(defun C:gear ()
2 {5 H7 y- U1 x/ V% E! | (setq numt nil
9 x& R( j/ b: ^ diap nil ; f) P+ K( @4 w, ~9 d5 r9 ~ J1 C
prsa nil
- B; m3 G- J. {' D" e C pnts nil$ s' a3 N# w) W6 y# Y& k
test nil2 K) }9 V9 ` l7 i' u# P
pwd nil: |3 O s7 }6 g9 {6 v
)
9 e7 @6 [3 x7 Q 0 |3 i C6 s7 ]( h9 p2 B1 z0 P
(setq numt (getint "Number of teeth:<24>"))9 G7 W4 N4 t P& i. Z0 U
(if (= numt nil)
L1 m! l& g6 { (setq numt 24)
" i u9 L$ [5 P )/ |$ O n% O8 u9 p1 W$ o
(setq diap (getreal "Modulus of gear:<0.5> "))
7 g" D% i7 d" S" h% P (if (= diap nil)7 i# J, s4 n! m
(setq diap (/ 1 0.5))
6 i9 o2 i/ h" S* w7 _0 [/ v8 ~ (setq diap (/ 1 diap))
) ?# s9 g g: ^" x7 H* u6 x )# @1 z" ~2 A+ Z8 z* T6 C7 H9 r
(setq prsa (getreal "Pressure angle:<20.0> "))# R* s6 f, e" ~, Q6 _/ i
(if (= prsa nil) k: C1 V' j( E/ J U
(setq prsa 20.0)- f* G# F% z8 q: [9 W
)- [: u, J$ L+ M* D) y5 Z4 s& u
(setq pnts (getint "number of points on curve:<40> "))
$ E$ z- |* z- z+ G& M# q4 Z (if (= pnts nil)
$ A$ |: C; u+ k! l6 y" l (setq pnts 40)
' e. [4 R; H) { )! `4 i9 x5 p! G. {6 I! d6 u4 w
r) ~ L& N; Y) V; (setq pwd (getreal "Please input password:"))
- x% _" P1 @0 y- x) w1 R5 v; (if (/= pwd 8833)
3 O, ?, i+ L% T# s# q; (setq numt 0)5 A1 c- V9 \0 ]' N0 l' J# _
; )
) I. g. S: |2 O, w' h" x$ Z. j; (if (= pwd nil)
3 v1 k/ o$ } U4 g; (setq numt 0)
# p- X6 x w1 q' K$ H6 ]$ P; )
' P' P P5 p( S8 L4 N- K5 ~;
6 V3 y9 k6 F, t5 n% P+ c) {% u (command "osnap" "non")6 N8 ^! z* |8 _' y8 N$ s
(setvar "cmdecho" 0)
" G% B; l! I6 _+ }/ o# m3 V (setq oldvar (getvar "pickbox"))
z5 I, w) H/ B% Y5 _ (setvar "pickbox" 0)
# `! f& k+ q% c1 ^2 ^ (setvar "aperture" 1)
: B4 i, e7 ]; L: v, J (command "osmode" "0" )9 W S& t7 ]/ L' J7 Y3 b
;/ R1 n1 V5 U! u. D3 f
(setq prsa (/ (* prsa pi) 180.0)). V$ J* f, v0 |# p! I
(setq pitd (/ numt diap))/ v& m6 Q+ H. Q. |
(setq outd (/ (+ numt 2) diap))
: {1 ]6 F6 C, |0 D7 d3 A2 ]$ e& n (setq basr (/ (* pitd (cos prsa)) 2))
[6 ^# x: u+ A( Q4 }' \7 n5 X (setq orad (/ outd 2.0))0 t V! h3 e0 O/ H* G- t. l, [2 G
(setq z (- (expt orad 2.0) (expt basr 2.0)))% l" U& }& i1 X6 ~ r# E' l$ |& Y1 D
(setq x (sqrt z)): P! k0 t7 C% O7 ]- ~
(setq paodd (atan (/ x basr)))1 i2 q0 |4 L) c; [7 r5 ?
(setq incr (/ paodd pnts))
( M& w! V$ _9 X/ ~ (setq p 0.0)- L! m$ ^! n3 i# ^) S: q6 e7 R
(setq pitr (/ pitd 2.0))
5 F$ g( g6 W$ ^8 \! Z+ x( m9 c (setq pang (/ 360. (* numt 4.0)))
: u' p2 K' q! T" n; @) a- O (setq pang (/ (* pang pi) 180.0))9 L( h `8 T/ S- w0 C7 Z
(graphscr)
$ n" A N2 B m* ?! A4 J4 s (setq p2 (getpoint "center of gear:")). ~# `+ @* j# `5 A# I
(setq y2 (cadr p2))
; d' |+ {( `" ^8 X% ~" J" \. y) n (setq x2 (car p2))4 A- i, v+ y; w4 f
(setq r0 (/ (/ (- numt 2.5) diap) 2))1 B. z5 Q% [8 ?; K4 \/ o& ]
(setq r1 (/ 0.2 diap))
( s7 B* E8 H6 @- g- a; p (setq h (sqrt (- (* (+ r1 r0) (+ r1 r0)) (* r1 r1))))
# B2 Q7 ?9 O! x" \* g8 X2 m (setq ang0 (/ (* pi 2) numt))
* h4 S; r, C" w. f6 b# q
- l8 C( ~% p0 V( e9 K3 A$ T (setq y5 (+ y2 basr))
f$ ]: j: Q& c$ X3 M# q( d (setq p5 (list x2 y5))9 R7 o+ t4 V* z; J3 ^! P: l. f
(setq y55 (+ y2 r0))
3 y3 V. d) p d( H" X% Q (setq p55 (list x2 y55))* A1 {: B4 D' R0 [. R* a$ ?! e
(setq p88 (list (+ x2 2) (+ y5 2)))& Q- l9 _# T* Z8 E- i U: R
(setq a3 (/ (* pi 5) 4))
6 n- Z: {; I$ A' \ (setq a4 (/ pi 4))/ J3 U. B. w( `# H
(setq pz3 (polar p2 a3 (* orad 1.5)))
# e5 h4 d+ `" w1 S (setq pz4 (polar p2 a4 (* orad 1.5)))
. ]' l# B2 m! f) e (command "zoom" "w" pz3 pz4)8 ]6 J; q. V: z, G% n5 d' ]
;
W8 b# l- K0 m/ ~, ` (setq clay (getvar "CLAYER"))
& t/ X+ k4 Z K0 Z (setq sblip (getvar "BLIPMODE"))
* }' | s6 H& P& v (setq ts (tblsearch "LAYER" "CEN"))' b Z+ `0 X5 ]" R0 C/ O- a
(if (null ts)
3 }% i( u: J3 f& E8 r1 Y+ [3 `' n1 ~ (progn" a. B, [% a( m+ a1 Z1 k9 \ s
(prompt "\nCreating new layer - CEN. ")
: t2 x$ [ e9 m. \9 } (setvar "BLIPMODE" 0)' N8 E- @* c. j7 W4 f
(command "LAYER" "M" "CEN" "LT" "CENTER" "CEN" "C" "RED" "CEN" "")
+ _" c5 c& s2 W( n& P. L3 { ) D) D" `4 {& ?5 S4 b
(progn8 t$ ], E$ j( ?% ~ R
(if (> (cdr (assoc 70 ts)) 0) (command "LAYER" "T" "CEN" "ON" "CEN" "U" "CEN" ""))( ^ ?$ ^/ K& ?8 _2 o1 [
(command "LAYER" "S" "cen" "")
# J1 b x0 i$ l )! ?5 J, O* c; F$ h! \
)% F/ ~" _4 N! k) A
(command "circle" p2 pitr)# n% F: y, w8 D% g$ K" [
(setvar "BLIPMODE" sblip)( i+ Q% f2 y% r1 W3 ^
(command "LAYER" "S" clay "")
( }% ]# S( R& x- n8 A4 x7 F; ?1 S" _9 G' h2 m$ k
(setq a1 (- (/ pi 2 ) 0.1))
* ?4 h& p) d! U5 t (setq a2 (+ (/ pi 2) 0.1))3 u2 z% z1 Q# F) H3 ^2 H3 I0 q; X
(setq pz1 (polar p2 a1 basr))3 x1 v/ T+ d# U$ R
(setq pz2 (polar p2 a2 orad))7 y9 U7 D" B! N. X. b. p" @
(command "zoom" "w" pz1 pz2)% o% X# B z8 ~& r! v0 [
(setq s (ssadd))
( R$ N, Y% e% h (setq le (entlast))% Q* d" v6 p2 [" H( \2 I
(setq test 0)4 b" Q* @ ]) G+ [) g3 _
6 Q/ l2 Y+ S3 P( I7 p7 |6 [1 c (command "pline" p5)
* C- X! l* {" V) ~$ ~2 s (setq p (+ incr p ))7 k5 V4 [1 P# z7 j' H3 j1 b
(while (> pnts 0)
5 e( `8 Q1 R5 m2 ]" G0 x O$ h (setq e1 (sin p)). B0 T( R# w' m& I6 Y- C2 G
(setq e2 (cos p))# ]) i* {( \5 q& X, w X$ ~
(setq e (/ e1 e2))3 W; B+ H% l, X) T
(setq j (- e p))
2 J" {5 L0 _. ?, x7 w; q (setq x1 (* (/ (sin j) (cos p)) basr))+ A# u0 H# G4 |% G" E6 B; q
(setq y1 (* (/ (cos j) (cos p)) basr))
! q# R/ s+ p. X (setq x3 (+ x2 x1))
o9 Q, p! B0 e. J/ | (setq y3 (+ y2 y1))% ]" W! g. G3 e# K
(setq p3 (list x3 y3))
% M: b3 o" d6 b$ Y) u% r9 Z% v, g (command p3)6 r4 |( e, N3 q! J, Y* E: v" l
(setq p (+ incr p))5 |) s Y: q" E9 }" q P# P0 ?/ i: w
(setq pnts (- pnts 1))
3 C+ W" _2 ?% T, d8 j9 D9 p (if (/= test 1)
" e( w1 c) ? O4 m8 ~ (progn
( u$ |4 I% X6 ~# r- Q1 S7 k* P (setq hyp (sqrt (+ (expt x1 2) (expt y1 2)))): @: [% F# c& [$ |% t. ^* S
(if (> hyp pitr)1 O+ E" G4 o& g8 z- a& s3 F
(progn0 {) Q* I" Z& q# T& k' @" x5 Z
(setq pint p3)
* z3 w) K2 G. A1 [ (setq test 1)2 s0 ~* C9 ]- l
)
1 R. Z1 L6 a: m# ^& N )4 R' `7 g/ w* a" w- s/ t
);endif
1 c4 V! T1 p1 W+ L& B* V );endif0 S" U: l1 y( R+ j
)
+ M( S- s* Z, V$ y (command "")) z, q }. _; C. s" g- O9 N& Q
(setq L2 (ssget "L"))
; }/ b2 \' k9 `% _7 s; N- O (initget "Y y N n")
' z8 D" {7 V2 q (setq ans (getkword "\n Finish the gear ?:<Y> "))( W# h5 L" I+ B9 Y' B- _2 j+ E0 s" |% {
(if (/= ans "N")
1 v0 z) J8 N3 ^: Q" m8 _, P (progn
" Q5 J( b& G0 Q7 d" }+ W3 b (command "zoom" "w" pz1 pz2); w j/ A' |7 h$ h, Q4 g
(setq p11 (osnap pint "inter"))
9 Z, u. M7 T n0 m8 _' { (setq ang (angle p2 p11))
! |% J: G4 \6 m3 ]. n8 O (setq angi (- ang pang))
- d9 w; q$ J. l! F, L2 N (setq p12 (polar p2 angi 1.0))3 k1 C, b% O$ A/ {1 \; Z3 I
;2 q5 ^2 g) ?& o O$ k! B: [% z
(if (< (* 0.94 numt (/ 1 diap)) (* h 2.0005))
6 @% b) a% c$ R3 N; o$ N (progn1 y D. _, u. ]8 ~1 m4 I6 W. x- q
(if (< numt 42)
, ?% G' y8 R6 F% P/ N p- u (progn! X- l; D6 H* H) \. a) j5 n
(setq p56 (list x2 (+ y2 r0)))6 d2 |" P. P! r; u; }& B: U
(command "line" p56 p5 "")0 I$ F+ i2 _& U9 }! x
(setq L33 (entlast))9 M n5 ?0 t8 i+ Y$ O8 k. |
(command "zoom" "w" p77 p88)
- K Z; r9 C+ d7 Z7 M (command "mirror" L2 L33 "" p2 p12 "")
0 ?# A. k. D0 n/ W (setq adj1 (- angi (/ pi 2)))% Y% h% x0 q) a! n) c( c$ n$ z' V. h- g
(setq adj2 (- (/ pi 2)(* pang 4)))- l6 K6 W/ s4 Z
(setq p17 (polar p2 (+ angi adj1) r0))
! y: p+ \- I0 l& A d) U (setq p16 (polar p2 adj2 r0))# E6 {, G& ?8 _
(command "arc" p16 "c" p2 p17)- [) k1 [' U) d% ^
) ;end progn! x C% _' `+ `- M; o: f; I2 `
(progn
* g( v8 W. g" o$ s' T (command "zoom" "w" p77 p88)8 h8 G+ }, f' A% e
(command "mirror" L2 "" p2 p12 "")- {* {6 M4 h- ^' C1 A0 w1 O! k1 m
(setq pL1 (entlast)) " n8 N# r1 F/ d6 M/ C8 e
(setq adj1 (- angi (/ pi 2)))
|2 a+ N. G5 W (setq adj2 (- (/ pi 2)(* pang 4))): v) U6 i5 g L6 Z) F
(setq p17 (polar p2 (+ angi adj1) r0))6 {% k( a& B5 o6 \5 n4 e F1 N
(setq p16 (polar p2 adj2 r0))% b& k3 a+ {8 x) |( @
(if (> numt 101)6 n' J. V0 C% w
(command "arc" p17 "c" p2 p16)
; F( w6 w8 w5 W! j/ P (command "arc" p16 "c" p2 p17))8 c4 G2 r4 |. V4 h1 d a# W! j
(setq arc4 (entlast))" F( s0 z. Y& ^ B
(setq p171 (polar p17 0.7854 (/ 0.4 diap)))
3 o2 h9 n* Z6 h w+ V5 o (setq p172 (polar p17 3.9 (/ 0.4 diap)))
, F% a8 _2 a3 J m* j4 I4 h, Q (if (> numt 101): E( s/ e4 Y8 D0 ~ n6 G
(setq p18 (polar p2 (+ angi adj1 ang0) r0)), T1 M1 x3 q! ]; K' x
(setq p18 (polar p2 (+ adj2 ang0) r0)))
8 G& U% g4 }; K+ W" A5 e; t- u, R( a (setq p181 (polar p18 2.3 (/ 0.4 diap)))
7 m, w) [) h( r) F (setq p182 (polar p18 5.5 (/ 0.4 diap))). u0 [* @1 B. V _/ M- n X
(command "zoom" "w" p171 p172)& l3 Q+ A0 I0 L: x& K" w
(if (> numt 101)* S1 a, j' ]. M3 r+ A& J/ `- \* A
(command "extend" pL1 "" p16 "")
# h" Y, I6 _8 Z (command "extend" pL1 "" p17 ""))
- ~3 s. l2 Q3 ] (setq ang0 (/ (* ang0 180) pi))! o. M$ f* d9 ~! c7 G; l
(command "rotate" arc4 "" p2 ang0)9 T' n; d& r4 J, G0 Q" L" n5 G* ^/ ]
(command "zoom" "w" p181 p182)& {0 T8 T, L* P& V e! u& y# P
(command "extend" L2 "" p18 "")
2 |4 U: _0 M1 Y. U# R (command "zoom" "w" pz1 pz2)) `2 S+ U( b! M+ F% ]5 a9 i
(command "trim" arc4 "" p5 "")
9 A/ |1 Q6 P( D+ x (command "erase" pl1 "")
, `0 \2 o% u, w( e1 y, X. \! l (command "mirror" L2 "" p2 p12 "")
2 H1 Y/ }, r3 N$ ]& Y ) ;end progn, i- j/ V- h+ Z. F" R( \
) ;end if% {; n' i* r [4 X
) ;end progn
0 G# R" [3 w( }9 X' @7 Q8 a/ W (progn . V9 @5 x- x+ T0 O! o
(setq ang12 (- (/ pi 2) (angle p2 p12)))
$ z% S, W) i/ G (setq ang57 (atan (/ r1 h)))
3 ?0 q- v) g+ k# w) f" G G (setq ang58 (- ang0 (* ang12 2) (* ang57 2))), c# l; \ _5 L* i0 q
(setq ang577 (+ (/ pi 2) ang57))
1 g+ ?8 J) `0 a# u$ B (setq ang588 (+ ang577 ang58))1 j+ c3 x4 e- m# }
(setq p57 (polar p2 ang577 (+ r1 r0)))
E% u6 B$ l' d) o1 m8 H (setq p577 (polar p2 ang577 r0))' I' r' ^" M" \4 r, f4 K# S
(setq p588 (polar p2 ang588 r0))
3 Z# O: V9 Z; D8 e; b- j; y (setq p56 (list x2 (+ y2 h)))
5 U9 A6 o: i$ d& J8 L; S. a+ A (command "arc" p577 "c" p57 p56). d5 }2 i8 q) [2 q3 r! _
(setq arc1 (entlast))
. O$ I5 @, l* \8 Q1 m. ^7 m: X (command "arc" p577 "c" p2 p588), f3 I5 N5 P$ l f; v# _$ j
(setq arc2 (entlast))
4 t$ S, {6 B5 n9 v7 G+ }8 N. q (command "line" p56 p5 "")
; A3 j9 M9 W- F$ O* }1 f' e2 ] (setq L33 (entlast))5 A6 a3 @6 ^4 ^( i
(command "zoom" "w" p77 p88)
& ^" n: { Y' M# T (command "mirror" arc1 arc2 L2 L33 "" p2 p12 "")
+ J$ y9 O- [" ]' O (command "erase" arc2 "")- q7 o) ]$ ?& F9 S4 G i$ ~
) ;end progn
( b5 j, t4 a6 t/ l ) ;end if
3 R- n1 k6 D- T- b. m" J;
+ |% [9 M5 ]8 m5 Z5 p2 `, @ (setq beta (angle p2 p3))) ]2 i0 }. B- i7 r2 B
(setq ang2 (- (* angi 2) beta))
4 S% r" c/ U2 v: Y* \ (setq p15 (polar p2 ang2 orad))4 R0 v5 e& o( ~* j
(command "arc" p15 "c" p2 p3)- n) V0 { [0 g$ A
(while (setq le (entnext le))6 q2 p4 V$ z/ u' n! }8 ^4 v7 l! n
(ssadd le s)
+ H( Q E+ b# B )
( _/ u+ |1 L; M2 w$ T1 x( f6 C7 x (command "array" s "" "p" p2 numt "" "")
' e( u6 {/ c" W$ k (setq q1 (nth 0 p2))" I1 C6 [2 h0 e( G
(setq q2 (nth 1 p2))
|! E) |" j: D# n (setq q5 (+ q1 pitr 2))7 }8 g/ l& B4 o- n
(setq q6 (- q2 pitr 2))
: e0 o+ z2 n. v, z5 r (setq q3 (- q1 pitr 2))7 X$ r. t# B/ I, ]
(setq q4 (+ q2 pitr 2))
# {5 ~, p0 B x ~5 ~ (setq q1 (list q5 q6))
7 w, q" j) `0 i9 n (setq q2 (list q3 q4))
' Y0 f- P* O# T" _% D (command "zoom" "w" q1 q2)
5 {7 A6 K5 s1 n4 D )2 s) a& m" S2 w
)
# c) u! r8 C+ u9 F* v+ g- `" z: t (setvar "pickbox" 5)$ B; \( e& y/ Z# b
(setvar "aperture" 5)2 k' n% T: l _" ?
(setvar "osmode" 37)$ c& Y) a. \3 r0 m: F
& s! ?$ ~& G* j
(princ "Finish gear ")
$ r7 z) M5 A; p* O" i! Z; L (princ numt)
. D% p+ i9 ^2 U, B (princ "T")* V) J. R/ y5 q4 S- m+ {3 @( M
(princ)
- v1 v8 ~ _' c" _* M )
l/ i( b u6 m7 O# c+ `; H z7 B( l9 _$ A8 h
|