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以下就是齿轮渐开线的程序代码，唤起命令是“SG" 怎么加载忘了。; |# d8 x5 ]4 P6 T) S
;;;begain suprgear.lsp
: u& p& I; e8 |* N$ V/ l! F- o) H6 l;*************************************************
& }" v! f0 J( _/ f;SPURGEAR.LSP - a lisp program by Tony Hotchkiss
9 @9 q$ s: h5 y$ K V# Y# _! J;------------------------------------------------- 5 w2 H$ y7 T$ P$ I( v+ ^* R
; This routine draws a spur gear using joined
0 B8 l. M# l9 H9 k5 _; polylines. It lets you use any pressure angle 5 N/ {5 T& m( b2 I$ ^1 c6 y
; to design the gear teeth.
) f- G/ K/ N1 U$ Q;************************************************* ( _! p( f% T% b- s* e. Q9 x8 ~# j6 e" w
(defun err (s)
y& \# h2 S' K7 d; `1 @(if (= s "Function cancelled")
8 k8 _- z& x: K+ j$ Q0 H, i(princ "\nSPURGEAR - cancelled: ") 0 ]4 @6 `) C' D% g0 D& G; v
(progn (princ "\nSPURGEAR - Error: ") (princ s)
, p7 }! G& x+ i: w |(terpri)) $ N7 {4 v6 ?7 f1 ]' v# c
); if
0 u& O9 W( I( L3 B& N: ~% n(resetting)
+ S8 C# [; i) U2 Y/ ]( U(princ "SYSTEM VARIABLES have been reset\n") 0 N5 L2 I" w E& Q0 j" Q! r, V2 ?
(princ) 5 X1 }4 r& C/ {
); err
" e/ @& }$ L g Q9 m$ b1 @, J$ q$ t! b3 n/ T- Q) P5 o' H1 `
(defun setv (systvar newval)
0 l4 A5 k. T8 K2 I) j- o(setq x (read (strcat systvar "1")))
2 l7 s. s6 E) ^( [1 i(set x (getvar systvar))
; {6 F' ?7 q1 M6 ?(setvar systvar newval) 7 a& k) Z' F5 x; ~! T( I
); setv $ N* Q" ~2 }6 r+ j# B1 M$ Z- f
/ |( _3 C2 N* l) D4 x& _" h0 H
(defun setting () 0 T6 i! _+ a1 ^6 a* u7 x4 l0 J
(setq oerr *error*)
7 D' j2 ?7 O$ d4 `9 Y# J(setq *error* err) 1 x: H1 j1 h( l+ I: Q3 b7 Q0 |
(setv "CMDECHO" 0) 7 q/ c- {' _4 e$ h. O0 @9 v6 c
(setv "BLIPMODE" 0) 0 @7 n" A) b9 U( u4 f' x* E7 g
); end of setting , K6 ^1 _- v" x
(defun rsetv (systvar) * ^2 V) l3 @# b0 C/ T- Y$ y8 _
(setq x (read (strcat systvar "1")))
1 E0 f s7 @! Q(setvar systvar (eval x))
6 ?1 b- g+ b+ Y& v# G); restv ! v+ s. v+ T( K7 K/ K3 {
(defun resetting ()
% b( w' r$ Q: a- t! n6 Z! [2 s4 Q, c(rsetv "CMDECHO")
" t3 g$ k. ^6 L- x2 |(rsetv "BLIPMODE") 6 J" ^$ W5 s) R2 W/ t t# L/ }
(setq *error* oerr) ; T& {; i5 _. c6 P5 \8 q) @
); end of resetting
+ V e4 J; w5 p7 X l) m% Y. H
. S4 K. ?1 Y8 w. n6 A5 c p(defun dxf (code ename)
* g5 s1 H; d& o7 @8 X% b; x(cdr (assoc code (entget ename))) 3 b% r( ~' D0 [, Y1 ~
); dxf
0 q6 [* _* y+ ?: `. _* y; Z0 n
; k5 n0 n; H4 R B- `. _$ Z9 t(defun spurgear (/ D N phi DO RO A B DR DB inv-plst p1 9 t% M0 u& I" C! K$ ?
trimcode invent p0 p curvent linent linent2 ent2 p2) 3 ~0 R' [6 I( [0 R/ P9 R% j
(setq D (getreal "\nPitch diameter: ")
8 b7 W U5 \ I3 g# GN (getint "\nNumber of teeth: ") ; d/ ~( C5 _( j6 f/ |( r* H
phi (getreal "\nPressure angle: ")
% k% o, e1 r/ Z3 J0 yphi (* (/ phi 180) pi) ; Pressure angle
( N- K O; O0 b! ZDO (* D (+ (/ 2.0 N) 1.0)); Outside diameter
0 o2 ]% X, U; A0 CRO (/ DO 2.0) ; Outside radius
) m& ~4 ?8 x. W, M: `A (/ D N) ; Addendum 9 E3 o1 D* C$ P& ?5 y: a) y
B (* 1.25 A) ; Dedendum
$ C9 Z4 \- K- i. S# @DR (- D (* B 2.0)) ; Root diameter
3 a; F' \ y; g. A8 h, Z* wDB (* D (cos phi)) ; Base circle dia.
( H' M9 U. n, u( Z2 B' Ainv-plst (involute DB N phi);involute points
% C4 {4 v L; N Ntrimcode nil
8 ^, S# r6 h; c, P/ }); setq # [- x7 ^# K9 U6 i) k2 m1 w
(command "ZOOM" (list 0 (- B))
- ]+ ^: H- @1 ~(list RO (/ RO 1.5)) 6 w1 z+ o2 \3 S* D6 n; W- ^
); command ' |, v* v/ Y- }/ a8 r7 p7 l
(setq invent (draw-inv inv-plst)); Draw involute. " d0 E, x" m2 t+ d( M
(setq p0 (car inv-plst)
! M2 `3 p X1 g' a" m1 ?. K" gtrimcode (ext-trim p0 DR D);trim or extend
4 Z' ?; h' P6 @); setq ; the involute. 4 |3 h6 ]% Z' C* `+ Y5 x7 Y3 g
(if (and trimcode (= trimcode 0)) 4 r! Q3 D' ?7 E) w
(progn ; Joins the involute to the extension.
0 p" D- ^6 e% W% \(setq p (list (/ DR 2.0) 0))
0 H; f/ S+ }$ d(command "PEDIT" p "Y" "J" invent "" "X")
( u# T; Q) I. A" P(setq curvent (entlast))
, t0 t4 B* U! d# |); progn 4 E' v9 V' Q. S# N* v$ ]
(setq curvent (entlast)) % A: ]- b8 l9 Q- r
); if 7 |8 `. F* ]7 m7 `7 [; @$ J, l
(if (null trimcode) (setq curvent invent))
: G0 F" Y% d6 h9 w(setq linent (draw-top-line D DB N RO)); top line. / ^* \! c, F9 ^3 U6 @" x: O
(command "COPY" linent "" "0,0" "0,0") 7 U' D/ ?/ ]$ \5 ]
(setq linent2 (entlast)) ( i# m: C* N& j. |" E
(setq ent2 (mir-it curvent linent)); mirror curve 4 F4 D) N* u6 A- ]6 ?# p; ]
(command "PEDIT" curvent "J" linent ent2 "" "X")
$ G8 ~5 r4 ^2 Y# E, [(segment DR N linent2) ; Finish the job!
i- j; e# x6 t- S! z4 A(setq p1 (list (- RO) (- RO))) 0 E8 D% G# t) u# Z3 ^% x
(setq p2 (list RO RO)) & A' b* H# n' z, v% |4 n
(command "ZOOM" p1 p2) - C, m7 H- R) ^1 K) P4 n
(prompt "\nConverting to POLYLINE, please wait...")
4 U% f' F* p# {8 v4 f2 k& s: p(command "PEDIT" (entlast) "J" "C" p1 p2 "" "X") . M+ a1 {$ E% Q$ V6 O, M& L
(prompt "\nAll done!") . d8 M0 I# S5 d4 }' X( j& }4 a: Z% G
); spurgear
/ G `8 p# a" c
6 u5 }; z% |" b' b(defun involute (DB N phi / numer denom frac theta2max 3 Z% q% ]" V$ C w1 C" y3 A
thetamax theta-inc theta plist RB xval yval p)
1 k3 K3 J, |7 c* d, R; L* M(setq invfact 3) " | x9 m8 E R7 F5 P- G y
(setq numer (+ N 2.0) / M) O6 m: G' U1 I1 X
denom (* N (cos phi)) ( g! i. u: f5 {( U! ~2 N
frac (/ numer denom)
+ F+ {, ~1 [ w9 ]6 Itheta2max (- (* frac frac) 1)
& z3 R& ]$ L1 p% R3 dthetamax (sqrt theta2max)
/ E9 C9 k$ b+ _, C. _3 Q! rtheta-inc (/ thetamax (float invfact))
3 x9 Z4 H- K0 H, w6 ]theta 0 . q) T+ G% w' A. a
plist nil
7 a+ z1 V+ w$ ~/ u0 p6 C: iRB (/ DB 2.0)
/ i; x' c2 K/ d' h; x: ]0 F); setq
. e. M H! t% @7 O, O4 Y- _6 F: B(repeat (1+ invfact) # A" X& M0 b. b
(setq xval (do-x RB theta)
y. \3 D4 y( q0 a, X cyval (do-y RB theta) # w% P3 r0 u% ^& D4 Z8 P* i( V
p (list xval yval) }2 ?+ I1 |5 f( L" E5 `
plist (append plist (list p))
7 S! d/ T, Q( ~/ ^); setq
* A5 B8 K) V9 E(setq theta (+ theta theta-inc)) 2 G8 P" R4 d: M
); repeat , e) V) @5 w3 Q3 D) B- \: k8 `
plist
) t, Y( G) `, R+ z1 ]); involute . _" k+ H# J1 o% N
( m% | n3 r2 C6 e(defun do-x (RB theta)
9 W! S j) h M# Z# h/ p% E(* RB (+ (cos theta) (* theta (sin theta))))
/ v) w/ ` y% `, b); do-x " a* ]; O7 A' n# M I
5 g+ D" R( q' U) z! S' }
(defun do-y (RB theta) 6 _4 M8 j5 `8 J0 q- H& |! g1 a: D
(* RB (- (sin theta) (* theta (cos theta)))) 8 r `- N: D+ @+ y& X
); do-y # M0 K; Y! s+ N5 t* e+ |! R
; S( J5 }- I% U) V: R0 @4 p b(defun draw-inv (inv-plst / dirpt plist p) ) R V% l5 L! I# _* X! _6 K: x
(command "PLINE" (nth 0 inv-plst)) % j. A+ w' a! E" N8 w# V/ u& D+ J
(setq dirpt (polar (nth 0 inv-plst) 0 1))
" T" V& f. d/ [" X# ]9 l' P(command "A" "D" dirpt)
1 R" j: {- I, Y5 U(setq plist (cdr inv-plst)) O, b" J. D5 G0 T; D: q; L& k
(foreach p plist (command p)) . @2 @" ]" z2 w* x1 ^% |' Q
(command "") + t1 w9 j& m5 E* V
(entlast) % p& K9 \: \0 g
); draw-inv
' o" g( m8 {. q; w% k$ E" x, O* }5 {9 N. r: m( g
(defun ext-trim (p0 DR D / trimcode dist endr) # {6 N" v# m& n- J
(if (> (car p0) (/ DR 2.0)) ; Extends the involute
5 A( Q) I* x3 I* H& ]( s1 b8 |(progn * C ]4 ?9 s) L/ l# c
(command "LINE" (list (/ DR 2.0) 0) p0 "") ; j+ q4 c2 _; V) N
(setq trimcode 0)
# b9 G2 f- e1 }; P); progn ! A5 n( o* Z- ^6 E
); if
# d l8 c1 g8 l( a& W8 v(if (< (car p0) (/ DR 2.0)) ; Trims the involute 2 ^$ |* q* t. \# `
(progn ; R2 J% R% B. E' Q
(command "CIRCLE" "0,0" "D" DR); Root circle 1 `+ _6 F J) E; _$ Q; X$ ]9 Z, X: D
(setq dist (- (/ D 2.0) (car p0)))
0 P0 l) E2 n! j. c; P(command "ZOOM" p0 9 Z) J' ^2 Y- b0 ?, t) g7 k
(polar p0 0.6 dist)) 8 W" O3 M! I. i* x) {
(setq endr (entlast)) % x H' j/ l3 R
(command "TRIM" endr "" p0 "")
/ I, e$ Y1 M0 Z(command "ZOOM" "P")
4 V4 K1 ?; v: t% x, q4 I(entdel endr) O2 {/ b% S2 z6 V& y. x' z8 F h2 v* C
(setq trimcode 1)
1 B: g. o, g' {2 X' b* `+ p9 o9 v); progn 3 g/ h3 a; I' Z: |0 h: z
); if
! {8 w/ d2 {* r3 S7 c. F, Htrimcode ' d- Z) ?" F: N8 b" a T
); ext-trim * f* ?" k0 A! W( j
8 ~) |; f9 F1 R$ {
(defun draw-top-line (D DB N RO / theta-p xp yp alpha 5 A/ Z4 @/ j K0 J
beta tang angend inv-endpt lend)
* G& K* W6 G7 e' s% _% V- [/ C(setq theta-p (sqrt (- (* (/ D DB) (/ D DB)) 1.0))
) G, q0 T* I7 f, b" Dxp (do-x (/ DB 2.0) theta-p); This section
A* I8 E3 W# I% ^0 |" H4 k0 U! kyp (do-y (/ DB 2.0) theta-p); sets up angles ' ?7 y) m# S; d6 m9 U
alpha (atan yp xp) ; for drawing a
; A9 R* Y$ k6 b( y0 k$ D6 l% babeta (angle (list 0 0) (last inv-plst))
4 x1 Z2 _# u8 Z5 |beta (- abeta alpha) ; line across the
7 {; |8 w, C4 e" _tang (/ pi N) ; top of a tooth . i4 m# Q3 f4 P9 n1 [" [6 v) k
angend (- (+ alpha tang) beta) 3 `, X1 [& q6 l0 e# V7 r
inv-endpt (last inv-plst); This also creates + Y* u8 U6 F/ h- H, E
lend (polar (list 0 0) angend RO); the tooth ; |; s v7 E0 U, U4 N, I! q' m& y) m
); setq ; thickness. + C) E1 u8 p; V K- S7 e
(command "LINE" inv-endpt lend ""); Draws the line 8 H" W; u# q4 Q
(redraw) 1 z; Z3 ?' M, o2 W3 C+ l% Y* H% L5 M
(entlast)
; c' _0 t0 ]+ w: S% d3 O); draw-top-line ' h- A, F5 l" K7 {
% k- q9 a7 O) J, A( j: g( {! E" G
(defun mir-it (cvent linent / pt) 8 O" J. L+ T. D! I% d/ Y( s3 M8 Z; j
(setq pt (dxf 11 linent))
" Y* w5 x' s ~. r, f/ F: ^(command "MIRROR" cvent "" "MID" pt "0,0" "") + @' m3 W! x7 k. E
(entlast) % A3 u6 \) n% s6 Z5 U# k* e/ z
); mir-it
7 n$ ?- i( ^: Z
* M2 M- H7 ?3 O6 d" g* f" B(defun segment (DR N en / p1 p2 ang dist midp p0 pang 2 h, y# w8 W# [- f
pang2 p p3 ent3 entl1 entl2 en1 en2) 2 v3 [, W7 J* D; B+ b$ s" s7 t% L
(setq p1 (dxf 10 en) 9 k7 R/ F8 d, |9 H% S
p2 (dxf 11 en)
0 I% [# }$ l2 T* T# F$ @- G- |ang (angle p1 p2)
- c8 y" d: ^6 g( B4 Y7 Q* i2 Edist (/ (distance p1 p2) 2.0)
! w9 }! y4 u Z& y! R2 P! Gmidp (polar p1 ang dist)
, V; x" W1 c# v: m9 K/ ` o' T0 [p0 (list 0 0)
. V' _6 Q: | Z% z7 j8 ^& ~pang (angle p0 midp)
3 N2 ?3 L9 z+ L% \6 y& r/ ]# hpang2 (/ pi N)
3 k8 q% y0 g8 ~. f ~& K/ ap (polar p0 pang (/ DR 2.0))
, t8 Q ` ?9 {& D; z* Rp1 (polar p0 (- pang pang2) (/ DR 2.0)) 7 ?, E5 d/ `4 o
p2 (polar p0 (+ pang pang2) (/ DR 2.0))
# C: |+ f; L* np3 (polar p0 (+ pang pang2 pang2) (/ DR 2.0)) * H& i. Y1 F1 L: I: A. s. U8 Q B% x9 L" B
ent3 (entlast); This is the tooth p-line * \, \) V* O" E9 N9 F6 k% I
); setq
* D/ u8 X! f& K" g# Q4 s(command "ZOOM" "W" p3 p1)
2 J* e0 I' S' h1 [. _/ }( Q(command "CIRCLE" "0,0" "D" DR) ;Root circle + n" O1 m$ ^* U9 x0 f, [$ m( P+ |$ P2 N% s
(command "TRIM" ent3 "" p ""); Trim the root circle
% X3 w$ g- p: j9 Q(command "ZOOM" "P") 2 o, ?8 \; Y- E; J8 Y5 \ `
(command "LINE" p0 p1 "")
4 t! j4 X; |. s" {3 I' D(setq entl1 (entlast)) . w4 m( m. P1 t1 q
(command "LINE" p0 p2 "")
1 e) ~8 p1 f, h/ G9 e(setq entl2 (entlast))
/ o& V- @* e/ e. k% x) G(command "TRIM" entl1 entl2 "" p3 "") ; {3 @3 p% O; z8 S' r! D6 X
(entdel entl1) Y# y4 U7 Y) n8 s) p- W/ y
(entdel entl2)
3 l. }- [$ q) U1 g7 E7 G(entdel en)
5 [" q- e$ J* o(command "ZOOM" "W" p3 p1) / N- v2 u5 U/ q- c5 h& n) @
(command "PEDIT" p1 "Y" "X")
7 {( B& d- `" }- a: L5 ?(setq en1 (entlast))
) b, g2 x% U0 D7 A: w' O/ O(command "PEDIT" p2 "Y" "X")
& v7 c" B7 e4 c) y5 n' M(setq en2 (entlast))
2 {; K4 ?* n9 w- K) c2 e% `(command "PEDIT" en1 "J" midp en2 "" "X")
5 w+ \' o; B4 k) J- }0 {/ L" T% x(command "ZOOM" "P")
6 j3 G8 m+ C1 ?7 f) X(command "ARRAY" p1 "" "P" "0,0" N "360" "Y")
3 `0 z: H0 t+ L; R. ^- s1 s* A); segment
# _+ }) o% ^7 O/ U" Y o- |. ]% @0 u# s( p: j4 V7 N! o+ K
(defun c:sg ()
' ~/ x" q) k8 u% S* [, \9 V3 g(setting)
; Q, a2 b; d4 m* L5 n(spurgear) ; T) X& [7 C1 F0 i+ h+ j
(resetting) * w! k) W" m# Q( D
(princ)
& j1 g' H$ F0 t4 G); c:sg
3 j+ D7 I/ K4 ]7 B" J! d
' @1 W( N- @4 R- V(prompt "\n**SPURGEAR.LSP Loaded!")
+ ?, d) B$ h+ X2 Y/ G(prompt "\n Enter 'SG' to start") ) Z7 J6 J5 ~0 ~, x. [4 R: l
;;;end suprgear.lsp |
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发表于 2008-8-25 14:22