还做读书狼 发表于 2011-9-12 22:10 3 g/ L! b8 b! L$ z! O z/ R1 k
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 ... ( {2 q2 X! N& P
(defun C:gear ()
' C0 G! b# `5 i' l (setq numt nil
* M: B9 A* H* u/ Z! i. ]2 R) } diap nil 7 m! h1 K3 I( I% h
prsa nil* W4 E- k% V% q5 g: d# R9 g1 T) g
pnts nil1 l! d1 b$ a/ k# x% o6 o9 ]
test nil7 I+ ^# q" S9 G: j" s
pwd nil
. V% {# U% t% w z ) G: S5 [/ `. N& h$ V! {
: J- @0 S% s" `7 ]" ~ (setq numt (getint "Number of teeth:<24>"))+ o9 @: d& R& d6 P0 j
(if (= numt nil)
8 G' K3 l f) z+ K (setq numt 24)
; u1 I/ Z% w& [: l7 [1 O g )
8 Z; k( G" L" S- e# R) {) w (setq diap (getreal "Modulus of gear:<0.5> "))" Y( I5 l& v: v6 n* z2 F) o
(if (= diap nil)' S& r) ~1 e1 y4 _- q) u: t
(setq diap (/ 1 0.5))
' B0 e9 F+ ?1 \9 Y3 F5 @# e (setq diap (/ 1 diap))
% m3 V. y, i5 {" H' k, t )! Y) Y- b x; r: ] y4 u* p' f
(setq prsa (getreal "Pressure angle:<20.0> ")). Z2 m' n! a8 W( I1 s/ i
(if (= prsa nil)
) ~# A# [1 g! D0 E$ R (setq prsa 20.0)1 N2 D# o9 A5 a- O& g) c9 r
)
$ ?( `/ e+ i5 a: S* z (setq pnts (getint "number of points on curve:<40> ")). ?: C* n* D7 f& L3 ]$ H
(if (= pnts nil)
% \, c3 g4 f( [ Z7 X! r6 h (setq pnts 40)
( p4 X$ \3 |3 s+ P+ s3 o& j )
# M0 A, p1 v8 S7 j5 d: k; (setq pwd (getreal "Please input password:"))) Z& w* R- b, o8 k* w- s
; (if (/= pwd 8833)
2 Y" ]% p5 u! k4 _: A; u; J1 @6 J7 `; (setq numt 0). K: I, r v" x9 {' H
; )
7 a* l8 D/ o' D" C N8 h; (if (= pwd nil)
! L5 f1 {$ R0 C; (setq numt 0)
6 u+ ~ `% I* _* r$ p: h7 ]+ ]; )
0 ~2 i, }8 C. p2 P! d;
h. w1 ~7 v( `9 G (command "osnap" "non")
0 Q5 e" o3 A/ j4 f# y2 O- ]' A! X3 g (setvar "cmdecho" 0)$ v) A, K( e% t
(setq oldvar (getvar "pickbox"))
4 _& g. X! I v% d0 k6 J (setvar "pickbox" 0)
& K! l/ l; z9 e2 M (setvar "aperture" 1)
8 c: \2 ^# r1 }, D (command "osmode" "0" )/ L7 g1 v7 O* e
;* B0 t& V/ @; f" } P& n
(setq prsa (/ (* prsa pi) 180.0))' N! k {7 u! S/ G
(setq pitd (/ numt diap))/ H" x' j. u9 J% X$ k; U
(setq outd (/ (+ numt 2) diap)). L3 |8 @4 ~3 D5 m, a9 }
(setq basr (/ (* pitd (cos prsa)) 2))
+ N! i: V7 `; f, i. L' D (setq orad (/ outd 2.0))
( j0 Y, b- m) n: g+ u (setq z (- (expt orad 2.0) (expt basr 2.0)))6 Z* y! h7 Y7 s% x3 e/ t& X
(setq x (sqrt z))
( ^; c; E8 t7 @) e( H3 V (setq paodd (atan (/ x basr)))
, E! z" K! t& E& x7 y f4 ^" w (setq incr (/ paodd pnts))
4 r% r, V# Y8 c' Y4 A/ O* h+ i (setq p 0.0)% X6 n1 h/ ~% A) x8 \$ `
(setq pitr (/ pitd 2.0))' ]" h9 C* _6 f. n5 ^3 |3 |6 O
(setq pang (/ 360. (* numt 4.0)))9 [# v' {" T' O5 T5 P, o8 G7 Z& \4 i
(setq pang (/ (* pang pi) 180.0))
/ Q0 ?& b3 K6 b: q% v1 a (graphscr)7 X, I1 a q6 g. `# t* Y' h
(setq p2 (getpoint "center of gear:"))
. A$ M+ q3 ^) K3 g (setq y2 (cadr p2)). `' K( I9 e: Z7 [
(setq x2 (car p2))
; u- e- x0 i8 i+ ^ (setq r0 (/ (/ (- numt 2.5) diap) 2))
2 A- r$ B/ P2 C (setq r1 (/ 0.2 diap))8 b3 F: B/ u* Y$ q- F# w- M6 y a
(setq h (sqrt (- (* (+ r1 r0) (+ r1 r0)) (* r1 r1))))' B9 K U8 z' x' e' f9 I
(setq ang0 (/ (* pi 2) numt))
5 Z# ~7 p; y8 J (setq y5 (+ y2 basr))/ N* \9 |0 E% |! C
(setq p5 (list x2 y5))
" V7 f. F e% |% R9 o (setq y55 (+ y2 r0))- z3 ?( D0 Z+ T/ c$ R1 `
(setq p55 (list x2 y55))" u! A r& V3 `8 k4 m' s
(setq p88 (list (+ x2 2) (+ y5 2)))( H6 r9 U3 W# Y' @* ]
(setq a3 (/ (* pi 5) 4))8 S+ R; V0 s# r
(setq a4 (/ pi 4))$ w* E" N( o. p. B6 h% k# `4 _
(setq pz3 (polar p2 a3 (* orad 1.5)))& g$ M& G: q: Z
(setq pz4 (polar p2 a4 (* orad 1.5)))' M5 Y" v) E% g( v- y$ T
(command "zoom" "w" pz3 pz4)
5 s- p0 g' p6 a, J4 z;
8 F9 V/ Y6 y3 e7 B$ h (setq clay (getvar "CLAYER")), @5 U2 k2 s( w/ \# L
(setq sblip (getvar "BLIPMODE"))& Y5 T3 j" H! a4 E( I' h
(setq ts (tblsearch "LAYER" "CEN"))
0 ^9 q+ ]2 K, W1 g0 M9 K5 S (if (null ts)* Z/ Z& N" T9 Y1 K# y7 |
(progn
* k! Z# W( }3 z! o* w (prompt "\nCreating new layer - CEN. ")
; ]3 Y! V5 K; k! ` (setvar "BLIPMODE" 0)- _+ b! w3 e; r, B. E
(command "LAYER" "M" "CEN" "LT" "CENTER" "CEN" "C" "RED" "CEN" "") & @- L0 A+ i# g* A) W/ I- C
); _% s1 n+ c& v8 H- ~. H+ }
(progn
& \4 n$ n; m1 J( m& F2 S+ H" \ (if (> (cdr (assoc 70 ts)) 0) (command "LAYER" "T" "CEN" "ON" "CEN" "U" "CEN" ""))
- Q6 Q- R# ^& ~) L: z8 H (command "LAYER" "S" "cen" "")
5 e6 k; Y$ f. }: i+ c )/ |8 j0 M, ~5 A& p
)* K" P1 `4 g& |7 ~4 Y7 R
(command "circle" p2 pitr) { {( I* Z J0 w
(setvar "BLIPMODE" sblip)
7 C% v( @( A; Y1 k7 R; I (command "LAYER" "S" clay "")
0 q+ c$ w/ ?% k1 H5 V5 _ C9 w;
: R! E6 m8 z. Z$ x. U( Y (setq a1 (- (/ pi 2 ) 0.1))7 v" g! c( k I5 R) v# H" u
(setq a2 (+ (/ pi 2) 0.1))4 M& \ U1 P0 \8 }0 c
(setq pz1 (polar p2 a1 basr))8 `( B4 V( r5 m; w0 M' ~( n
(setq pz2 (polar p2 a2 orad))5 i5 P4 j8 C! Z! x9 o
(command "zoom" "w" pz1 pz2)0 ?( O: `* g3 r" G1 u9 `5 c
(setq s (ssadd))
) l/ P( Z0 O) A (setq le (entlast))# @8 u. q( V5 U% V! {# }+ h
(setq test 0)
; A | o, p' e- b8 F (command "pline" p5)
1 y& y+ g( q8 d4 @* r s$ o& T (setq p (+ incr p ))* o0 w# j& h; Q( G+ H
(while (> pnts 0)) i/ F) @+ ^ e, _
(setq e1 (sin p))* v5 \, p0 T( V) ~* W# p5 D# d2 [
(setq e2 (cos p))
6 v( H+ C' D+ i: O- o+ y (setq e (/ e1 e2))
3 M2 w2 A: q" N; Y (setq j (- e p))4 Y' K8 K6 g b4 |/ R0 ]- c
(setq x1 (* (/ (sin j) (cos p)) basr)), m% G5 e R# y$ K
(setq y1 (* (/ (cos j) (cos p)) basr)): P+ V. q+ T- \( d
(setq x3 (+ x2 x1))
3 r p. B$ U8 g( ]0 H (setq y3 (+ y2 y1))4 u4 H* r! c+ K/ d2 _
(setq p3 (list x3 y3))
7 p" U7 A/ C! @' j) u ~, ` (command p3)
' T X% M& g+ i2 q7 m+ e/ y (setq p (+ incr p)): F& T/ D5 ^! F. k. I# ]$ F0 ]
(setq pnts (- pnts 1)); g4 M. ~- c" r4 q
(if (/= test 1)
7 U) H& o0 t/ D% [2 A; G J (progn
' j9 O/ ]( b6 p( R7 } (setq hyp (sqrt (+ (expt x1 2) (expt y1 2))))
5 p( h8 X$ o" d. b1 s4 V( {; e (if (> hyp pitr); X* x$ _2 n2 n
(progn+ e2 l+ H2 u! j6 E/ _
(setq pint p3)
5 h0 p% ^$ ]: K, e6 E (setq test 1)
2 [0 c5 y& u# z7 W ); C: h% } r$ Q& z
)
* L$ r9 q$ d: _+ }# R4 }8 z5 y );endif0 f0 Q1 u2 e7 q! ]2 N6 e* @5 \! E
);endif3 `* }, W$ w. I3 j5 x
)
4 L6 r$ y9 q1 n5 j5 F0 h4 }: K (command "")' P) m6 y) r. I( {( h% J
(setq L2 (ssget "L"))
1 |- _7 L) f) w- M: M/ U (initget "Y y N n")' Y* U7 r. U1 H G0 V
(setq ans (getkword "\n Finish the gear ?:<Y> "))5 M- l5 Q4 c' `
(if (/= ans "N")
% e1 |2 i; b) v" L2 } (progn
0 H8 \1 E6 Y! H2 c! [) t1 @ (command "zoom" "w" pz1 pz2); ?/ [' O8 F: w7 |1 l
(setq p11 (osnap pint "inter"))$ o- C4 Q- W7 o
(setq ang (angle p2 p11))
, Y! J. G0 R( n7 c1 c8 n5 F (setq angi (- ang pang))
* d! [7 C4 ~* M1 \. t. Y (setq p12 (polar p2 angi 1.0))! h J4 ^) m6 \8 ^8 i: V
;) b4 ^9 ^! u8 z. N
(if (< (* 0.94 numt (/ 1 diap)) (* h 2.0005))# d( z: { r( h$ g' D
(progn7 d7 E, f' o% L. i% }
(if (< numt 42), k& U* \. C& T' h* C
(progn
! ]( H' i6 P+ q' s0 V1 w (setq p56 (list x2 (+ y2 r0)))9 l" B! z/ ?2 V
(command "line" p56 p5 "")
4 } m. G d3 Q2 U (setq L33 (entlast))9 l( _& z }# Z) Q( ?
(command "zoom" "w" p77 p88)
. q" y) V2 \, f$ T z4 N (command "mirror" L2 L33 "" p2 p12 "")4 ?4 v1 Q- z! y0 I& }( n4 h
(setq adj1 (- angi (/ pi 2)))1 C8 X* K: h) L
(setq adj2 (- (/ pi 2)(* pang 4)))
8 |$ A8 e4 w6 R+ ` (setq p17 (polar p2 (+ angi adj1) r0))
5 N) W% E5 b% S (setq p16 (polar p2 adj2 r0))# H/ D! ^% H. R8 ~8 w3 Q
(command "arc" p16 "c" p2 p17)) Z' m3 J4 l* p5 D: n) N7 N
) ;end progn
1 z) M2 L) K' E# D' B; ] (progn
i( a! q" V* x& r% {6 J* | (command "zoom" "w" p77 p88)( O9 T( v; T% {/ X% g: X' l+ I
(command "mirror" L2 "" p2 p12 "")# G! v! e' }' y; L% O4 s, |& H
(setq pL1 (entlast))
! K3 t, y( |) \7 @1 Y (setq adj1 (- angi (/ pi 2)))( u: D2 ]: g1 c- c* x: a3 Z* K; o
(setq adj2 (- (/ pi 2)(* pang 4)))
q' I; r6 w \9 M, l; N9 n (setq p17 (polar p2 (+ angi adj1) r0))
8 e# W+ B! f" D& _' p8 c+ S& W (setq p16 (polar p2 adj2 r0)), Z u- I# b0 d, o1 |
(if (> numt 101); @/ @7 d# A( a w4 U5 x2 p. V
(command "arc" p17 "c" p2 p16)
' }1 j5 A5 _ q8 y* l (command "arc" p16 "c" p2 p17)) r- E; W9 A+ q0 {- S0 l" v- f5 ]
(setq arc4 (entlast))' D( d' t' W1 |/ L2 b' p/ ]. D
(setq p171 (polar p17 0.7854 (/ 0.4 diap)))2 ?$ F2 t+ @2 i4 I5 W( i, X
(setq p172 (polar p17 3.9 (/ 0.4 diap)))
* x- P g1 a2 j. ` (if (> numt 101)
$ O, M$ B, r6 P; Y (setq p18 (polar p2 (+ angi adj1 ang0) r0))* ?" a& s# p \" g) V
(setq p18 (polar p2 (+ adj2 ang0) r0)))
8 X3 i# x2 N; L- h0 F (setq p181 (polar p18 2.3 (/ 0.4 diap)))1 c& Z& f5 G Z( a) @0 }
(setq p182 (polar p18 5.5 (/ 0.4 diap)))
9 v9 p1 V; X2 E2 ? (command "zoom" "w" p171 p172)
* J1 t1 H5 p, b: E (if (> numt 101)
3 m* N1 z, l! X' t& i) s7 x [$ V (command "extend" pL1 "" p16 "")
. N2 {3 o* e# q (command "extend" pL1 "" p17 ""))
/ G& G1 C( y+ a (setq ang0 (/ (* ang0 180) pi))* d. y$ m" q6 J
(command "rotate" arc4 "" p2 ang0)
# V; }; E# B& r (command "zoom" "w" p181 p182)
* Q2 y8 v3 d5 ]3 Y) \4 X+ o$ z (command "extend" L2 "" p18 "")
7 J( f3 k4 S3 e7 U4 l (command "zoom" "w" pz1 pz2)
3 K2 x0 L& g7 t5 \+ k8 { (command "trim" arc4 "" p5 "")/ y/ ^, e8 A; `8 B5 h: g
(command "erase" pl1 "")7 n L5 {# o9 B8 `' P( h
(command "mirror" L2 "" p2 p12 "")
9 H5 S! \: b2 } v) ?9 g ) ;end progn0 S6 E2 |+ V$ p) ^( Q
) ;end if
}4 W4 z1 N A6 ? G" ~7 v ) ;end progn
( B' y2 ^: j$ w4 Q3 U) d (progn
& }5 H5 r" \7 R u0 @ (setq ang12 (- (/ pi 2) (angle p2 p12)))
2 p& O- ]" A8 K (setq ang57 (atan (/ r1 h)))
5 x; V+ I4 k( E& N (setq ang58 (- ang0 (* ang12 2) (* ang57 2)))
! d( |; i. x% g d$ r (setq ang577 (+ (/ pi 2) ang57))$ P2 L+ g$ I# g2 L1 p& M6 g% _7 Y
(setq ang588 (+ ang577 ang58))! G: L6 \/ z) N$ n
(setq p57 (polar p2 ang577 (+ r1 r0))); _" M& o7 j( F& E0 k; k" j# E
(setq p577 (polar p2 ang577 r0)) Z0 L; C" ~0 n
(setq p588 (polar p2 ang588 r0))
) q/ N8 y! H+ _' ? E (setq p56 (list x2 (+ y2 h)))
% ^2 U6 t) B3 r: c+ V4 g3 J& C# x (command "arc" p577 "c" p57 p56)
0 X+ P, Z9 u6 s3 ]) L& t$ X (setq arc1 (entlast))7 Y. J1 Q" g2 K1 _& ?# {+ T7 h
(command "arc" p577 "c" p2 p588)
7 B4 Z" O8 ]9 I" {) v (setq arc2 (entlast))$ F/ X% i5 z& D: ]# I
(command "line" p56 p5 "")
' } A- q7 ]0 i (setq L33 (entlast))
) w5 l" q4 Z' D9 l( l0 a. Q (command "zoom" "w" p77 p88)3 X/ o' L; z' h
(command "mirror" arc1 arc2 L2 L33 "" p2 p12 "")4 Q( k4 u/ A! |- f
(command "erase" arc2 "")
+ D" X" x& M/ y5 X ) ;end progn
$ v! h8 L5 z/ c, R* N ) ;end if0 I" _. e. x" h! U- U
; 4 z6 S( A( s& c( s
(setq beta (angle p2 p3)); ]. n# Q0 j9 X1 C+ \( L
(setq ang2 (- (* angi 2) beta))
0 o0 Q" S# b. V# F1 J* V( q, \ (setq p15 (polar p2 ang2 orad))/ z8 I' F K, ?
(command "arc" p15 "c" p2 p3)
, R/ c' |9 r1 R) c A% L (while (setq le (entnext le))
# e7 e2 H! q- h- w. Q. A (ssadd le s)8 T; [9 S `* l2 S
), P! y7 E( t- r; N3 r [. j
(command "array" s "" "p" p2 numt "" "")
, v& D) W! z1 T2 c# e2 a (setq q1 (nth 0 p2))
; d/ U2 c, p. f0 X+ s9 x (setq q2 (nth 1 p2))* U. Z' u7 }2 P' Q( N9 u
(setq q5 (+ q1 pitr 2))5 T# G4 ]/ A* o7 k/ Y
(setq q6 (- q2 pitr 2))# r4 x, |4 l) B
(setq q3 (- q1 pitr 2))9 C- {$ ?+ ]0 y" t0 @5 x
(setq q4 (+ q2 pitr 2)); Z, X: ^- w: G! _1 M o# i
(setq q1 (list q5 q6))
% W C; }) U3 Q! Q% [ (setq q2 (list q3 q4))5 p" r5 ?8 P4 C7 o9 R a
(command "zoom" "w" q1 q2)
8 ? W' A/ r* r ) E0 `5 w( }$ Y5 J
)
! k/ T" ~5 x ? (setvar "pickbox" 5)5 ?# M4 o( [/ q2 C8 P
(setvar "aperture" 5); e6 T/ `! G: Y6 {6 Q5 S2 \
(setvar "osmode" 37)* B/ d8 @" i' V
2 q, E9 H/ f, o: M* ?9 [, { (princ "Finish gear ")
; D3 Q% @3 z7 @* O9 l$ ~ (princ numt)
6 D: j5 C# m2 v8 R (princ "T")
2 Q o4 g& _$ j (princ)+ Y" k2 q) B; c. L; R
). S# @& C7 v* ?, j
$ H: M6 _( @# {5 F/ ?7 {( B |