还做读书狼 发表于 2011-9-12 22:10 ![]()
, y5 ` C0 }2 o6 S0 L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 ... $ T y3 {3 R8 n' S0 S2 M
(defun C:gear ()
6 d& B" a% w! J) z# c3 @! }4 K D (setq numt nil0 M; U- p7 q& X$ T; _/ g: J
diap nil
& `8 w$ S. ]9 f; ^% D9 q$ \3 } prsa nil6 ?6 ?+ V. o6 e' ?5 T) A
pnts nil' t5 [& p" R! x8 c
test nil! v `# j8 k! |* L
pwd nil
; B; V* }" k7 P2 D( s: M7 B )" T! G- r: o" K" N& p
% c" B& r6 s& p
(setq numt (getint "Number of teeth:<24>"))* c& V1 \& x- j
(if (= numt nil)
4 M* L+ A+ p# D+ c: n (setq numt 24)1 t: ~2 k8 I3 t4 s
)
% p9 Z! o6 }$ K2 I r3 J (setq diap (getreal "Modulus of gear:<0.5> "))
7 }' R( e6 D4 D- u* v* ?8 x (if (= diap nil)
- a# v9 @5 C2 N: S: _3 L& l (setq diap (/ 1 0.5))
7 }( I% u/ O+ T (setq diap (/ 1 diap))
6 W7 N1 p* t5 j/ S# ?4 _ )' C5 [( H3 C$ M& i
(setq prsa (getreal "Pressure angle:<20.0> "))7 a, [4 J" \! {4 w$ w" e
(if (= prsa nil)
$ D) K0 }# \8 e9 B (setq prsa 20.0)7 H3 ]" Q: l, c0 p8 R
)
; f7 z$ B! O: i (setq pnts (getint "number of points on curve:<40> "))
/ I) \1 w% r. v ?: p (if (= pnts nil); c/ G. o% n' R% x3 [& Z: D! S
(setq pnts 40)# s: K: c0 ~$ t+ q$ F3 d
)
9 k+ o* f% A( r' P5 D' M; (setq pwd (getreal "Please input password:"))5 C% ?/ Y! ?" {
; (if (/= pwd 8833)
# T7 ~5 L7 e1 R! U; (setq numt 0)
! S- Y( O# d2 J* s; )4 d0 l. n2 b, X0 @8 o4 F% N
; (if (= pwd nil)2 H' M8 P; }# \( O1 [; x' i
; (setq numt 0)
/ R# s' U6 x/ ~8 v( T- m2 b4 a; ): E* n. J# G+ T& i- z
;
, z: u8 ~8 ~( F M# R& g1 |( L (command "osnap" "non"): }' E9 P$ p* ~% H* k
(setvar "cmdecho" 0)# k0 m" q/ I- |3 w8 e
(setq oldvar (getvar "pickbox"))
0 }" Y" j. S% Z& J1 l (setvar "pickbox" 0)
% F+ h* B" |! O2 C7 Z: L2 } ^ (setvar "aperture" 1)% n, d7 K# y# J4 C1 [
(command "osmode" "0" )
; W! n& ]2 z' ?# h+ t;
$ L8 j" l9 M {! q |" A- Z# p+ J8 c* | (setq prsa (/ (* prsa pi) 180.0))
K, I% ]# W A4 D/ O! p$ y) E" ^ (setq pitd (/ numt diap))
0 T/ S! o* A, R6 p (setq outd (/ (+ numt 2) diap))/ W* }8 f% O2 }# y4 k. T
(setq basr (/ (* pitd (cos prsa)) 2))2 [8 M" a. S$ I# f- }" M
(setq orad (/ outd 2.0))7 l1 w9 l) q, q6 t( F" ]& W+ W" |
(setq z (- (expt orad 2.0) (expt basr 2.0)))& X) w% R5 ]2 e" z
(setq x (sqrt z))
% T/ R, R( j7 n9 k; Y$ L (setq paodd (atan (/ x basr)))/ Q$ f9 d; l5 ]- x- U/ R! A2 d+ l: v
(setq incr (/ paodd pnts))" ?9 z0 C" z3 f o
(setq p 0.0)# G, t1 n' L2 @& J) z
(setq pitr (/ pitd 2.0))
# S- b# n& X F (setq pang (/ 360. (* numt 4.0)))
" a2 Z8 F& C8 o) ?/ t2 W9 y (setq pang (/ (* pang pi) 180.0))2 D6 F6 W" m+ H T+ m
(graphscr)3 E; P5 Y/ m2 N' M
(setq p2 (getpoint "center of gear:"))
0 u; b. k$ V8 n! N0 P+ P! K (setq y2 (cadr p2))
/ T% Z- s) _3 D' m+ A( N S( X) j (setq x2 (car p2))
& ?; K2 @( J% O- H) j7 N5 \ (setq r0 (/ (/ (- numt 2.5) diap) 2))5 A7 N2 J6 k) h5 G! _7 z
(setq r1 (/ 0.2 diap))
$ q5 m. L6 s' L+ U (setq h (sqrt (- (* (+ r1 r0) (+ r1 r0)) (* r1 r1))))/ \. G, @; X/ P" I
(setq ang0 (/ (* pi 2) numt)), m0 |+ ?2 J3 V8 M9 R
(setq y5 (+ y2 basr)) q. M. c% J1 t1 K
(setq p5 (list x2 y5))
! L, S# E( Q5 w7 z% L4 t (setq y55 (+ y2 r0))7 ?8 i* Q8 C/ o* |/ u( k8 k
(setq p55 (list x2 y55))4 A5 U. Z$ ^2 j) Z: B
(setq p88 (list (+ x2 2) (+ y5 2)))
( k; p5 i. L; \1 m" x8 z (setq a3 (/ (* pi 5) 4))% C8 u9 V% W8 `
(setq a4 (/ pi 4)); A# m7 s# o( e# i8 w
(setq pz3 (polar p2 a3 (* orad 1.5)))( |2 \. s3 i4 ]; d! m% }
(setq pz4 (polar p2 a4 (* orad 1.5)))+ {6 h. B( w/ ] w# m" W
(command "zoom" "w" pz3 pz4)& c6 } S2 u& C1 o' W5 }" J
;
s, f1 A. M4 }8 ` (setq clay (getvar "CLAYER"))( R6 f% ?; _* x4 G
(setq sblip (getvar "BLIPMODE"))" I5 Q, g e" w. m; M
(setq ts (tblsearch "LAYER" "CEN"))
2 T7 i. h. |' S (if (null ts)
0 z: c k" B/ n4 N7 p+ k7 S' n" F (progn4 X0 ?, ]8 X2 k9 K! H1 q5 N
(prompt "\nCreating new layer - CEN. ")
' |8 C( I, g; N; p (setvar "BLIPMODE" 0); G/ D f( f+ m- F8 G, O+ l
(command "LAYER" "M" "CEN" "LT" "CENTER" "CEN" "C" "RED" "CEN" "") , f' K8 w; r; K: d# }- V
); ^" _1 A+ N: h4 f' I- p: k
(progn
: F9 Q( B1 w) G (if (> (cdr (assoc 70 ts)) 0) (command "LAYER" "T" "CEN" "ON" "CEN" "U" "CEN" ""))5 w5 F+ l$ a7 { Z% I( q j9 C
(command "LAYER" "S" "cen" "")8 o8 ^1 Y/ n0 `3 c4 c X
)
0 Q8 h, y/ n9 K( [; D( k1 k7 C+ W )3 G$ \( E# a; G6 z9 x" h$ U
(command "circle" p2 pitr)
6 U" e9 H0 @% x8 Q7 N# B" d" \ (setvar "BLIPMODE" sblip)1 S \ m) r3 n0 m$ W0 t4 W
(command "LAYER" "S" clay "")
) ?0 ^3 R; [6 P7 G8 c5 r& A) s;
% `) T/ w- q# ^3 H, @# t (setq a1 (- (/ pi 2 ) 0.1))! ]* @7 o) w; g8 T! h, W$ }4 K
(setq a2 (+ (/ pi 2) 0.1))
, b, a) H! ~0 z) N6 {4 L (setq pz1 (polar p2 a1 basr))
* E2 f. N: z* o; Q7 V7 i$ x (setq pz2 (polar p2 a2 orad))) Q/ }" p! V1 A" I- f
(command "zoom" "w" pz1 pz2)
* l7 o- M/ f! F: Z (setq s (ssadd))
7 R2 d/ o# [ `7 U7 n (setq le (entlast))* s; h% Q ~8 _" C5 m
(setq test 0)& p9 m% z. y, U
(command "pline" p5)
3 c. C+ n6 q/ O/ ^ (setq p (+ incr p ))" D' h; o1 c6 e! h
(while (> pnts 0)
, Q2 [3 \. C: @3 s9 I (setq e1 (sin p))
+ W6 ~3 s% r3 z3 h4 `& k0 G (setq e2 (cos p))
" X% F* \: N3 O1 B9 e+ W1 o (setq e (/ e1 e2))
+ `2 g* ?* m# d5 Z8 _ (setq j (- e p))/ D- q# i' D# |5 U# C
(setq x1 (* (/ (sin j) (cos p)) basr))9 s X7 o* t7 z0 Z$ Q; ~
(setq y1 (* (/ (cos j) (cos p)) basr)): _# A' D8 H. @, q
(setq x3 (+ x2 x1))
t! F$ B4 n. J' j8 X- d+ w (setq y3 (+ y2 y1))# Q _, M7 ?# m" Y% `
(setq p3 (list x3 y3))
# b3 k- E9 r z0 x' ]* p$ a. g6 o* ? (command p3)# }3 P4 e5 M2 d
(setq p (+ incr p))
' ]% e; R- {0 A (setq pnts (- pnts 1))
8 s, l( l3 Z1 L0 U% \" N0 g, c (if (/= test 1)
1 d! e! I+ M& @8 D (progn
- x; \. L6 J8 R; C5 } (setq hyp (sqrt (+ (expt x1 2) (expt y1 2)))): ]/ h5 Y/ G5 E/ J3 M M2 D
(if (> hyp pitr)/ d0 M. |4 K; N3 x
(progn
5 D. ]& ^0 z5 O7 @ (setq pint p3)
$ q5 m) ^$ y2 R$ R; ~! `" ^ (setq test 1)
) C0 B% P! l' _ )
$ e% d0 d/ }0 N. X5 Q2 V8 [ )
* f3 _* R x# a0 z/ R" B6 O );endif
* |' l( Z. x' \' A/ F7 {# L$ @, I );endif
" \7 E/ T$ u6 [' k9 ^% w) o% y3 g& } )
5 Q8 M( L6 E) R7 u (command "")
; N! n$ Q. O& s- u1 ] (setq L2 (ssget "L"))
1 K/ a+ G" J3 \3 T+ Q (initget "Y y N n")
4 |2 W+ v4 d' E1 ? (setq ans (getkword "\n Finish the gear ?:<Y> "))
) a, R1 ], }4 E1 R' } (if (/= ans "N")) K( ~6 q2 o w9 |% `: ]$ h
(progn
" g& a: Z' Y/ O, P% _" p7 P (command "zoom" "w" pz1 pz2)
0 P$ r5 b _7 Y' Z2 p5 M& A (setq p11 (osnap pint "inter"))
& w! b; o2 d; K ~/ y (setq ang (angle p2 p11))
3 S' \1 k( f! a+ x# X9 `' J B7 c (setq angi (- ang pang))1 r u0 c) Z: {2 B5 L2 A0 x n$ h
(setq p12 (polar p2 angi 1.0))+ N y/ n. m) i1 g! A6 Q9 n
;; n+ o- O0 I7 _
(if (< (* 0.94 numt (/ 1 diap)) (* h 2.0005)); z% M8 }2 g6 p# z) R) R
(progn
" k, N* {$ F7 E0 F (if (< numt 42)0 k, h8 K5 Q# S- t! W; N
(progn- ?; D i y+ q, b
(setq p56 (list x2 (+ y2 r0)))
" M; E) M7 K2 R: i (command "line" p56 p5 "")' t: @6 d# o! P! ^$ F
(setq L33 (entlast))
- x% n) B" A; \+ S& E0 l( A2 j- L (command "zoom" "w" p77 p88)/ K$ d2 {6 ]5 O( N
(command "mirror" L2 L33 "" p2 p12 "")
7 e, v+ y/ ?6 y+ ]! N/ T (setq adj1 (- angi (/ pi 2)))
5 Z: s7 n2 a4 L I" g (setq adj2 (- (/ pi 2)(* pang 4)))
; B$ X4 U( ^ P6 @* ~% ? (setq p17 (polar p2 (+ angi adj1) r0))" e# I$ d: x: h5 ]/ _: ]* T
(setq p16 (polar p2 adj2 r0))
7 G0 F; z0 E# _2 I (command "arc" p16 "c" p2 p17)
/ e3 p$ {4 N+ \ ) ;end progn
1 N1 ^" }' J6 y, S% i4 |- x$ ^& I4 J7 ` (progn
, p' W5 ]' P/ \( B% g (command "zoom" "w" p77 p88)
' O& S9 Z9 Y' _3 N (command "mirror" L2 "" p2 p12 "")7 T% C5 D1 z' {/ `0 G
(setq pL1 (entlast))
$ {' S# }5 q9 d/ _# ]( B (setq adj1 (- angi (/ pi 2)))
( o1 y/ |6 v9 k" F (setq adj2 (- (/ pi 2)(* pang 4))): P/ Y! S( `: L
(setq p17 (polar p2 (+ angi adj1) r0))
% h/ c Q; Q y( ]/ q6 ~ (setq p16 (polar p2 adj2 r0))* E: U3 R& j, `) O2 Y
(if (> numt 101)3 a. ^$ w$ X: L: t8 X v7 J
(command "arc" p17 "c" p2 p16)8 S& f3 \1 ~$ y+ o" `! t
(command "arc" p16 "c" p2 p17))4 I5 j+ p% ^) G5 D/ f9 C
(setq arc4 (entlast))7 Q5 H" h6 r. O7 Y" [
(setq p171 (polar p17 0.7854 (/ 0.4 diap)))
: X. d* D) x* _/ f: C (setq p172 (polar p17 3.9 (/ 0.4 diap)))
; l* V" [6 H [- N$ K# p (if (> numt 101)
0 s7 ?' F' `" \6 `3 m1 P& R (setq p18 (polar p2 (+ angi adj1 ang0) r0))
, h" W" _) m! n% X7 @8 c (setq p18 (polar p2 (+ adj2 ang0) r0)))
5 f& _" p& E8 v! ^6 }& \4 Z) j (setq p181 (polar p18 2.3 (/ 0.4 diap)))
0 `+ w3 k8 M. R! @/ q (setq p182 (polar p18 5.5 (/ 0.4 diap)))# Y5 e0 \% p2 L9 \$ h. G% I Q
(command "zoom" "w" p171 p172): H4 i( P' W8 [2 O r+ N) J, z
(if (> numt 101)
( [8 G6 `4 q9 H9 d3 R1 ^0 R (command "extend" pL1 "" p16 "") L) q/ Y4 Z& D) Q
(command "extend" pL1 "" p17 ""))
- ?+ G: o! R/ w# ^5 l3 ?7 D: {9 ~ (setq ang0 (/ (* ang0 180) pi))
- z/ t4 K( i& @5 F/ F3 S (command "rotate" arc4 "" p2 ang0)
0 `: B0 H* Z! b5 T; h5 \6 k, H3 Z (command "zoom" "w" p181 p182)# @4 c) s8 c/ w+ ^5 t7 _$ B Z$ Y
(command "extend" L2 "" p18 "")
6 ?6 g. ]) X5 R( P3 N- t$ i (command "zoom" "w" pz1 pz2)
" u! F0 J% X2 c (command "trim" arc4 "" p5 "")8 S8 i% _* ~4 t _3 b6 \
(command "erase" pl1 "")( ^4 ?: h2 ~2 B4 M$ e/ ?, n- G) j; K/ n
(command "mirror" L2 "" p2 p12 "")
2 V" H7 |% y5 S, \ ) ;end progn
I% g* x" D% |4 \# o ) ;end if
1 f+ v. ~* [0 H5 g C* F4 [3 A ) ;end progn
6 u5 e; v% q, W" {& y+ Z (progn 0 z* U( K3 H3 d5 ^1 p
(setq ang12 (- (/ pi 2) (angle p2 p12)))
& v) b/ a! d2 B/ ~6 P' c (setq ang57 (atan (/ r1 h)))& K; L- v; P- w2 c/ |- S+ h
(setq ang58 (- ang0 (* ang12 2) (* ang57 2)))
8 g( W0 c4 e0 h9 Y3 R) x& B, N- G& i (setq ang577 (+ (/ pi 2) ang57))
2 r9 E% _$ S. a (setq ang588 (+ ang577 ang58))& D; V0 l& [6 A: H
(setq p57 (polar p2 ang577 (+ r1 r0)))7 j6 @$ t8 D; Z/ {! [) U2 o
(setq p577 (polar p2 ang577 r0))/ ~* _ g# }9 q9 I
(setq p588 (polar p2 ang588 r0)) 2 s, @5 Y. [% t/ V; F
(setq p56 (list x2 (+ y2 h))): Z+ P, e% e" D
(command "arc" p577 "c" p57 p56)
- V2 C9 l6 L0 o* J% Z3 j% V (setq arc1 (entlast))
+ @' x# f, B+ r R0 v6 t2 ] (command "arc" p577 "c" p2 p588)
' U1 J* \0 E+ C" }2 X (setq arc2 (entlast))3 N. ^' A+ P" ]7 i' U
(command "line" p56 p5 "")# M' y5 p1 w) D- H- Q4 V/ S
(setq L33 (entlast))
5 O0 a% S* k ]- Z1 V$ p0 y& o% B (command "zoom" "w" p77 p88)
* w' F: l' @) U8 D, \4 n$ w (command "mirror" arc1 arc2 L2 L33 "" p2 p12 "")- y% u5 J4 L6 C; R; c2 w
(command "erase" arc2 "")! ^9 W2 w- E( S. f5 _! ~) s. R
) ;end progn
! V& w4 k4 c$ i1 X! Z u, [ ) ;end if
% R8 g# D0 z( Z. A& Q9 S7 `0 M: c: h; 7 K4 ^# B$ P5 Z
(setq beta (angle p2 p3))0 k9 ~3 R% s# ]7 t# u6 r l$ ]" @3 {" r
(setq ang2 (- (* angi 2) beta))
/ a" o9 d& w- q% u% P- N7 m- p (setq p15 (polar p2 ang2 orad))
+ [' N- c/ o2 N. s, S. n& O) i (command "arc" p15 "c" p2 p3)% q' f5 u2 `, _
(while (setq le (entnext le)). F3 b3 d3 X9 J) n; J9 Q
(ssadd le s)3 c: m) O) a$ s2 x7 J8 X
)
1 s4 X1 n, S- L9 K" R5 F0 n1 W (command "array" s "" "p" p2 numt "" "")
O' L- h4 B1 a2 M; p (setq q1 (nth 0 p2))
' f) v1 K) Y' b( J (setq q2 (nth 1 p2))% A+ L. ^+ ? S; @& A" `7 x
(setq q5 (+ q1 pitr 2))1 G" M6 A$ l/ |, A5 U
(setq q6 (- q2 pitr 2)): A" n/ i J @$ j3 L4 Z& w E# r
(setq q3 (- q1 pitr 2))( |" D" m- P: h5 {
(setq q4 (+ q2 pitr 2))
, d4 X& Q& x0 }2 \8 ~: U: j5 a (setq q1 (list q5 q6))
7 A1 g0 P/ o9 s9 m5 { (setq q2 (list q3 q4))% a( D% Y& y+ `
(command "zoom" "w" q1 q2)+ J4 s. u; ~2 I9 r$ R" ^: X
)
9 C k5 V" j2 j! ~# q- o )
: j$ n! j5 D/ n. h9 P: J% V8 R (setvar "pickbox" 5)
; V6 m' R& O) J: G( H (setvar "aperture" 5)
9 y0 @ Y) t r0 d8 B (setvar "osmode" 37)
5 I6 E `6 C0 q! p5 H* v* `9 g% W : v: k# L# u& j9 |- U
(princ "Finish gear ")
" Z6 ~! Y( p% a C" @# _6 A I (princ numt)
7 T2 ]* g( u( e) J& @ (princ "T")
5 ], ~! D$ I. t& [. B$ u; U (princ)
; r1 Y! U+ T7 s* Q1 R ) T# b+ {3 ~5 Y! h2 {0 L+ }
6 @: K. X% f- A4 |% u) @$ W |