标准齿轮分度圆的压力角为20度

kwok

把第二行=>(setvar "_ZW_XSDSCMDPAUSE" 1)  删掉试试

yoyoho

(defun C:jkx ()
;(setvar "_ZW_XSDSCMDPAUSE" 1)
(setq pi1 (/ pi 180))
(setq po0 (getpoint "\n 请输入中心点:"))
(if (= po0 nil)
(setq po0 (list 0 0 0))
)
(SETQ d (GETREAL "\n 请输入分度圆直径:"))
(if (= d nil)
(setq d 100)
)
(setq step (getreal "\n 渐开线精细度(0<精细度<=10):"))
(if (= step nil)
(setq step 1)
)
(setq rd (/ d 2))
(setq os (getvar "osmode"))
(setvar "osmode" 0)
(command "UCS" "O" po0)
(command "CIRCLE" "0,0" rd)
(SETQ R (* rd (COS (* PI1 20))));标准齿轮分度圆的压力角为20度
(SETQ ST 0)
(SETQ STR (* PI1 ST))
(SETQ X (* R (+ (COS STR) (* STR (SIN STR)))))
(SETQ Y (* R (- (SIN STR) (* STR (COS STR)))))
(SETQ XY (LIST X Y))
(COMMAND "PLINE" XY)
(SETQ ST (+ st step))
(WHILE (<= ST 360) ;齿轮上的渐开线压力角
(SETQ STR (* PI1 ST))
(SETQ X (* R (+ (COS STR) (* STR (SIN STR)))))
(SETQ Y (* R (- (SIN STR) (* STR (COS STR))))) (SETQ XY (LIST X Y))
(COMMAND XY)
(SETQ ST (+ st step))
)
(command "")
(setvar "osmode" os)
(command "UCS" "P")
)