(defun C:gear ()& p) i7 y3 E7 |% u4 ^5 l: ^
(setq numt nil
0 J5 Q: N' O/ i4 @' } diap nil $ U0 T0 ~" Z3 N: d! v% m5 a4 j
prsa nil5 t1 A/ o& V, l" N3 p! r" _- ]
pnts nil9 E- F* [3 _+ v: \
test nil5 w g+ L+ T% b3 T
pwd nil- M+ |5 }" P1 C& _& r) y
)+ r( b( v P$ C6 _, f6 ?2 |
7 R8 B7 Q& k+ \' H; h (setq numt (getint "Number of teeth:<24>"))
/ s) A/ S1 l9 ]! D! u& | (if (= numt nil)
! D$ Z6 f5 V3 R; M) e" _ (setq numt 24)
* W6 \# j5 ^8 f# Z, R )
: e7 l* H, g. @2 j5 v1 M9 c$ l* m (setq diap (getreal "Modulus of gear:<0.5> "))' f9 A( W" @7 P/ E
(if (= diap nil); u! j, ^% `' C, t
(setq diap (/ 1 0.5))
`0 y7 c2 q! z. B- D (setq diap (/ 1 diap))
, A/ h o, L, f, t )
& d" \" T; l3 c (setq prsa (getreal "Pressure angle:<20.0> ")). R5 S d$ ] t1 o$ v4 W) o" y
(if (= prsa nil)- M2 Y- W- M: L7 H
(setq prsa 20.0)& z+ \$ n6 o, U0 `- R) l+ J
)
( [; W* _2 S- C0 M* R: l (setq pnts (getint "number of points on curve:<40> "))
( L: ~. z, f8 G1 F (if (= pnts nil)
3 L3 A( V; c2 D- G5 ~4 Z- G; o (setq pnts 40)
# j0 F. g/ e, \" ~& N( C )
& u- Q' @6 I! f% H: N5 n' L' w
# X9 E* ^7 E4 o! r+ G9 g, v; (setq pwd (getreal "Please input password:"))& |4 V, v% I. i2 R. F
; (if (/= pwd 8833)
. @8 P( \) H0 {: ~5 \, ]; (setq numt 0)
|4 S/ }- b0 h* e7 ]8 T; ) i* O& y( `. j
; (if (= pwd nil)
/ l# d) @* `- X6 i! R; (setq numt 0)3 b r6 {6 R( ~; E$ a* U7 P: ^ e
; ): x6 ?6 C& v" N5 Q
;
5 b+ e8 s T( j% }. S# N' T( g( I (command "osnap" "non")
- H# J+ N& G9 ?* P- f (setvar "cmdecho" 0)5 O1 @0 D' B% [, I) f" K2 P
(setq oldvar (getvar "pickbox"))
, _" S- n' I5 a" j (setvar "pickbox" 0)4 _7 u# @+ S8 O3 a- O- F, T: K
(setvar "aperture" 1) ^$ z+ V2 R# A' a1 D( ~5 |
(command "osmode" "0" )4 W5 Z) j$ o; Q+ h
;
# O- f* o* e% A( G3 R3 E (setq prsa (/ (* prsa pi) 180.0))
7 ]6 G6 ?) G& H* y7 K- G (setq pitd (/ numt diap))
2 ~& Q4 r F' t; ]4 s (setq outd (/ (+ numt 2) diap))
, q# N( x2 W2 ^" q/ e. Q (setq basr (/ (* pitd (cos prsa)) 2))
2 ?' n4 |0 L* _) D8 K (setq orad (/ outd 2.0))
# m# c6 ~$ M) ^; T; }" _1 g) m (setq z (- (expt orad 2.0) (expt basr 2.0)))% ?1 g4 j+ t5 l3 j% `
(setq x (sqrt z))9 ?3 R6 }. l c* |- c
(setq paodd (atan (/ x basr)))& @8 `- Y- B) `8 a
(setq incr (/ paodd pnts))
0 j* \$ c/ P; C+ t (setq p 0.0)% o/ o: i/ S5 Y$ @
(setq pitr (/ pitd 2.0))
% }# u4 k9 S* P' B! x (setq pang (/ 360. (* numt 4.0))); p: r( r9 M m; N' Y) o, _ K8 z
(setq pang (/ (* pang pi) 180.0))
: C j$ I" w2 `9 G! H5 f* w (graphscr)1 o6 m: j7 d- I. y
(setq p2 (getpoint "center of gear:"))
: P9 g& @8 |- W6 X' C3 Z" g( l& n (setq y2 (cadr p2))
U9 R e2 K0 ?! v8 j5 k, ` (setq x2 (car p2))2 {0 B# R1 S( \0 W2 w
(setq r0 (/ (/ (- numt 2.5) diap) 2))
: o. [" ?' ?, j: W, H- |. C (setq r1 (/ 0.2 diap))
b/ G- v9 y9 L" F U4 | [ (setq h (sqrt (- (* (+ r1 r0) (+ r1 r0)) (* r1 r1))))
; ~- R) f0 r2 j* }% g (setq ang0 (/ (* pi 2) numt))
8 u- f$ Y( z8 V/ \" S; p
- e/ U! _/ v/ m; y) V+ y (setq y5 (+ y2 basr))
, P3 Y; q. I( _$ b (setq p5 (list x2 y5))9 b; J3 Z( _, R9 _9 w( N
(setq y55 (+ y2 r0))
: G- O. E$ G- Y" a. ^ (setq p55 (list x2 y55))8 L( g0 j* ?/ W5 d, k. ]( [
(setq p88 (list (+ x2 2) (+ y5 2))). }+ u% p* K5 s/ L" O
(setq a3 (/ (* pi 5) 4))9 @0 p. h* l) k- B
(setq a4 (/ pi 4))/ d& d+ e/ X7 J) p* b
(setq pz3 (polar p2 a3 (* orad 1.5)))
; ^* {/ R. [+ ^+ Z8 V (setq pz4 (polar p2 a4 (* orad 1.5)))
& V" Z- D' s" M3 {0 ` (command "zoom" "w" pz3 pz4)
0 X8 U% a+ _' s8 [% ]. Y6 ?/ I! u;
" g5 r. ?7 d. H. W6 u o (setq clay (getvar "CLAYER")); L; y! d2 d& s' N5 K9 M% ~
(setq sblip (getvar "BLIPMODE"))
p) r" |- V% v* l$ g) B$ J (setq ts (tblsearch "LAYER" "CEN"))6 m1 ~) Y b5 }5 q
(if (null ts)
g. W5 h: N) o9 M$ i5 @1 s1 r# G (progn
1 w8 P3 s! ?6 A6 ?, ]# L" ? (prompt "\nCreating new layer - CEN. ")
, C7 ~2 K8 z1 a3 K (setvar "BLIPMODE" 0)& ^+ _0 s+ T2 X! Z' _+ K
(command "LAYER" "M" "CEN" "LT" "CENTER" "CEN" "C" "RED" "CEN" "") 0 V) @7 L# B" X, X, b8 R2 a
)
! C* P7 L$ @5 F% w: g (progn
/ ~2 U: j6 M1 ?# U1 c (if (> (cdr (assoc 70 ts)) 0) (command "LAYER" "T" "CEN" "ON" "CEN" "U" "CEN" ""))* h6 l& w: c5 l$ E, [% Z/ G) o
(command "LAYER" "S" "cen" "")( N# _9 [ V6 I" _8 H, {( d4 {
); j; X' y, g+ k" ^ q! A
)& f. ]9 z& w$ g) X$ A! e/ ]6 R( n
(command "circle" p2 pitr)
) D1 i: I2 [1 a: q9 W- f. y. | (setvar "BLIPMODE" sblip)
1 p6 J4 g4 k/ Y- x7 G7 l/ T (command "LAYER" "S" clay "")# Z9 Y+ P8 F3 Y8 R7 J* Q$ V
;2 F6 \( n0 V9 m+ `# F% ^
(setq a1 (- (/ pi 2 ) 0.1))1 N9 w5 A! }/ I
(setq a2 (+ (/ pi 2) 0.1)); ?1 ]' M1 T8 r) ]( ?
(setq pz1 (polar p2 a1 basr))/ W( Z* T) V: z( n+ b/ ]7 w
(setq pz2 (polar p2 a2 orad))
- ?% U2 p4 p! r (command "zoom" "w" pz1 pz2)
' K7 R- {# R" i (setq s (ssadd))
5 c% Z5 N) z) D8 K5 X (setq le (entlast)) ] t. T3 Z' f
(setq test 0)7 {* o: ]- _/ q" `/ _0 ^- w
4 Y& S' L' m5 N3 d* L (command "pline" p5)3 q+ Z+ p6 l# s. y) `
(setq p (+ incr p ))+ x8 ]# r3 v/ w
(while (> pnts 0)2 @9 m% ]! w8 g2 C" j: V( |
(setq e1 (sin p))
1 f6 K. t/ { d+ r" ?3 j: I) c, Q (setq e2 (cos p))3 d. `$ B1 [% B0 @3 P! }' D) H
(setq e (/ e1 e2))- u* M8 `& [2 X8 b' r) {& ~
(setq j (- e p))" y) e/ i3 ]; w
(setq x1 (* (/ (sin j) (cos p)) basr))
7 x: M& k; V2 h3 c% s, } (setq y1 (* (/ (cos j) (cos p)) basr))
* j+ k; M3 b5 I% ? (setq x3 (+ x2 x1))
; [, ^0 V7 _3 j M0 @ (setq y3 (+ y2 y1))) C, g2 _4 N, X o
(setq p3 (list x3 y3))! n+ t+ V; ? X! l3 T4 o: }
(command p3)
2 u! ]0 Z' \1 _0 k; X [3 d& i (setq p (+ incr p))
" P* [ S- s6 j% b$ I) Q# M (setq pnts (- pnts 1))7 C2 C2 Q9 Y( w
(if (/= test 1)
0 S; l) A( V2 t! {2 i (progn
, D6 C3 s8 L/ Z& e! J0 T$ E4 | (setq hyp (sqrt (+ (expt x1 2) (expt y1 2))))
8 _7 t, L* z0 ]! b* n2 I0 b (if (> hyp pitr)6 `0 e8 H Z( l5 z
(progn8 r$ G- d3 r- W
(setq pint p3)
) i+ K! U L& U9 a (setq test 1)
7 z/ B$ q/ h, E6 J; l, x )
! Z0 \3 r0 J7 A( E* r! n )# ?+ l: y" Q* E. l; U* ~
);endif7 a7 U" y) z' t3 x( K
);endif
/ @' S1 A5 j$ W& z )" L2 s3 z9 e' ^8 k
(command "")' O2 X% K/ z$ A
(setq L2 (ssget "L"))
+ o/ }" j+ d9 H( y C- o (initget "Y y N n")
( L( d; I5 c7 h! Z (setq ans (getkword "\n Finish the gear ?:<Y> ")). t+ i0 m C$ \8 Q3 D3 h' |
(if (/= ans "N")
5 u$ N1 Z& P6 ]# F) Q (progn
! V6 p( d- N1 U4 s1 ^6 c* p8 z' F (command "zoom" "w" pz1 pz2)- [. u! i1 v1 u( }
(setq p11 (osnap pint "inter"))& H8 L1 Z. p, o8 b4 s' s: a
(setq ang (angle p2 p11)), {, A! W* T$ n: {2 k; O: T
(setq angi (- ang pang))( Q, t. v% A0 o0 J
(setq p12 (polar p2 angi 1.0)). | U$ T. }/ i! R" j
;- c* g$ a) J) z8 b
(if (< (* 0.94 numt (/ 1 diap)) (* h 2.0005))0 ]# e8 @$ |$ l
(progn; s! {* v& O& E
(if (< numt 42)
+ Z( _* y7 o- C$ L7 n& E/ o1 `. t" a (progn, Y) s, K5 X: }- Q+ ]* S1 y- e
(setq p56 (list x2 (+ y2 r0)))
0 ~0 @& [8 u* p. }- f1 F (command "line" p56 p5 "")
/ G3 f/ G" V" @2 K; B0 b$ g. i (setq L33 (entlast))
$ k8 }9 R" k' @9 W. { (command "zoom" "w" p77 p88)
) @6 W$ i7 [1 {1 q (command "mirror" L2 L33 "" p2 p12 "")( P" T3 Z4 R2 E* H' R) S
(setq adj1 (- angi (/ pi 2)))) o7 V8 V4 w8 P& l( W
(setq adj2 (- (/ pi 2)(* pang 4)))& j, x7 r- q- F* r5 }
(setq p17 (polar p2 (+ angi adj1) r0))
# L$ {5 Z& f9 G- j6 o% m" O (setq p16 (polar p2 adj2 r0)) Q y# j: O) J6 F: |4 t# U3 h
(command "arc" p16 "c" p2 p17)2 T: v. I% y; t0 f, N
) ;end progn! q3 E' p- z& o3 K+ E
(progn
& M% N+ V: I* U2 | D (command "zoom" "w" p77 p88)8 g4 h% R% O5 x9 w& W) O
(command "mirror" L2 "" p2 p12 "")
; {$ h: F' G5 D5 t (setq pL1 (entlast)) , q+ _. s/ C* _1 L* ~4 ]! ` s: N
(setq adj1 (- angi (/ pi 2)))0 o% [' V' y) ~) f; i
(setq adj2 (- (/ pi 2)(* pang 4)))- a3 z* a1 R: Y }6 ?5 {
(setq p17 (polar p2 (+ angi adj1) r0))! y: Q6 x8 g6 M: |( a# A9 f
(setq p16 (polar p2 adj2 r0))- W- R$ `2 Y! r& ~% r$ h$ ]6 u
(if (> numt 101)
; P: k2 n3 t) Z X" Y& t (command "arc" p17 "c" p2 p16)9 ^; c5 S( \' L1 H& C) c
(command "arc" p16 "c" p2 p17))
3 ?: R$ ?. b+ x3 d/ F9 g( c7 g3 h8 ` (setq arc4 (entlast))$ D9 G, n2 K: ~' M# i) }
(setq p171 (polar p17 0.7854 (/ 0.4 diap)))
9 x; A7 `; F8 O% i8 Z (setq p172 (polar p17 3.9 (/ 0.4 diap)))2 c9 H$ b2 }- w2 k. p6 s% R& @
(if (> numt 101)
; K1 G- z, l7 ^# w" C! @ (setq p18 (polar p2 (+ angi adj1 ang0) r0))- L" u3 m2 y) T. n
(setq p18 (polar p2 (+ adj2 ang0) r0)))9 O+ z* k( \* P5 Y7 E6 C
(setq p181 (polar p18 2.3 (/ 0.4 diap)))
& u6 \0 Y& S# G% @8 Q (setq p182 (polar p18 5.5 (/ 0.4 diap)))
1 D6 r' M1 d% ?: |! t6 o4 x7 Q (command "zoom" "w" p171 p172)
7 m3 t* R3 w2 C* a0 }7 |- G (if (> numt 101)
( k) c* o1 F8 ?- } l* ^- Y (command "extend" pL1 "" p16 "") 9 I7 }$ z$ d$ R* A
(command "extend" pL1 "" p17 ""))( s O! f6 a6 s" c7 p
(setq ang0 (/ (* ang0 180) pi))
; [7 {9 N/ j" s (command "rotate" arc4 "" p2 ang0)
$ n8 `5 T" d' ]" M, t+ P (command "zoom" "w" p181 p182)$ k+ F- k( x c& r8 e( N E
(command "extend" L2 "" p18 "")
( d( N) ` [1 G+ `! c+ M (command "zoom" "w" pz1 pz2)
' I; T% ^4 A3 _; {" }: j+ S (command "trim" arc4 "" p5 "")
7 b; \# [, {; A6 L (command "erase" pl1 "")
7 f! W, b* O3 x8 v2 Z9 B/ M$ ] (command "mirror" L2 "" p2 p12 ""): b1 d, ^6 T6 b
) ;end progn$ Z* S3 A- o2 Y3 L [
) ;end if
7 o- `1 o& S# ^! I ) ;end progn
% d5 X* ~, k1 t3 {6 H# E (progn / V. j/ X8 Z: c! T0 P) k. O2 r
(setq ang12 (- (/ pi 2) (angle p2 p12)))
J" N7 L2 s: q' b* d& w (setq ang57 (atan (/ r1 h))): V( @, a" F; X. V
(setq ang58 (- ang0 (* ang12 2) (* ang57 2)))
2 b: g- E" l* c. r (setq ang577 (+ (/ pi 2) ang57))% M0 M9 q1 q) ?
(setq ang588 (+ ang577 ang58))/ d* s M e1 p: Y/ L/ s
(setq p57 (polar p2 ang577 (+ r1 r0)))
* ?9 A/ I. v1 J u3 l (setq p577 (polar p2 ang577 r0))
% s9 p5 }7 }; _- A (setq p588 (polar p2 ang588 r0))
: e W- T7 W! {. B8 ~" \- F (setq p56 (list x2 (+ y2 h)))
& S- y; l2 Y; u (command "arc" p577 "c" p57 p56); ]( g% C. o/ l! T
(setq arc1 (entlast))
4 e4 I! o) z5 v1 T9 f; f2 Y; j% m (command "arc" p577 "c" p2 p588)$ Y6 x0 x" G; q: z
(setq arc2 (entlast))9 V, @/ S/ Y9 k. [: ^: R! w
(command "line" p56 p5 "")
8 @) ^- `0 n- Y3 a (setq L33 (entlast))
& F: e/ P( p' j7 K6 R* z9 c (command "zoom" "w" p77 p88)) \. E O* Y% v& Y% H0 W
(command "mirror" arc1 arc2 L2 L33 "" p2 p12 "")
: ]9 D7 i; s1 _' K (command "erase" arc2 "")
3 A) k" q/ G# U8 p1 Q4 q ) ;end progn 7 f& E3 H; S9 ^8 `1 p9 n. v
) ;end if
+ g' c0 R' I$ `$ I; g, k; t' S; " }$ R* J8 i9 m, @5 j1 w5 L& B
(setq beta (angle p2 p3))2 E' r, E+ J) W" K
(setq ang2 (- (* angi 2) beta))% j9 G& d! h7 u8 H$ ^: n o
(setq p15 (polar p2 ang2 orad))6 b% I% E7 _9 B
(command "arc" p15 "c" p2 p3)
" S4 R- m/ \+ s) ~# P (while (setq le (entnext le))
8 `6 A: \1 H( S (ssadd le s)" q3 ?+ G6 c* I
)
' s: W9 v! E8 }2 q _2 \, ? (command "array" s "" "p" p2 numt "" "")
4 V. ^( C& O$ W! H0 U8 b( h' O (setq q1 (nth 0 p2))
" {% \0 H# I9 [: h Z! \/ I7 I; ~: [' b4 [' N (setq q2 (nth 1 p2))
! Z; h" ?" E- Z+ J (setq q5 (+ q1 pitr 2))2 _5 i3 @7 I6 Q! |' ` d
(setq q6 (- q2 pitr 2))) a( C) A& @2 R* h! W9 s
(setq q3 (- q1 pitr 2))7 H# K) c& t2 A, @: w; `
(setq q4 (+ q2 pitr 2))
: K8 n& ?3 V8 H, s% ^% ^ (setq q1 (list q5 q6))
% E1 }1 R0 T8 O( k2 r3 O (setq q2 (list q3 q4))
$ A3 J9 D6 q+ ~4 ^) h (command "zoom" "w" q1 q2)& B* T8 s1 I/ V3 d0 ~, W
)
: B: V- L7 \6 B+ z* y. i: T8 L& N% u )& Y$ R' J2 ~; N6 O" U3 \6 L
(setvar "pickbox" 5)
- L: l4 b5 i. x: @6 t (setvar "aperture" 5): ~; E& h$ j' D! N
(setvar "osmode" 37)& U6 s5 u' B5 U8 R' N/ K! r
6 l9 b# @7 \8 B5 k7 {, m, H
(princ "Finish gear ")
4 ~& U, t0 o+ B. I( @/ K: b* r (princ numt)3 l1 p; F+ \% i2 }0 L
(princ "T")5 B0 S7 y# k% P! V, B
(princ)% H+ h' h- _3 [. J9 }- Y: |
)
! e* _# }& L J3 B$ G$ V& F
2 T$ b+ V: l) n1 Z; y% N- k6 V |
发表于 2009-5-3 13:02:33
