m8 _9 ?7 n" d
(if (= diap nil)5 f4 F& z. z9 E+ a" W+ \/ N
(setq diap (/ 1 0.5))
! h% X, H! B% _: {0 w9 | (setq diap (/ 1 diap))
" l* G9 l( R% H6 }0 K% F/ Q2 i8 A$ ^% y )" |- s! M7 c4 z" S6 B
(setq prsa (getreal "Pressure angle:<20.0> "))
: _9 O3 v" E8 V1 ?; }5 _ T (if (= prsa nil)
, z9 G9 `. h3 y9 ~* ]% ?8 x: b (setq prsa 20.0)/ j0 p3 K/ W0 Q# m
)8 \- e6 `+ m! H% g( E% ~" A7 C) W
(setq pnts (getint "number of points on curve:<40> "))! K7 `; Y6 ^$ h8 I9 |
(if (= pnts nil)
# V% B! n- `7 X6 M+ z (setq pnts 40)
, o2 t# y. z6 C8 D8 o0 |! b ), j, w% o+ a! z7 R
* t; X; ~2 ?6 c! [0 r3 N* ~
; (setq pwd (getreal "Please input password:")): F0 }- h) I. G
; (if (/= pwd 8833)
4 ~! U- F: M$ R- Q) ^8 y* D; (setq numt 0)4 u9 g( M7 E! q8 t! m6 Z
; )
- J# H3 T! ]' Y3 X; (if (= pwd nil)
9 m4 g$ n1 _' [; (setq numt 0)/ }+ {- T6 ^; G) A* c6 @8 p
; )0 i& k. h, ` ~% t( V
;: t% f6 M: y4 f( r% @/ Y, U( b
(command "osnap" "non")
9 I- ^" r. a# d; |" w& i/ d c (setvar "cmdecho" 0): o' A5 t. A+ U$ H. l, d9 r, t
(setq oldvar (getvar "pickbox"))4 j( o9 I% M; ?4 v# `, ]! N
(setvar "pickbox" 0)( M' I, L( x7 O U
(setvar "aperture" 1)
% y1 i/ q! d: p( P. r9 \0 `, `* f (command "osmode" "0" )
) A0 L2 f' s; _3 q ?;# c- N3 A8 i% P! t5 U+ F
(setq prsa (/ (* prsa pi) 180.0))* Y; O2 k9 z3 m. G0 {
(setq pitd (/ numt diap))
2 U- z6 U% Y2 w6 [9 ?% s, g (setq outd (/ (+ numt 2) diap))
# P2 F! H: B3 o' Q7 W4 w7 a (setq basr (/ (* pitd (cos prsa)) 2))
6 i& `- c7 M! f) q6 F6 D (setq orad (/ outd 2.0))9 B1 N, O9 P) l1 V6 D/ V8 d
(setq z (- (expt orad 2.0) (expt basr 2.0)))* }+ n" l4 S R5 E9 N
(setq x (sqrt z))
, ]. A8 u3 V/ c9 J (setq paodd (atan (/ x basr))). R. Z1 R$ M% ?7 O) d! k. U- `
(setq incr (/ paodd pnts))0 Y: z& t5 h' k/ M$ n% [3 S
(setq p 0.0)
% o1 h% m, t: s- l F$ }( ~2 @: N (setq pitr (/ pitd 2.0))
\" O' N' W% ?1 W1 L$ S: p2 J (setq pang (/ 360. (* numt 4.0)))* l& r6 Q# s% b: e
(setq pang (/ (* pang pi) 180.0)); `1 z+ u) n U M. J& {
(graphscr)
: T: s8 ?, I2 v- J# { (setq p2 (getpoint "center of gear:"))' U; l# J& ^! s" t
(setq y2 (cadr p2))
, r' l+ U$ r7 K9 R. K0 e. s2 Q (setq x2 (car p2)): h t: s! H* b6 j
(setq r0 (/ (/ (- numt 2.5) diap) 2))
; N. O7 H# L6 f) W (setq r1 (/ 0.2 diap))0 v8 @' m+ [) ?) X7 C" z+ P- p
(setq h (sqrt (- (* (+ r1 r0) (+ r1 r0)) (* r1 r1))))% G& v! ~7 p& x$ D) s& l1 R
(setq ang0 (/ (* pi 2) numt))
, P9 t+ w& J* |7 y/ M5 Z
. A2 z8 |1 @& L (setq y5 (+ y2 basr))# j: ~1 n# }- ~1 p7 E
(setq p5 (list x2 y5))+ G' z# F* o. v% c4 p8 e3 z
(setq y55 (+ y2 r0))0 l8 L7 X$ c, |# |4 I# c, ]
(setq p55 (list x2 y55))
& ^' h. X S% q4 [+ l6 @# B (setq p88 (list (+ x2 2) (+ y5 2)))
o/ B+ U; v& S: q" @( n) W4 W (setq a3 (/ (* pi 5) 4))) U- S) K! N& s" C0 G, S
(setq a4 (/ pi 4))7 k7 d% ]% n# {6 a: y
(setq pz3 (polar p2 a3 (* orad 1.5)))
8 P; G% @3 H8 g/ E& p (setq pz4 (polar p2 a4 (* orad 1.5)))! \$ J$ ?% j) o. ?# u$ Q
(command "zoom" "w" pz3 pz4)
7 f" ^- O" d/ v" p- ^3 t;
{# E1 b' E4 z (setq clay (getvar "CLAYER"))
( _, V. b. v& [/ |& f9 M (setq sblip (getvar "BLIPMODE"))- @, u& Q7 R6 g, h0 o7 {- h
(setq ts (tblsearch "LAYER" "CEN"))+ @9 o* B% P5 A. ]1 Q3 w: F j
(if (null ts)* F2 U$ X! u; ]1 \
(progn2 @6 N# J7 Z" t6 r* N: ]
(prompt "\nCreating new layer - CEN. ") 8 \- { L- Y1 @5 h2 @
(setvar "BLIPMODE" 0)
/ ?: a5 t `' G+ g* A (command "LAYER" "M" "CEN" "LT" "CENTER" "CEN" "C" "RED" "CEN" "") 9 ^! P, @& C/ U1 c0 e' I& ]5 ~# C
)6 S2 K4 X% w4 g! R7 n
(progn
3 r4 {! n4 g, l (if (> (cdr (assoc 70 ts)) 0) (command "LAYER" "T" "CEN" "ON" "CEN" "U" "CEN" ""))
- D+ h, d/ E' d7 w8 S (command "LAYER" "S" "cen" "")
, g$ b; B8 ]) D# i( J) a )% p, J. W4 Q, R v8 l* Q: u
)% e+ S: A% R) j
(command "circle" p2 pitr)
9 Y" Y7 r% |, d, M4 }( O1 B# ^ (setvar "BLIPMODE" sblip)
l6 Q' n, p- \0 D+ ]* D3 a (command "LAYER" "S" clay "")
9 c6 s# j' F. g8 {;% `+ z& g9 h ]/ r5 W( x
(setq a1 (- (/ pi 2 ) 0.1))
6 @3 y$ h7 v# C% K6 h: `4 M (setq a2 (+ (/ pi 2) 0.1))
4 x& ?5 C# d/ Z( s (setq pz1 (polar p2 a1 basr))
1 T4 H! m& `- I! A j$ W (setq pz2 (polar p2 a2 orad))( M: u3 Q8 c/ L
(command "zoom" "w" pz1 pz2)
3 v& R, t% A7 S | (setq s (ssadd))
' X* V. ~! \3 [/ i1 w9 p: d (setq le (entlast)). v: |+ J7 m2 b9 n$ }
(setq test 0)
, k4 A! X" `0 h. f6 f$ p' d, D; f3 f4 B( {1 X0 k; K+ s) j8 r) _
(command "pline" p5)
1 G( Y V" x3 O5 J) l& V (setq p (+ incr p )); |$ b9 S( l3 A- I7 Z
(while (> pnts 0)
O' Y( n& S1 X- F$ R/ U (setq e1 (sin p))
% L1 M3 P! m+ J& e6 o m/ H (setq e2 (cos p))
) O2 k/ D1 F; H# `3 q7 _ (setq e (/ e1 e2))
5 D% J, M. Z- c" ~; Q (setq j (- e p))
/ [# O- h$ q7 J& d( l8 j& L: S (setq x1 (* (/ (sin j) (cos p)) basr))( Y ?6 o" s% r( n0 C8 A
(setq y1 (* (/ (cos j) (cos p)) basr)): G9 m8 a0 C: n% ~' C
(setq x3 (+ x2 x1))4 `+ p* a3 `0 Q: n
(setq y3 (+ y2 y1))! w( Q" _% H% i7 L W, P, _
(setq p3 (list x3 y3))& | v1 m6 s- ?
(command p3)! S( f; v! b( a" M: g0 I
(setq p (+ incr p)). @, y, `* [: v) p6 T. a
(setq pnts (- pnts 1))
" C& H) F% x$ N$ y" M2 ~; ~ (if (/= test 1)
6 D3 i7 @* p L; ^: M% L( K (progn9 L& }3 M/ Z) A
(setq hyp (sqrt (+ (expt x1 2) (expt y1 2))))! p Y0 i s# P' H% X
(if (> hyp pitr)
: ^# s1 O& d3 L& O6 Z1 w (progn9 ^4 A: ~: J9 T- Y( q+ x
(setq pint p3)$ \4 I( x0 w% E7 F2 ]% ~
(setq test 1)
1 B% h( b t) ]6 v; l+ L T )5 C1 G) M- Y1 A+ g
)
3 ?! U% h9 ]$ V5 f5 Y0 @ );endif
# @" m$ [7 g% w: @& m );endif
5 x) U2 X, ?" i1 w ): W" p, K8 ^1 T9 q6 J9 U/ w0 s
(command "")* k5 |3 J5 v' ^: Z( }
(setq L2 (ssget "L"))
5 t6 _- y* I* I" T (initget "Y y N n")) f# X1 p" t$ r
(setq ans (getkword "\n Finish the gear ?:<Y> "))
8 [; D$ }7 M+ w (if (/= ans "N")9 B S& B+ W. z
(progn% a7 s6 S5 p a3 r1 M! i4 p; M
(command "zoom" "w" pz1 pz2)% L+ U4 `! G* L1 c1 V' Z3 w
(setq p11 (osnap pint "inter"))
; a) a) f8 W6 S) y+ W" i; {; G4 `" _ (setq ang (angle p2 p11))
* Y4 J9 u3 t3 K5 b6 w (setq angi (- ang pang))
3 J$ ?' k: U6 H ~4 K9 k (setq p12 (polar p2 angi 1.0))) I: q/ \, ?; ]3 s" F4 K1 F
;
" Z6 `. Z1 Z# c% |9 _4 J! h (if (< (* 0.94 numt (/ 1 diap)) (* h 2.0005)): a2 J; R+ E" d' e$ j+ H) o
(progn
1 N' c/ N) _' w1 t' s! \ (if (< numt 42). e( m1 k; T$ b* y0 i7 I% s- ^: v
(progn/ Q7 [4 A& Q( h4 t! @/ f! q. a
(setq p56 (list x2 (+ y2 r0)))
6 U. d$ b9 I3 S3 S (command "line" p56 p5 "")/ x9 ?+ s; ~9 U
(setq L33 (entlast))
6 E6 i% C/ Y$ u% ]6 u: S (command "zoom" "w" p77 p88)5 D% q+ P# S. g. m% A x9 `) s
(command "mirror" L2 L33 "" p2 p12 "")
$ j& {1 f, e5 a% S2 x# e9 U, A (setq adj1 (- angi (/ pi 2)))
: {% K4 ~! | b/ H! h+ z* F0 F (setq adj2 (- (/ pi 2)(* pang 4)))
3 r1 U$ P9 J% u" B! u7 G (setq p17 (polar p2 (+ angi adj1) r0))
' T5 y ?1 D. b+ ]+ I0 m (setq p16 (polar p2 adj2 r0))4 e/ d! K% _9 A2 q4 E7 \
(command "arc" p16 "c" p2 p17)
5 F6 N: m6 l1 P3 s ) ;end progn
! N2 ]( s s; q2 S' \& U (progn& a$ W+ @$ J6 E: r/ V/ L8 c
(command "zoom" "w" p77 p88)
2 r/ U) A) P o7 x3 w (command "mirror" L2 "" p2 p12 "")3 l: B% Y/ `# ?. r
(setq pL1 (entlast))
! o3 m. J6 B& M4 O (setq adj1 (- angi (/ pi 2))) Y+ u; B% S4 J0 f8 J' r
(setq adj2 (- (/ pi 2)(* pang 4)))
' ? y) W) t; d. k" x (setq p17 (polar p2 (+ angi adj1) r0))
) m6 U6 S7 L2 M4 p# `3 n/ A (setq p16 (polar p2 adj2 r0))
5 I9 M0 @5 C* P- g! l (if (> numt 101)
1 d' e& i" N* F- m (command "arc" p17 "c" p2 p16)3 M4 e+ L% @5 i4 D. A
(command "arc" p16 "c" p2 p17))9 ?3 w3 Z/ Z: Y/ N1 R3 I
(setq arc4 (entlast))
7 Z; e* I8 [2 y) t# u (setq p171 (polar p17 0.7854 (/ 0.4 diap))); E, g# W/ a% q* ?' W
(setq p172 (polar p17 3.9 (/ 0.4 diap)))! M S1 W/ C: H# g" {
(if (> numt 101)% _' R+ G1 y, G
(setq p18 (polar p2 (+ angi adj1 ang0) r0))
) Z1 q" {* c6 u% Z) x! l (setq p18 (polar p2 (+ adj2 ang0) r0)))8 s6 ^9 Z( T& U' w
(setq p181 (polar p18 2.3 (/ 0.4 diap)))& e8 w/ L D- }5 e# d' N& ~
(setq p182 (polar p18 5.5 (/ 0.4 diap)))
% Q$ V( o5 z0 m6 x! @ (command "zoom" "w" p171 p172)
, [9 t# S0 e) M* d (if (> numt 101)
* a( R) `: N+ h9 G/ Y% j (command "extend" pL1 "" p16 "")
- Q) S1 |% B3 ?) h& u" V (command "extend" pL1 "" p17 ""))
7 V) }; R/ v0 L v) d7 e (setq ang0 (/ (* ang0 180) pi))
0 f0 u" w. }6 W$ Q9 W8 _, O (command "rotate" arc4 "" p2 ang0)
2 w! d, E; X/ B9 V (command "zoom" "w" p181 p182); x5 }1 A b- f/ o6 J* B! r8 ~
(command "extend" L2 "" p18 "")
% Q( Z! s& h- [8 x/ L (command "zoom" "w" pz1 pz2)3 V9 v; a% y3 m" g% M
(command "trim" arc4 "" p5 "")6 ]. i! P: \, z5 c" A$ ]: P
(command "erase" pl1 "")
, j( c+ n( j) {8 H- g) f& w (command "mirror" L2 "" p2 p12 "")
" ]# q( P* |& [ ) ;end progn
6 l1 q, m% N1 y- G0 R2 Z" ] ) ;end if+ o4 i; t5 }7 A" q6 y: f
) ;end progn+ t; j. l! j( q3 d/ I8 ]" A$ g
(progn
. x, G+ z1 l7 M- M0 I9 G5 y2 t/ u3 @ (setq ang12 (- (/ pi 2) (angle p2 p12)))
1 h$ E5 U" p9 t: j6 h5 ^; ?' d (setq ang57 (atan (/ r1 h)))
# x2 G! J, V2 \4 q (setq ang58 (- ang0 (* ang12 2) (* ang57 2)))
2 g+ F9 a8 v7 J; I) u: I (setq ang577 (+ (/ pi 2) ang57)) e; ?& Q: {5 ?2 \/ ?
(setq ang588 (+ ang577 ang58))
) m( \; A( ]/ M! V% z, I (setq p57 (polar p2 ang577 (+ r1 r0)))
P+ [, J9 r9 `! r+ n$ f7 m: R (setq p577 (polar p2 ang577 r0))
% `5 l" h/ o, W. c/ y* m/ g' v7 y (setq p588 (polar p2 ang588 r0))
* ~- }! R2 @; E) h* E8 F( k (setq p56 (list x2 (+ y2 h)))6 S9 z. d+ ]' H" p$ b( s6 G% e" M" X) p
(command "arc" p577 "c" p57 p56)
" m( ]% F {, ? n3 z: a8 A (setq arc1 (entlast)), `4 y% |# J; H2 c
(command "arc" p577 "c" p2 p588)4 I, \0 t# ?+ y* a, W, Q
(setq arc2 (entlast)). D- v5 ~+ [/ v2 b' b& K6 Q
(command "line" p56 p5 "")
6 v: T. D/ B; @% S& l (setq L33 (entlast))4 m% P! C* l# ?+ I3 i" ^
(command "zoom" "w" p77 p88)) r9 L; }2 G8 b) x( ~9 ^/ Z, l
(command "mirror" arc1 arc2 L2 L33 "" p2 p12 ""); r+ K G3 g: l2 m; r# U( C2 @
(command "erase" arc2 "")
: w: o8 S8 q3 k1 i0 ^0 m w ) ;end progn
- u) B+ o& c# l0 n# k, J. h9 y, n ) ;end if
4 K- D/ T# K! X5 V6 V- |; 9 ]' y, B/ u# \, Y4 d0 E
(setq beta (angle p2 p3))
! q- a7 h0 H' W (setq ang2 (- (* angi 2) beta))% Q3 D/ y" L% z
(setq p15 (polar p2 ang2 orad))
% K6 D" O0 s- ~0 h (command "arc" p15 "c" p2 p3)
7 h% w( M0 b- e, `- f& W; _$ | (while (setq le (entnext le))* U4 p3 a6 b; k9 o) O5 u, v6 L( G
(ssadd le s)
# J$ @0 F$ C1 [& X F( z )
) c; x2 A3 o h# Z+ E& ?/ u' F( F (command "array" s "" "p" p2 numt "" "")
# G7 ]7 H! P1 X (setq q1 (nth 0 p2))
7 T L9 `8 E) g3 n+ ~% B (setq q2 (nth 1 p2)): B' S1 f+ T# [# c( z
(setq q5 (+ q1 pitr 2))
4 M: k3 D# }: A/ A1 h (setq q6 (- q2 pitr 2)), c0 f, A1 M0 E( P
(setq q3 (- q1 pitr 2))1 a3 `( M" u% I* S# R
(setq q4 (+ q2 pitr 2))! n- l* B5 d0 c! F
(setq q1 (list q5 q6))
$ D4 {% c4 \) ^$ r, d- _0 o (setq q2 (list q3 q4))
' V% b2 v+ k u5 x' m6 ~ (command "zoom" "w" q1 q2)
4 a" H# t3 Z! o$ A5 T( O+ p) E( o )$ O9 T% l/ P$ u
), `# v) F( e% y
(setvar "pickbox" 5)
o- Q) g) a" h1 G- `5 W (setvar "aperture" 5)
& U7 N# Z. H s/ W1 K& m (setvar "osmode" 37)
: P* t0 o. U( U; R) s( i
- W0 B, m/ _% ~: R% S, [" x (princ "Finish gear ")4 V/ \( t0 d+ k
(princ numt)
0 V7 W' h) ~' g' f% K A (princ "T"); }: o1 Q, T# Y# @
(princ)4 j% Q+ p. v) m5 r
)' d3 y( z: v8 E* Z4 i+ j& C
. g# C- G# E' {5 O* u# X |
发表于 2009-5-3 13:02:33
