Auto Desk

http://www.autodesk.com/

Founded by JohnWalker

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CategoryCompany (defun C:SLOT ( )

(setvar "CMDECHO" 0)
(setvar "BLIPMODE" 0)
(setq oldsnap (getvar "OSMODE"))

(setq diam (getdist "\nSlot Diameter : ")
lngth (getdist "\nSlot Length : "))

(while

(setq pt1 (getpoint "\nInsertion point:"))
(setvar "OSMODE" 0)
(setq pt2 (polar pt1 0.0 (/ (- lngth diam) 2.0))
pt3 (polar pt2 (/ pi 2.0) (/ diam 4.0))
pt4 (polar pt3 pi (- lngth diam))
pt5 (polar pt4 (* pi 1.5) (/ diam 2.0))
pt6 (polar pt5 0.0 (- lngth diam)))

(command "PLINE" pt3 "W" (/ diam 2.0) "" pt4
"ARC" pt5 "LINE" pt6 "ARC" "CLOSE")
(setvar "OSMODE" oldsnap)
);while
(princ)