(defun C:gear ()- F$ k. t: \0 M" ~3 c( \9 b( e
(setq numt nil7 k5 ` o3 T% m; V
diap nil ( P5 c F3 L- X O( I7 [5 ^
prsa nil! ~) @$ u" @1 U, V0 L
pnts nil
- U( H$ K7 Y% O test nil% Z v) P5 {! E4 N
pwd nil
7 v# f7 q8 z3 j )
! V" S8 T: [$ g9 M3 o
- x; ~: I# ]5 v: V w (setq numt (getint "Number of teeth:<24>"))
- ~4 T+ O; U0 C (if (= numt nil)
^+ N9 }# @; l/ t7 I (setq numt 24)1 [6 p9 G& ^( d$ A
)* D3 y g# F: ]! F: r- z. a$ a
(setq diap (getreal "Modulus of gear:<0.5> "))
0 C k u- J0 @# H (if (= diap nil)
E7 v" j- H& s' Q, b (setq diap (/ 1 0.5))
9 `$ ?9 N' ]$ e6 [) s1 j# M1 k7 g (setq diap (/ 1 diap))
4 y7 X% ^5 }; j3 `& a/ Q )
1 Q) W$ P7 `2 Y8 `4 e1 _ (setq prsa (getreal "Pressure angle:<20.0> ")), p4 t; \" `& s1 A9 b/ [
(if (= prsa nil)
' T# z5 L7 y6 O& D" D (setq prsa 20.0)1 T: s8 J5 y; `
); b v3 k& h3 g( D* ]1 x- u9 n. H
(setq pnts (getint "number of points on curve:<40> "))
, Y" ]$ k8 _; h* Z; O: m }" t (if (= pnts nil)
0 B1 z+ W6 ]' g3 D O( | (setq pnts 40)+ R) W" l* U `1 \/ T6 p8 Q9 M
)* x' ]9 G) O1 m/ v* n9 _3 k+ t3 j
; e/ t# o& l4 c
; (setq pwd (getreal "Please input password:"))5 X3 @: I5 A' r' {4 f8 ~2 C S
; (if (/= pwd 8833)# B( K0 [ Y2 R) H, v
; (setq numt 0)
/ ~4 q2 m3 a3 e; ]; )
9 ^' N/ h: u1 U! {$ }! `; (if (= pwd nil)
5 D- ^3 L4 v& ?; (setq numt 0)( E4 }" Y$ {8 f! W, ^1 r
; )
& m, c$ w" y/ C2 f5 @. @- x;
?2 U3 s. K s1 z* O (command "osnap" "non")! @1 t2 q5 a' n8 w. n
(setvar "cmdecho" 0)
3 |" v. p4 a; B5 d6 J& U (setq oldvar (getvar "pickbox"))- Z+ d* i) N& h# p
(setvar "pickbox" 0)4 o8 J# I: @! Z! a$ V% I' S
(setvar "aperture" 1) u7 D2 r \ ^6 s1 ?. B
(command "osmode" "0" )) m: @" K1 N& _; U3 \/ }
;
* X# U# g3 w5 \0 u% ?6 y, u (setq prsa (/ (* prsa pi) 180.0))
/ H- K) O: c0 ^% d (setq pitd (/ numt diap)) d" I4 R/ U0 ? b, C1 e
(setq outd (/ (+ numt 2) diap))
! K! A7 I/ X- L: Y7 w3 K( [ (setq basr (/ (* pitd (cos prsa)) 2))* b) T( f( b# V+ b. u% p- ^3 z, U
(setq orad (/ outd 2.0)), l5 w# I) [* O2 \
(setq z (- (expt orad 2.0) (expt basr 2.0)))7 @' r9 ^' d. R" {, }7 k
(setq x (sqrt z))
9 H, W6 D5 a& T4 i/ h; x9 J+ E (setq paodd (atan (/ x basr)))
+ I8 c# i- x4 s# ~ (setq incr (/ paodd pnts)): s: n$ _. ^# c$ I
(setq p 0.0)& Q! O! ^0 v3 p
(setq pitr (/ pitd 2.0))
( `' b* A* F( V$ f" _ (setq pang (/ 360. (* numt 4.0))) o' [7 v& P; r) \9 R* z
(setq pang (/ (* pang pi) 180.0))
. }4 i8 U+ K6 X/ G (graphscr)
3 j+ q z- H6 ]# A (setq p2 (getpoint "center of gear:"))
( S, G: W' x) r (setq y2 (cadr p2))
% C6 [! G& k' Z& _1 e' k- I1 { (setq x2 (car p2))
) N6 I- a: N/ k (setq r0 (/ (/ (- numt 2.5) diap) 2))
! \3 U. C; t5 S* ~" Y8 J (setq r1 (/ 0.2 diap))$ d% R& ?1 A) ^8 m3 ]8 M( ?
(setq h (sqrt (- (* (+ r1 r0) (+ r1 r0)) (* r1 r1)))): T6 A, p. B! q( N8 \, ?- c
(setq ang0 (/ (* pi 2) numt))8 f8 q: Y% A+ u+ s7 T
5 J' s; L& L) N/ c2 m& v
(setq y5 (+ y2 basr))3 {& }- f0 b: u' V% z, T
(setq p5 (list x2 y5)), B1 J n4 k F0 z7 j# J# V
(setq y55 (+ y2 r0))
, T$ a/ U1 q) E (setq p55 (list x2 y55))" \* p/ O8 N7 n/ h1 I2 d3 k c
(setq p88 (list (+ x2 2) (+ y5 2)))
% L5 h* ~! V6 T# G6 Z* H( W4 s2 u (setq a3 (/ (* pi 5) 4))
. Q/ h- P, V' d: G: g' x( I/ _ (setq a4 (/ pi 4))
4 ~2 t/ t9 |( x( C8 f (setq pz3 (polar p2 a3 (* orad 1.5)))
4 u6 x" `# l1 o e# ` (setq pz4 (polar p2 a4 (* orad 1.5)))
3 q Z0 o6 g/ ?* i (command "zoom" "w" pz3 pz4)
+ Y; a5 @; K3 \. X, {0 ^;* H9 h' T- [+ K( N1 j+ V- A
(setq clay (getvar "CLAYER"))
5 `8 {. r" V) ?2 U (setq sblip (getvar "BLIPMODE"))
. [9 {+ {. G+ g [& m (setq ts (tblsearch "LAYER" "CEN"))
5 A, ~+ y0 f) u" R+ x- T- Z& T (if (null ts)3 F5 {# ]* ~, b) f2 ?1 E- e4 [0 t
(progn
5 a0 D4 z" d* k+ I9 Y% E$ ]/ C2 u0 S6 [6 p (prompt "\nCreating new layer - CEN. ")
7 x6 k8 `: N: t2 [: X; U (setvar "BLIPMODE" 0)# D$ G) v- }+ W6 E D7 X
(command "LAYER" "M" "CEN" "LT" "CENTER" "CEN" "C" "RED" "CEN" "")
3 i E" t$ W {5 ~! u )
$ o! B% N7 w# F+ @ (progn
6 D1 F) }& I3 V8 ?6 c# J (if (> (cdr (assoc 70 ts)) 0) (command "LAYER" "T" "CEN" "ON" "CEN" "U" "CEN" ""))0 |8 A" V2 ? {$ j1 C
(command "LAYER" "S" "cen" "")
. {- N) T& n6 w( L )
3 q+ b* X ?3 @' n )
$ _0 V/ D" ? g (command "circle" p2 pitr)" b* R+ Z% [8 ? R1 C
(setvar "BLIPMODE" sblip)
* c% p4 l/ w( X7 `$ [ (command "LAYER" "S" clay "")6 }& ]8 ~5 u$ X8 D B
;# j4 k+ T' a, O4 [) L& {4 J; }$ Y
(setq a1 (- (/ pi 2 ) 0.1))% m$ h" p6 s0 v0 p
(setq a2 (+ (/ pi 2) 0.1))9 Q8 w( ?- j N
(setq pz1 (polar p2 a1 basr))
2 r& Z; d# y' |2 h& ^6 r (setq pz2 (polar p2 a2 orad)) r0 j" _( V& @. ?. w# ^
(command "zoom" "w" pz1 pz2)$ h8 m; D% l+ F9 u/ L7 S8 Y
(setq s (ssadd))
% j( r# p+ E5 h( Q" i7 I. c (setq le (entlast))
' w3 v( p5 p3 t (setq test 0)' l% O( G: v6 t' R
; q) p% v Y) C! x (command "pline" p5)& N C( P& P8 v% E9 [
(setq p (+ incr p ))
+ o# o& S/ K+ A6 p% ] X' l# |4 i (while (> pnts 0)
" z6 j4 L3 k. [5 G' c$ o (setq e1 (sin p)). H/ ^: B/ c- @( k
(setq e2 (cos p))" o( V0 V4 }5 a% ?- [
(setq e (/ e1 e2))
. o3 G" W3 F: D (setq j (- e p))
8 n- f. r9 f! \/ ^7 [ (setq x1 (* (/ (sin j) (cos p)) basr))5 e2 q p5 r; v& \
(setq y1 (* (/ (cos j) (cos p)) basr))0 q- {! h/ K/ y1 Y
(setq x3 (+ x2 x1))4 J+ }+ @9 ?0 _- x; m
(setq y3 (+ y2 y1))* W5 @! B3 J$ U' }" A# w' _1 j& ^
(setq p3 (list x3 y3))
9 ^% m) ~0 ]( Q6 A9 k3 v5 u% v: h (command p3)
6 e4 v3 b# N$ j! d8 y (setq p (+ incr p))
' o+ C6 N# c/ Q$ S" W& n) W! v (setq pnts (- pnts 1))
0 e I) Y6 l+ n5 \ (if (/= test 1)
* ]/ z! u6 u- f) u9 ^/ x (progn
) n. F' [5 a' m+ b. O U: y (setq hyp (sqrt (+ (expt x1 2) (expt y1 2))))9 H+ c2 M* G: \" U! _7 J
(if (> hyp pitr). h n& s& v& m$ G, h
(progn
- j. o+ T8 s* T0 q0 p9 L (setq pint p3)( G9 Z3 k( m. e- o
(setq test 1)* P3 C" Z3 [+ i& D: |5 i
)
: W* J1 }* P, G) m* F( l )8 \! Y, O4 Q+ J" l! C2 T' F
);endif, X8 `% m9 \2 h5 e- T: ]5 }1 I
);endif
5 v: ^, \) W" Y } )
0 W$ c. o$ }: N$ D( H$ E/ y5 k (command "")
( ?! `# {: X+ _/ J2 v2 v/ }, P- _ (setq L2 (ssget "L"))
' }0 A; H! n1 X$ N (initget "Y y N n")# F: s4 [0 a2 T( ~8 y" V0 Z3 H
(setq ans (getkword "\n Finish the gear ?:<Y> "))
$ g. x/ y0 x8 q i. X( y! U0 g (if (/= ans "N")1 q: s0 N7 n( n+ \; [4 R5 v
(progn
6 M' G; M0 Z' K0 g; A. o- |) w( A (command "zoom" "w" pz1 pz2)
5 ~) t7 Z. C2 S, L& D5 w$ ] (setq p11 (osnap pint "inter"))
2 P) U9 I& B6 G+ y/ C (setq ang (angle p2 p11))
2 ]4 z# u) x0 Y' o- M. W (setq angi (- ang pang))
8 q$ m) Q- A* a) k) R (setq p12 (polar p2 angi 1.0))$ Y x+ \- N* y# R
;6 i8 T6 o* h, d0 _2 u0 P: W! p
(if (< (* 0.94 numt (/ 1 diap)) (* h 2.0005)), h3 j* L3 E3 m7 z) \+ Z. v
(progn
, p' t# n9 z; T% Y (if (< numt 42)
& l0 J% M2 z ^! F, g% d2 n/ ^& w; e4 w (progn
; w% p% I: \) T+ P. u (setq p56 (list x2 (+ y2 r0))), p" j6 s: V8 R% L/ ^% v6 g
(command "line" p56 p5 "")
) ^7 z! o$ ~. }- @0 b! S) `- Q0 Q3 M (setq L33 (entlast))
6 {! q4 o L. w5 J; x- ~8 Q (command "zoom" "w" p77 p88)
/ a. Q; c6 X* M1 u6 ~ (command "mirror" L2 L33 "" p2 p12 "")
+ G9 C1 D) c; T. h3 m; k2 T6 Y (setq adj1 (- angi (/ pi 2)))
+ E" r1 S/ q. d* h7 J8 z8 r# r9 ? (setq adj2 (- (/ pi 2)(* pang 4))), C' Q: O# X# t* d: E. ~7 E, P( U* M
(setq p17 (polar p2 (+ angi adj1) r0))
* M3 H [# T, \; x (setq p16 (polar p2 adj2 r0))
+ w* {; G8 J2 M) m0 a (command "arc" p16 "c" p2 p17)% Q- r) ?) U. d |* i
) ;end progn* U2 B3 ?6 v) O8 b" E+ M6 ]
(progn
" w" \0 M1 v G+ I8 a' E a! \ (command "zoom" "w" p77 p88)
1 G9 d, U& M% v% {/ W (command "mirror" L2 "" p2 p12 "")
: [8 O3 k! E( N! T5 t8 z (setq pL1 (entlast)) * X- G- \: A- ~% v$ h2 i
(setq adj1 (- angi (/ pi 2)))
. l5 Z+ s9 L. V! r" f# b (setq adj2 (- (/ pi 2)(* pang 4)))
1 Y: ^8 N' @; P% x (setq p17 (polar p2 (+ angi adj1) r0))
* e2 J) @, g' W9 B (setq p16 (polar p2 adj2 r0))
8 o2 ?( m. b% @ H( Z9 H: R, D3 N0 j (if (> numt 101)
, i2 J' |$ g5 X7 J4 ~ (command "arc" p17 "c" p2 p16)
, s( z* X i' r" X (command "arc" p16 "c" p2 p17))1 U) c) f$ ^% M& B; t
(setq arc4 (entlast))/ F, \' ^& z4 J" e7 W5 Q
(setq p171 (polar p17 0.7854 (/ 0.4 diap))), s6 r( Y4 o w& J$ W; s7 W
(setq p172 (polar p17 3.9 (/ 0.4 diap)))
( M' ?0 G( d0 w (if (> numt 101)
; i g' ]% c8 G (setq p18 (polar p2 (+ angi adj1 ang0) r0))7 ~' c/ C1 K9 U4 b+ U* ~0 K
(setq p18 (polar p2 (+ adj2 ang0) r0)))
. s# O g8 b* G( x- w+ l' C' o* S8 X (setq p181 (polar p18 2.3 (/ 0.4 diap))). \) ?, ?8 L: m7 U& @# O' o& I# L
(setq p182 (polar p18 5.5 (/ 0.4 diap)))% L$ X( b# _: ?* j; Z9 c0 Z0 |! T
(command "zoom" "w" p171 p172)' c+ w" G; m% ]
(if (> numt 101)$ e# P: G1 G0 m$ e! K, O
(command "extend" pL1 "" p16 "")
) U' R9 d x$ O9 Q (command "extend" pL1 "" p17 ""))0 Q i, S `9 a* c+ U
(setq ang0 (/ (* ang0 180) pi))- a/ b+ S7 n& r' S& ~
(command "rotate" arc4 "" p2 ang0)) f( R, p' r7 B' a! \, o0 n2 q
(command "zoom" "w" p181 p182). f0 ]3 A7 b$ a$ b0 c1 e [2 R( W7 A7 e
(command "extend" L2 "" p18 "")
9 m6 L. a+ `* M+ x2 B (command "zoom" "w" pz1 pz2)
& l9 W2 E& @0 W/ e$ d (command "trim" arc4 "" p5 "")
, B7 e/ C0 D) H$ Z. d. ^) p/ @ (command "erase" pl1 ""); ?) H* {* H- {; F: \$ I2 g
(command "mirror" L2 "" p2 p12 "")
! f! ]2 G4 N) Q2 q1 B ) ;end progn' i& l# [% y6 s
) ;end if
8 K; q4 p& \; h8 Z& J" g ) ;end progn5 d2 `' i( \, U" l# s
(progn
2 b2 E9 ?6 O! p' N (setq ang12 (- (/ pi 2) (angle p2 p12)))
+ o) R# C! ]$ b5 b (setq ang57 (atan (/ r1 h)))
! ^/ w: l6 c& X5 |. M: U ]7 q (setq ang58 (- ang0 (* ang12 2) (* ang57 2)))
/ H8 R1 y# F0 w* y5 [+ E (setq ang577 (+ (/ pi 2) ang57))
) P' h4 ~* Z6 T9 ^; o- S (setq ang588 (+ ang577 ang58))* v% u5 |5 l7 M/ ~, p
(setq p57 (polar p2 ang577 (+ r1 r0)))
, ^7 N3 \" }" L: X (setq p577 (polar p2 ang577 r0))
" ~" d* g/ b6 V0 a0 D$ P+ C (setq p588 (polar p2 ang588 r0)) % \9 D6 \4 T( K5 b
(setq p56 (list x2 (+ y2 h)))
8 C9 | R# S0 S; s (command "arc" p577 "c" p57 p56)
1 j( V. m1 m9 X* K (setq arc1 (entlast)) B( q! `- N+ W$ B) n5 r0 C
(command "arc" p577 "c" p2 p588)
8 W$ c, j& g( A (setq arc2 (entlast)) [$ r5 B) l/ K- w4 ~
(command "line" p56 p5 "")
; x$ d y% l' G+ \* y (setq L33 (entlast))' e; ~5 w4 l4 D' Y# n# J1 \7 H
(command "zoom" "w" p77 p88)! j% q) f6 O4 {
(command "mirror" arc1 arc2 L2 L33 "" p2 p12 "")
" ^" J4 e: b9 S6 F (command "erase" arc2 "")5 O2 o/ J& Q7 O# K! X' _" ^
) ;end progn * i4 d# B6 k; `/ W
) ;end if/ }2 Y Y/ T. F! N$ c |
; 5 M1 n9 o: z4 S! F1 C8 O
(setq beta (angle p2 p3))
& L0 C7 A8 y7 ^! C) X (setq ang2 (- (* angi 2) beta))
: ~0 t, q0 c1 @$ N* C (setq p15 (polar p2 ang2 orad))
3 ?0 Y- ]( T5 ` (command "arc" p15 "c" p2 p3)
8 U1 q2 o& a* [) j. I# q) o" D (while (setq le (entnext le)) n N/ F+ [/ j) m5 [- j
(ssadd le s) }& I; Y7 V2 y; S4 \$ ~4 H
)- ]1 x- G. S3 S& u4 u
(command "array" s "" "p" p2 numt "" "")
6 K5 s& k" I' K; C# a (setq q1 (nth 0 p2))
]9 v) d4 `# U0 E (setq q2 (nth 1 p2)): p6 Y: J* P9 a1 T
(setq q5 (+ q1 pitr 2))
& h9 x( T; s) @$ H& ] (setq q6 (- q2 pitr 2))
, @- _" P" q0 r4 Y/ A (setq q3 (- q1 pitr 2))
9 n! d- P) f9 c' u* N (setq q4 (+ q2 pitr 2))
( B1 {3 b6 X) D1 f (setq q1 (list q5 q6)): \& s+ R3 ?- P, p8 u( C! m9 b
(setq q2 (list q3 q4))
- _; I3 j& o8 N# a (command "zoom" "w" q1 q2)
% J; j; z, D( t% s& A v7 Z4 d )
' \7 K8 q- @. M8 v" ?7 @7 u& | ). ^# P z5 {% x3 t' J
(setvar "pickbox" 5)
1 y- ~6 {! i8 V* c H' j' c3 K (setvar "aperture" 5)$ C9 L: o( Z# A) T
(setvar "osmode" 37)) V" y' R6 `. h0 r% X6 c8 ~) l" ?% v
$ U6 o3 |9 k8 J: {, b8 m) [ (princ "Finish gear ")
, ], j6 T9 ]0 O9 q/ j (princ numt)6 {0 F; O" ^$ d% w
(princ "T")
; J! J6 N# [* A7 S& e1 Q2 h* ? (princ)
: ^5 m: _% x4 c8 a) e8 h q )! W" H. c3 Q, F8 J5 C2 x
" J' T. H! J1 J- a% P9 O$ L; c |