(defun C:gear ()
# @' }4 |7 p/ Y2 p5 \+ q: _ (setq numt nil3 \: j) R3 u/ N" C0 u6 p9 t$ J
diap nil
1 i) Y1 R2 C3 }8 J( n9 ~5 @- q$ M( p prsa nil
. _* @" V. W. m- y pnts nil. u% j2 i) X W4 ^: w d" z
test nil
7 x4 K7 V! Q7 i, _0 ?. k pwd nil/ ^$ c2 b6 H9 s6 U3 b/ C+ i
)
4 m/ ] G$ r2 |1 J- t5 f! w* Y - v# g/ y8 [% c8 Z2 _- |, E1 V
(setq numt (getint "Number of teeth:<24>")); ~8 L( u# i3 B" u7 _5 \" W; f8 ]
(if (= numt nil)
. N( e- J$ Z+ ?' W8 h (setq numt 24)& h4 ^/ o( v( [8 T) k! n g' o
)
}; L/ C/ l; d, ?1 b9 M (setq diap (getreal "Modulus of gear:<0.5> "))
; w$ E3 c. I$ ]: F, \+ q (if (= diap nil)
1 q- ?- H" _9 |7 ` v (setq diap (/ 1 0.5))0 Z5 p) h/ {1 R2 F7 J3 q( r5 }
(setq diap (/ 1 diap))
, h9 A! _( P! r. Y. } )
( I% p. o9 m; e (setq prsa (getreal "Pressure angle:<20.0> "))
+ |; W# o3 G5 {: U (if (= prsa nil)0 S- w% O) O4 R8 P
(setq prsa 20.0)
& v/ f; J4 j* n2 }/ v" q2 w( k )
( t7 T. W& A" L (setq pnts (getint "number of points on curve:<40> "))6 C' J- y0 N9 j, P2 Q0 `0 h6 D
(if (= pnts nil)5 [+ }: `- l/ x2 v3 F# R- G
(setq pnts 40)
: K: S Y" Q! ] )
( v' w; F, l. o2 x
. Q8 ~- ]& U: ?; (setq pwd (getreal "Please input password:"))2 n' @& P2 k9 }& t7 g" T* G
; (if (/= pwd 8833)6 A Y, v9 j$ o- C" T' O f* M! c2 _
; (setq numt 0)
! O) R8 G. d: @% S4 d9 Z# g/ ]; )" \; X4 P6 W% D; X. x' j( }4 p! Y! _
; (if (= pwd nil)5 L/ d' y; P9 S3 q5 w7 ~6 ]; }
; (setq numt 0)
# k U% d0 g+ J; )2 k- r/ y1 g; ]% B
;
2 D6 Q: Q, o# u! h7 ? (command "osnap" "non")
$ V0 M' M5 f9 h* C5 b2 v1 v (setvar "cmdecho" 0)1 _* Z7 D. B, X1 _! Y
(setq oldvar (getvar "pickbox"))
8 M, Q8 @+ E: D/ Z (setvar "pickbox" 0)$ R! g1 R7 m K+ s1 ]
(setvar "aperture" 1)
9 O" P1 G3 C5 ?, o: V (command "osmode" "0" )
& j& _: P0 O; N1 h;
; m% V7 Z# K5 T: U (setq prsa (/ (* prsa pi) 180.0))
# ~, Z- q: A( D7 P! j7 X (setq pitd (/ numt diap))
/ e9 o1 Y; @) g5 p) a: S (setq outd (/ (+ numt 2) diap))- \" m- s e: S7 x
(setq basr (/ (* pitd (cos prsa)) 2))/ m5 i. q' _) M8 V4 q
(setq orad (/ outd 2.0))* i2 C4 H v! `2 `# ^+ r) T
(setq z (- (expt orad 2.0) (expt basr 2.0)))% R* T& C* N+ r8 _8 ?
(setq x (sqrt z))/ o! X( _6 H2 Z
(setq paodd (atan (/ x basr)))
2 _, j; }0 {8 Y5 M (setq incr (/ paodd pnts))/ V/ X5 k/ I8 ?; t7 J, h
(setq p 0.0)
! G% \7 V, ^5 v: v6 T, B- I/ \$ h. [ (setq pitr (/ pitd 2.0))
& @ @3 b0 Q0 s1 \8 B! p( r (setq pang (/ 360. (* numt 4.0)))
- p! g! ?8 _, N4 e (setq pang (/ (* pang pi) 180.0))
0 k0 \0 M8 |6 R- A! R3 A. _ (graphscr)
k6 T' `+ g1 O4 A2 S (setq p2 (getpoint "center of gear:"))
1 E: G% m" q3 S8 q0 K (setq y2 (cadr p2))
' n: Y2 w8 [. | (setq x2 (car p2))
% c3 u6 i$ L: O* E) q5 b6 J4 d (setq r0 (/ (/ (- numt 2.5) diap) 2))/ v0 N% c1 I* J" q, N+ [
(setq r1 (/ 0.2 diap))
T: z! Q) I6 m/ Z! o' j (setq h (sqrt (- (* (+ r1 r0) (+ r1 r0)) (* r1 r1))))3 Z8 b/ ?/ O5 ~; r/ @; X, D
(setq ang0 (/ (* pi 2) numt))( h4 I. u$ ]! F
# F% G) g9 A3 t0 O' U
(setq y5 (+ y2 basr))
`. b2 R+ ~$ P3 V$ } (setq p5 (list x2 y5))
8 P7 [4 E& ]* D0 a) L/ B F: O (setq y55 (+ y2 r0))( ^$ b1 `6 y& ^! E1 {
(setq p55 (list x2 y55))" C9 s& p5 i- [( ]& o0 `3 B
(setq p88 (list (+ x2 2) (+ y5 2)))
7 I4 n p' y' j2 \+ h, a) K1 _ (setq a3 (/ (* pi 5) 4))
1 `5 W* R. J9 | `# C (setq a4 (/ pi 4))
# H6 u: H% s) {0 _( `0 z (setq pz3 (polar p2 a3 (* orad 1.5)))) `/ C8 Z3 U. B, I7 T
(setq pz4 (polar p2 a4 (* orad 1.5)))5 O& }, L) i1 i$ f( N1 y% |
(command "zoom" "w" pz3 pz4)
& A z3 K, q5 z3 B( D5 i; l) D;" p1 Y: c' @1 p1 M% \ S+ m
(setq clay (getvar "CLAYER")). V/ g( u7 _% k
(setq sblip (getvar "BLIPMODE"))7 ]# A/ M3 q& ~# ], `9 v* M
(setq ts (tblsearch "LAYER" "CEN"))
& T& Z0 h, e/ e/ t& ]% {3 U (if (null ts). m; F1 v0 e& g G
(progn% N/ x) |* ~8 @' t; ~& n: E
(prompt "\nCreating new layer - CEN. ")
% @5 \$ q, M9 G0 d( S- Z5 F/ U (setvar "BLIPMODE" 0)
& }' G& }- e% e& |: l2 j+ w (command "LAYER" "M" "CEN" "LT" "CENTER" "CEN" "C" "RED" "CEN" "")
2 K" {8 _! v/ U) Q9 U C. t )! W' M/ X7 X' Y% F, ]* r& C
(progn: V. D7 M) E9 B2 ]
(if (> (cdr (assoc 70 ts)) 0) (command "LAYER" "T" "CEN" "ON" "CEN" "U" "CEN" ""))
, f# `4 a+ S. o8 G2 B1 J& Y (command "LAYER" "S" "cen" "")
% V/ M& \9 P2 r( i3 B2 J3 y )( G7 \7 F$ A, K" ]' p) y
)
5 ~* {: _& t& Q6 | d5 m0 c (command "circle" p2 pitr)
/ x! B0 e; O2 E$ }* V* C( ^1 z# I (setvar "BLIPMODE" sblip)
6 w# C7 u, b a' z! ^0 S (command "LAYER" "S" clay "")
! `7 v6 {# S' {( E;
7 a) `% _8 o" c3 ~ (setq a1 (- (/ pi 2 ) 0.1))
* o& A0 ^/ y! W( U( g: f$ O4 j (setq a2 (+ (/ pi 2) 0.1))
5 y+ q" V) x# s) J3 G. r (setq pz1 (polar p2 a1 basr))
% O S$ B, q7 I/ h) ^ (setq pz2 (polar p2 a2 orad))
2 F% w& C. G$ q* I, } (command "zoom" "w" pz1 pz2)
. O( n! `1 e7 N- u/ S) s/ j (setq s (ssadd))
& x# f0 S, \4 ]& S (setq le (entlast))/ s7 s# `1 A2 b% A9 u$ [
(setq test 0)
+ i6 [9 C% ~5 y
' x# ]! Q4 ]/ u6 l1 Q (command "pline" p5)% R8 Q o$ h8 {% v, T9 H! j
(setq p (+ incr p ))/ p( f( J) V, P- K) h. J
(while (> pnts 0)
9 |2 W1 w8 n' z+ E (setq e1 (sin p))5 P g$ [1 I% c i
(setq e2 (cos p))3 u" p' }2 z, q; W4 z
(setq e (/ e1 e2))
T& P; f4 B; ]' I (setq j (- e p)); g* N: v R( ^& P B5 {+ S+ }7 X* v
(setq x1 (* (/ (sin j) (cos p)) basr))" `/ h+ R5 c" U B
(setq y1 (* (/ (cos j) (cos p)) basr))/ r: C* N- k1 j" m' _# N
(setq x3 (+ x2 x1))
! w- o1 B7 d) k) F (setq y3 (+ y2 y1))
! x5 C7 W" B9 d* C/ u! c4 T3 |6 A (setq p3 (list x3 y3))
. s& u k. |, W( b( e (command p3)0 u- V3 D! Q" u9 ^3 |
(setq p (+ incr p))4 C v) n2 p5 M" w: A. c
(setq pnts (- pnts 1))5 e6 _- [) }5 Q- ^& E
(if (/= test 1); l& M, K4 x9 h: I
(progn
2 ~; D7 `: H7 e6 B (setq hyp (sqrt (+ (expt x1 2) (expt y1 2)))). B' L( F4 V/ h+ i, q: [5 \8 r
(if (> hyp pitr)5 N' S, B$ M: ?0 T; p0 i* _
(progn
( z; ~; H- t+ P$ t (setq pint p3)
* z% N% r9 N z% Q! B6 u+ } (setq test 1)* H |9 i2 H2 K8 b- M4 O& v
)
# f' s3 e! x5 r )
+ O: E' ~( {( G; o, l );endif
' |/ c! D% \1 }& O0 j& ~: f );endif9 H$ D" B4 Z" _) Y
)
- h. _$ X9 V4 z. a, O5 F, W (command ""). n; F: a; ?) G7 x' R
(setq L2 (ssget "L"))
1 j; Q) l8 E; x' c7 L: J6 W (initget "Y y N n")
/ z# b( A* X9 h9 w" r2 P9 ` (setq ans (getkword "\n Finish the gear ?:<Y> "))4 g: x' k+ Z# t5 C* R5 \: A4 o
(if (/= ans "N")! O4 A6 M9 ~6 {) R8 ` t) K
(progn; M' B9 Y$ K* t. N, w
(command "zoom" "w" pz1 pz2)
( V M$ Q& |* O0 B) k, s* C (setq p11 (osnap pint "inter"))( g4 z9 h' q. X: c% T$ I. i
(setq ang (angle p2 p11))9 B5 y6 b$ O6 }1 k& u/ m3 ?' U4 Z5 Z
(setq angi (- ang pang))
; \6 o/ {. n0 e1 p (setq p12 (polar p2 angi 1.0))
8 @7 M& o4 ~4 Z# w5 v: X;
' P$ G( N1 E8 d# P0 C& ?! u; Q& R (if (< (* 0.94 numt (/ 1 diap)) (* h 2.0005))) b1 b' G2 T6 I
(progn! F# f! Q3 V1 J' m
(if (< numt 42)( D) }. D1 k* y! T! q
(progn
9 N' J$ D6 f# M( @4 S (setq p56 (list x2 (+ y2 r0)))8 b2 ? L5 u7 f) Z$ m& d* g1 N
(command "line" p56 p5 "")
- M1 v4 k; Y* H( Z. J* } (setq L33 (entlast))
. _0 y, u$ e9 t (command "zoom" "w" p77 p88)
2 h* j# ]8 X4 X. f P* X- l (command "mirror" L2 L33 "" p2 p12 "")
/ [* B2 D1 V, h* r! l1 a1 u: ? (setq adj1 (- angi (/ pi 2)))
/ _; {% [0 @' E* K" U8 F (setq adj2 (- (/ pi 2)(* pang 4)))
: ?; D' n9 |. M7 q9 V (setq p17 (polar p2 (+ angi adj1) r0))* G( A" K! r: l# P$ @, f- C! B
(setq p16 (polar p2 adj2 r0))+ f7 y- \( R7 P: ^
(command "arc" p16 "c" p2 p17)# ~, m6 \* {) l* D
) ;end progn
! B8 E# v" A$ D* W% h (progn# B- R; e5 v H5 c, E
(command "zoom" "w" p77 p88)
0 \6 \7 C2 Q l5 [, \! {- w (command "mirror" L2 "" p2 p12 "")
' z0 |4 c6 R0 Q# L Z7 e+ d" F (setq pL1 (entlast)) # i5 {$ u; A8 o2 M% R( f) L
(setq adj1 (- angi (/ pi 2)))
$ ]" W% w8 C' @. z6 |' l- \ (setq adj2 (- (/ pi 2)(* pang 4)))
: b( ]& _0 v" m8 u5 ?! v (setq p17 (polar p2 (+ angi adj1) r0))
$ _% P4 h! G$ A (setq p16 (polar p2 adj2 r0))
4 i* u) N+ o; T& s" ^7 d (if (> numt 101)
$ h: x8 W" p9 t, I7 r7 \8 I9 g (command "arc" p17 "c" p2 p16)
5 T% k* s( n5 @) A1 I2 [ (command "arc" p16 "c" p2 p17))
+ n( C/ X9 y5 e' k8 k1 Y2 h k (setq arc4 (entlast))
6 l" u, ^! ?: q8 B) B) O! H7 S (setq p171 (polar p17 0.7854 (/ 0.4 diap)))9 R9 J+ q6 u0 w3 f7 l5 \
(setq p172 (polar p17 3.9 (/ 0.4 diap)))4 c* \0 R$ T& u/ r
(if (> numt 101). n# @/ K6 b' T0 T+ q: Z8 ^$ F
(setq p18 (polar p2 (+ angi adj1 ang0) r0))
9 A: s% Y6 e- c$ Y- w2 W0 ^ (setq p18 (polar p2 (+ adj2 ang0) r0)))" I5 S; n6 @4 p& n; U9 o
(setq p181 (polar p18 2.3 (/ 0.4 diap)))% b. t! ]9 k) G
(setq p182 (polar p18 5.5 (/ 0.4 diap)))
& m8 i! w# R- x7 H (command "zoom" "w" p171 p172)
1 |5 `( c; p' j0 p, g' d& Q9 G (if (> numt 101)4 d1 F2 a) v3 M( o* G3 w
(command "extend" pL1 "" p16 "")
, G8 t( x5 P5 q: g (command "extend" pL1 "" p17 ""))4 i% Z8 W7 g7 I; x$ W8 Z
(setq ang0 (/ (* ang0 180) pi))' _6 |# i' Q* d
(command "rotate" arc4 "" p2 ang0)
$ j5 F$ l9 E8 C. P! r# X7 i5 K (command "zoom" "w" p181 p182)
( {9 J. _6 u% b( m4 A. t9 _9 x (command "extend" L2 "" p18 "")
' d( A) p+ S% P( @) q$ t* N7 s) E( A- m (command "zoom" "w" pz1 pz2)* T5 N/ x, N+ [9 r
(command "trim" arc4 "" p5 "")
$ }. t9 `6 ]6 h/ \* i- J& B% m (command "erase" pl1 "")
, X9 X) f/ K6 |9 \0 ~: y (command "mirror" L2 "" p2 p12 "")
* H; B, Y: H& w" U1 r- j% } ) ;end progn3 N6 F* ~0 b! @+ h6 o; P. W
) ;end if5 w j8 V7 P h! i1 j8 y
) ;end progn2 L' N9 z, U5 f/ W5 ]
(progn $ C \# J2 h2 u( U' H
(setq ang12 (- (/ pi 2) (angle p2 p12))) & @( _% O8 Q# T i" o( z
(setq ang57 (atan (/ r1 h)))
/ M `+ W1 h' V( q- ? (setq ang58 (- ang0 (* ang12 2) (* ang57 2)))3 M Q; Q! H- F* g+ ~" Y" g
(setq ang577 (+ (/ pi 2) ang57))8 j a! t$ I; J _& [9 R. F
(setq ang588 (+ ang577 ang58))8 G3 F; N" y& `6 ?
(setq p57 (polar p2 ang577 (+ r1 r0))) M; _& g* s$ f, t/ T' Q: |" r
(setq p577 (polar p2 ang577 r0))
7 o1 D7 q! M- B% h: ~2 q) { (setq p588 (polar p2 ang588 r0)) & `, B3 h1 w1 y; P2 ~' C J
(setq p56 (list x2 (+ y2 h)))
$ [6 M) A, o9 S5 O) I( U (command "arc" p577 "c" p57 p56)9 f9 k0 r6 H$ Q
(setq arc1 (entlast)). ]# l' q2 |/ |8 |+ b
(command "arc" p577 "c" p2 p588)
* g% L# C" U( a1 F (setq arc2 (entlast))/ b: e; x4 g( L6 N
(command "line" p56 p5 ""), p* _. {9 e F9 ]2 d5 d
(setq L33 (entlast))" T9 R. k2 m" s
(command "zoom" "w" p77 p88)! X2 k# [4 W) G, S: _
(command "mirror" arc1 arc2 L2 L33 "" p2 p12 "")
1 p. _0 r$ |. |* E* s8 F/ V/ I# E* D (command "erase" arc2 "")
' o# `; C1 [" i5 u4 G; b ) ;end progn
8 L) e3 t# T5 P ) ;end if& v' j; r& e- N+ ^- {2 @% |
;
: `- U% s8 Z9 m) c (setq beta (angle p2 p3))# f+ [+ t0 Q2 i9 u! A+ R7 W8 O
(setq ang2 (- (* angi 2) beta))/ { P5 E6 w+ v2 S y2 }6 S' ~
(setq p15 (polar p2 ang2 orad))7 o1 o/ j/ k- g; F1 g
(command "arc" p15 "c" p2 p3)
; K% {' s1 g* Q+ \0 Y (while (setq le (entnext le))- `5 b3 ]' v" o9 b# ?6 }( E
(ssadd le s). j( B" y6 V; i- ]: h
)( ~# K g9 K2 D( H k
(command "array" s "" "p" p2 numt "" "")( C* Q" E; U8 ~6 ]+ A3 ^6 ~
(setq q1 (nth 0 p2))# S* z3 @1 m8 ^9 h: V
(setq q2 (nth 1 p2))
! ]! k4 I4 S$ q& U: f2 Z (setq q5 (+ q1 pitr 2))
- H" U4 }( S' i: ]& T (setq q6 (- q2 pitr 2))
$ s& s+ F' p# y# r+ @5 | (setq q3 (- q1 pitr 2)). w) E' B% K; T7 i( n
(setq q4 (+ q2 pitr 2))' B0 n* k9 Q& \1 b3 l5 ^
(setq q1 (list q5 q6))
4 t3 j" D5 ?, Y. g }. o/ D6 i (setq q2 (list q3 q4))) b' ?; H9 c( {. m& E
(command "zoom" "w" q1 q2)# j1 ]. }8 O3 X
)0 t S% h- V3 T5 y. A% {
)$ |: p$ i7 H+ `! c3 ~- V( D6 Q6 Y! Z) M
(setvar "pickbox" 5)& Z! Y: a0 S3 b5 g7 P$ R5 c
(setvar "aperture" 5)4 }$ J# t& j& @1 d* O+ L
(setvar "osmode" 37)! Z/ I9 X* b6 f% Q3 T
. ^3 l$ K( `" ` (princ "Finish gear ")
7 p$ M2 m3 a: [6 x (princ numt)9 F3 W' D( X+ Y6 x/ j5 R. j
(princ "T")" M* x5 u. s6 U- t. I- m, f
(princ)5 E: h Q! ~: p4 M9 k, P
)5 b' w8 V% M# V S
4 \& [5 _4 f q" e' G* S, o1 M |